* [PULL 01/35] block: Add a 'flags' param to bdrv_{pread, pwrite, pwrite_sync}()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 02/35] block: Change bdrv_{pread, pwrite, pwrite_sync}() param order Hanna Reitz
` (34 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
For consistency with other I/O functions, and in preparation to
implement them using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression child, offset, buf, bytes; @@
- bdrv_pread(child, offset, buf, bytes)
+ bdrv_pread(child, offset, buf, bytes, 0)
@@ expression child, offset, buf, bytes; @@
- bdrv_pwrite(child, offset, buf, bytes)
+ bdrv_pwrite(child, offset, buf, bytes, 0)
@@ expression child, offset, buf, bytes; @@
- bdrv_pwrite_sync(child, offset, buf, bytes)
+ bdrv_pwrite_sync(child, offset, buf, bytes, 0)
Resulting overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220609152744.3891847-2-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/block/block-io.h | 7 ++--
block/blklogwrites.c | 4 +--
block/bochs.c | 6 ++--
block/cloop.c | 10 +++---
block/crypto.c | 4 +--
block/dmg.c | 24 +++++++-------
block/io.c | 13 ++++----
block/parallels-ext.c | 4 +--
block/parallels.c | 12 +++----
block/qcow.c | 27 ++++++++-------
block/qcow2-bitmap.c | 14 ++++----
block/qcow2-cache.c | 7 ++--
block/qcow2-cluster.c | 21 ++++++------
block/qcow2-refcount.c | 42 +++++++++++------------
block/qcow2-snapshot.c | 39 +++++++++++-----------
block/qcow2.c | 44 ++++++++++++------------
block/qed.c | 8 ++---
block/vdi.c | 10 +++---
block/vhdx-log.c | 19 +++++------
block/vhdx.c | 32 ++++++++++--------
block/vmdk.c | 57 ++++++++++++++------------------
block/vpc.c | 19 ++++++-----
block/vvfat.c | 7 ++--
tests/unit/test-block-iothread.c | 8 ++---
24 files changed, 219 insertions(+), 219 deletions(-)
diff --git a/include/block/block-io.h b/include/block/block-io.h
index 053a27141a..1a02d235f8 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -42,11 +42,12 @@
int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags);
-int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes);
+int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes,
+ BdrvRequestFlags flags);
int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
- int64_t bytes);
+ int64_t bytes, BdrvRequestFlags flags);
int bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
- const void *buf, int64_t bytes);
+ const void *buf, int64_t bytes, BdrvRequestFlags flags);
/*
* Efficiently zero a region of the disk image. Note that this is a regular
* I/O request like read or write and should have a reasonable size. This
diff --git a/block/blklogwrites.c b/block/blklogwrites.c
index f7a251e91f..c5c021e6f8 100644
--- a/block/blklogwrites.c
+++ b/block/blklogwrites.c
@@ -108,7 +108,7 @@ static uint64_t blk_log_writes_find_cur_log_sector(BdrvChild *log,
while (cur_idx < nr_entries) {
int read_ret = bdrv_pread(log, cur_sector << sector_bits, &cur_entry,
- sizeof(cur_entry));
+ sizeof(cur_entry), 0);
if (read_ret < 0) {
error_setg_errno(errp, -read_ret,
"Failed to read log entry %"PRIu64, cur_idx);
@@ -190,7 +190,7 @@ static int blk_log_writes_open(BlockDriverState *bs, QDict *options, int flags,
log_sb.nr_entries = cpu_to_le64(0);
log_sb.sectorsize = cpu_to_le32(BDRV_SECTOR_SIZE);
} else {
- ret = bdrv_pread(s->log_file, 0, &log_sb, sizeof(log_sb));
+ ret = bdrv_pread(s->log_file, 0, &log_sb, sizeof(log_sb), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read log superblock");
goto fail_log;
diff --git a/block/bochs.c b/block/bochs.c
index 4d68658087..46d0f6a693 100644
--- a/block/bochs.c
+++ b/block/bochs.c
@@ -116,7 +116,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs));
+ ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs), 0);
if (ret < 0) {
return ret;
}
@@ -151,7 +151,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
}
ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap,
- s->catalog_size * 4);
+ s->catalog_size * 4, 0);
if (ret < 0) {
goto fail;
}
@@ -225,7 +225,7 @@ static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num)
/* read in bitmap for current extent */
ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8),
- &bitmap_entry, 1);
+ &bitmap_entry, 1, 0);
if (ret < 0) {
return ret;
}
diff --git a/block/cloop.c b/block/cloop.c
index b8c6d0eccd..208a58ebb1 100644
--- a/block/cloop.c
+++ b/block/cloop.c
@@ -78,7 +78,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
}
/* read header */
- ret = bdrv_pread(bs->file, 128, &s->block_size, 4);
+ ret = bdrv_pread(bs->file, 128, &s->block_size, 4, 0);
if (ret < 0) {
return ret;
}
@@ -104,7 +104,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4);
+ ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4, 0);
if (ret < 0) {
return ret;
}
@@ -135,7 +135,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size);
+ ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size, 0);
if (ret < 0) {
goto fail;
}
@@ -220,8 +220,8 @@ static inline int cloop_read_block(BlockDriverState *bs, int block_num)
int ret;
uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num];
- ret = bdrv_pread(bs->file, s->offsets[block_num],
- s->compressed_block, bytes);
+ ret = bdrv_pread(bs->file, s->offsets[block_num], s->compressed_block,
+ bytes, 0);
if (ret != bytes) {
return -1;
}
diff --git a/block/crypto.c b/block/crypto.c
index 1ba82984ef..d0c22e9549 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -65,7 +65,7 @@ static ssize_t block_crypto_read_func(QCryptoBlock *block,
BlockDriverState *bs = opaque;
ssize_t ret;
- ret = bdrv_pread(bs->file, offset, buf, buflen);
+ ret = bdrv_pread(bs->file, offset, buf, buflen, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
return ret;
@@ -83,7 +83,7 @@ static ssize_t block_crypto_write_func(QCryptoBlock *block,
BlockDriverState *bs = opaque;
ssize_t ret;
- ret = bdrv_pwrite(bs->file, offset, buf, buflen);
+ ret = bdrv_pwrite(bs->file, offset, buf, buflen, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
diff --git a/block/dmg.c b/block/dmg.c
index c626587f9c..ddd1d23005 100644
--- a/block/dmg.c
+++ b/block/dmg.c
@@ -77,7 +77,7 @@ static int read_uint64(BlockDriverState *bs, int64_t offset, uint64_t *result)
uint64_t buffer;
int ret;
- ret = bdrv_pread(bs->file, offset, &buffer, 8);
+ ret = bdrv_pread(bs->file, offset, &buffer, 8, 0);
if (ret < 0) {
return ret;
}
@@ -91,7 +91,7 @@ static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result)
uint32_t buffer;
int ret;
- ret = bdrv_pread(bs->file, offset, &buffer, 4);
+ ret = bdrv_pread(bs->file, offset, &buffer, 4, 0);
if (ret < 0) {
return ret;
}
@@ -172,7 +172,7 @@ static int64_t dmg_find_koly_offset(BdrvChild *file, Error **errp)
offset = length - 511 - 512;
}
length = length < 515 ? length : 515;
- ret = bdrv_pread(file, offset, buffer, length);
+ ret = bdrv_pread(file, offset, buffer, length, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed while reading UDIF trailer");
return ret;
@@ -352,7 +352,7 @@ static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds,
offset += 4;
buffer = g_realloc(buffer, count);
- ret = bdrv_pread(bs->file, offset, buffer, count);
+ ret = bdrv_pread(bs->file, offset, buffer, count, 0);
if (ret < 0) {
goto fail;
}
@@ -389,7 +389,7 @@ static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
buffer = g_malloc(info_length + 1);
buffer[info_length] = '\0';
- ret = bdrv_pread(bs->file, info_begin, buffer, info_length);
+ ret = bdrv_pread(bs->file, info_begin, buffer, info_length, 0);
if (ret != info_length) {
ret = -EINVAL;
goto fail;
@@ -609,8 +609,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
case UDZO: { /* zlib compressed */
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk],
- s->compressed_chunk, s->lengths[chunk]);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
+ s->lengths[chunk], 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -635,8 +635,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
}
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk],
- s->compressed_chunk, s->lengths[chunk]);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
+ s->lengths[chunk], 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -656,8 +656,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
}
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk],
- s->compressed_chunk, s->lengths[chunk]);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
+ s->lengths[chunk], 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -673,7 +673,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
break;
case UDRW: /* copy */
ret = bdrv_pread(bs->file, s->offsets[chunk],
- s->uncompressed_chunk, s->lengths[chunk]);
+ s->uncompressed_chunk, s->lengths[chunk], 0);
if (ret != s->lengths[chunk]) {
return -1;
}
diff --git a/block/io.c b/block/io.c
index 1e9bf09a49..b965efa871 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1097,7 +1097,8 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
}
/* See bdrv_pwrite() for the return codes */
-int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes)
+int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes,
+ BdrvRequestFlags flags)
{
int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
@@ -1107,7 +1108,7 @@ int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes)
return -EINVAL;
}
- ret = bdrv_preadv(child, offset, bytes, &qiov, 0);
+ ret = bdrv_preadv(child, offset, bytes, &qiov, flags);
return ret < 0 ? ret : bytes;
}
@@ -1119,7 +1120,7 @@ int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes)
-EACCES Trying to write a read-only device
*/
int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
- int64_t bytes)
+ int64_t bytes, BdrvRequestFlags flags)
{
int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
@@ -1129,7 +1130,7 @@ int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
return -EINVAL;
}
- ret = bdrv_pwritev(child, offset, bytes, &qiov, 0);
+ ret = bdrv_pwritev(child, offset, bytes, &qiov, flags);
return ret < 0 ? ret : bytes;
}
@@ -1141,12 +1142,12 @@ int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
* Returns 0 on success, -errno in error cases.
*/
int bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
- const void *buf, int64_t count)
+ const void *buf, int64_t count, BdrvRequestFlags flags)
{
int ret;
IO_CODE();
- ret = bdrv_pwrite(child, offset, buf, count);
+ ret = bdrv_pwrite(child, offset, buf, count, flags);
if (ret < 0) {
return ret;
}
diff --git a/block/parallels-ext.c b/block/parallels-ext.c
index 5122f67ac2..f737104d12 100644
--- a/block/parallels-ext.c
+++ b/block/parallels-ext.c
@@ -94,7 +94,7 @@ static int parallels_load_bitmap_data(BlockDriverState *bs,
bdrv_dirty_bitmap_deserialize_ones(bitmap, offset, count, false);
} else {
ret = bdrv_pread(bs->file, entry << BDRV_SECTOR_BITS, buf,
- s->cluster_size);
+ s->cluster_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Failed to read bitmap data cluster");
@@ -286,7 +286,7 @@ int parallels_read_format_extension(BlockDriverState *bs,
assert(ext_off > 0);
- ret = bdrv_pread(bs->file, ext_off, ext_cluster, s->cluster_size);
+ ret = bdrv_pread(bs->file, ext_off, ext_cluster, s->cluster_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read Format Extension cluster");
goto out;
diff --git a/block/parallels.c b/block/parallels.c
index 8879b7027a..6ab82764b2 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -277,8 +277,8 @@ static coroutine_fn int parallels_co_flush_to_os(BlockDriverState *bs)
if (off + to_write > s->header_size) {
to_write = s->header_size - off;
}
- ret = bdrv_pwrite(bs->file, off, (uint8_t *)s->header + off,
- to_write);
+ ret = bdrv_pwrite(bs->file, off, (uint8_t *)s->header + off, to_write,
+ 0);
if (ret < 0) {
qemu_co_mutex_unlock(&s->lock);
return ret;
@@ -481,7 +481,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs,
ret = 0;
if (flush_bat) {
- ret = bdrv_pwrite_sync(bs->file, 0, s->header, s->header_size);
+ ret = bdrv_pwrite_sync(bs->file, 0, s->header, s->header_size, 0);
if (ret < 0) {
res->check_errors++;
goto out;
@@ -723,7 +723,7 @@ static int parallels_update_header(BlockDriverState *bs)
if (size > s->header_size) {
size = s->header_size;
}
- return bdrv_pwrite_sync(bs->file, 0, s->header, size);
+ return bdrv_pwrite_sync(bs->file, 0, s->header, size, 0);
}
static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
@@ -742,7 +742,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph));
+ ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph), 0);
if (ret < 0) {
goto fail;
}
@@ -798,7 +798,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
s->header_size = size;
}
- ret = bdrv_pread(bs->file, 0, s->header, s->header_size);
+ ret = bdrv_pread(bs->file, 0, s->header, s->header_size, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/qcow.c b/block/qcow.c
index 4fba1b9e36..20fb94c18b 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -128,7 +128,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
+ ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
if (ret < 0) {
goto fail;
}
@@ -261,7 +261,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
}
ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
- s->l1_size * sizeof(uint64_t));
+ s->l1_size * sizeof(uint64_t), 0);
if (ret < 0) {
goto fail;
}
@@ -292,7 +292,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
ret = bdrv_pread(bs->file, header.backing_file_offset,
- bs->auto_backing_file, len);
+ bs->auto_backing_file, len, 0);
if (ret < 0) {
goto fail;
}
@@ -383,7 +383,7 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);
ret = bdrv_pwrite_sync(bs->file,
s->l1_table_offset + l1_index * sizeof(tmp),
- &tmp, sizeof(tmp));
+ &tmp, sizeof(tmp), 0);
if (ret < 0) {
return ret;
}
@@ -415,13 +415,13 @@ static int get_cluster_offset(BlockDriverState *bs,
if (new_l2_table) {
memset(l2_table, 0, s->l2_size * sizeof(uint64_t));
ret = bdrv_pwrite_sync(bs->file, l2_offset, l2_table,
- s->l2_size * sizeof(uint64_t));
+ s->l2_size * sizeof(uint64_t), 0);
if (ret < 0) {
return ret;
}
} else {
ret = bdrv_pread(bs->file, l2_offset, l2_table,
- s->l2_size * sizeof(uint64_t));
+ s->l2_size * sizeof(uint64_t), 0);
if (ret < 0) {
return ret;
}
@@ -454,7 +454,7 @@ static int get_cluster_offset(BlockDriverState *bs,
/* write the cluster content */
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
ret = bdrv_pwrite(bs->file, cluster_offset, s->cluster_cache,
- s->cluster_size);
+ s->cluster_size, 0);
if (ret < 0) {
return ret;
}
@@ -492,10 +492,9 @@ static int get_cluster_offset(BlockDriverState *bs,
return -EIO;
}
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
- ret = bdrv_pwrite(bs->file,
- cluster_offset + i,
+ ret = bdrv_pwrite(bs->file, cluster_offset + i,
s->cluster_data,
- BDRV_SECTOR_SIZE);
+ BDRV_SECTOR_SIZE, 0);
if (ret < 0) {
return ret;
}
@@ -516,7 +515,7 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE);
}
ret = bdrv_pwrite_sync(bs->file, l2_offset + l2_index * sizeof(tmp),
- &tmp, sizeof(tmp));
+ &tmp, sizeof(tmp), 0);
if (ret < 0) {
return ret;
}
@@ -597,7 +596,7 @@ static int decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
csize = cluster_offset >> (63 - s->cluster_bits);
csize &= (s->cluster_size - 1);
BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED);
- ret = bdrv_pread(bs->file, coffset, s->cluster_data, csize);
+ ret = bdrv_pread(bs->file, coffset, s->cluster_data, csize, 0);
if (ret != csize)
return -1;
if (decompress_buffer(s->cluster_cache, s->cluster_size,
@@ -1030,8 +1029,8 @@ static int qcow_make_empty(BlockDriverState *bs)
int ret;
memset(s->l1_table, 0, l1_length);
- if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table,
- l1_length) < 0)
+ if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table, l1_length,
+ 0) < 0)
return -1;
ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, false,
PREALLOC_MODE_OFF, 0, NULL);
diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c
index 8fb4731551..6aa4739820 100644
--- a/block/qcow2-bitmap.c
+++ b/block/qcow2-bitmap.c
@@ -234,8 +234,8 @@ static int bitmap_table_load(BlockDriverState *bs, Qcow2BitmapTable *tb,
}
assert(tb->size <= BME_MAX_TABLE_SIZE);
- ret = bdrv_pread(bs->file, tb->offset,
- table, tb->size * BME_TABLE_ENTRY_SIZE);
+ ret = bdrv_pread(bs->file, tb->offset, table,
+ tb->size * BME_TABLE_ENTRY_SIZE, 0);
if (ret < 0) {
goto fail;
}
@@ -317,7 +317,7 @@ static int load_bitmap_data(BlockDriverState *bs,
* already cleared */
}
} else {
- ret = bdrv_pread(bs->file, data_offset, buf, s->cluster_size);
+ ret = bdrv_pread(bs->file, data_offset, buf, s->cluster_size, 0);
if (ret < 0) {
goto finish;
}
@@ -575,7 +575,7 @@ static Qcow2BitmapList *bitmap_list_load(BlockDriverState *bs, uint64_t offset,
}
dir_end = dir + size;
- ret = bdrv_pread(bs->file, offset, dir, size);
+ ret = bdrv_pread(bs->file, offset, dir, size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read bitmap directory");
goto fail;
@@ -798,7 +798,7 @@ static int bitmap_list_store(BlockDriverState *bs, Qcow2BitmapList *bm_list,
goto fail;
}
- ret = bdrv_pwrite(bs->file, dir_offset, dir, dir_size);
+ ret = bdrv_pwrite(bs->file, dir_offset, dir, dir_size, 0);
if (ret < 0) {
goto fail;
}
@@ -1339,7 +1339,7 @@ static uint64_t *store_bitmap_data(BlockDriverState *bs,
goto fail;
}
- ret = bdrv_pwrite(bs->file, off, buf, s->cluster_size);
+ ret = bdrv_pwrite(bs->file, off, buf, s->cluster_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write bitmap '%s' to file",
bm_name);
@@ -1402,7 +1402,7 @@ static int store_bitmap(BlockDriverState *bs, Qcow2Bitmap *bm, Error **errp)
}
bitmap_table_to_be(tb, tb_size);
- ret = bdrv_pwrite(bs->file, tb_offset, tb, tb_size * sizeof(tb[0]));
+ ret = bdrv_pwrite(bs->file, tb_offset, tb, tb_size * sizeof(tb[0]), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write bitmap '%s' to file",
bm_name);
diff --git a/block/qcow2-cache.c b/block/qcow2-cache.c
index 539f9ca2d5..e562e00c5c 100644
--- a/block/qcow2-cache.c
+++ b/block/qcow2-cache.c
@@ -224,7 +224,7 @@ static int qcow2_cache_entry_flush(BlockDriverState *bs, Qcow2Cache *c, int i)
}
ret = bdrv_pwrite(bs->file, c->entries[i].offset,
- qcow2_cache_get_table_addr(c, i), c->table_size);
+ qcow2_cache_get_table_addr(c, i), c->table_size, 0);
if (ret < 0) {
return ret;
}
@@ -379,9 +379,8 @@ static int qcow2_cache_do_get(BlockDriverState *bs, Qcow2Cache *c,
BLKDBG_EVENT(bs->file, BLKDBG_L2_LOAD);
}
- ret = bdrv_pread(bs->file, offset,
- qcow2_cache_get_table_addr(c, i),
- c->table_size);
+ ret = bdrv_pread(bs->file, offset, qcow2_cache_get_table_addr(c, i),
+ c->table_size, 0);
if (ret < 0) {
return ret;
}
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 20a16ba6ee..ad7107a795 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -159,8 +159,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_WRITE_TABLE);
for(i = 0; i < s->l1_size; i++)
new_l1_table[i] = cpu_to_be64(new_l1_table[i]);
- ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset,
- new_l1_table, new_l1_size2);
+ ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset, new_l1_table,
+ new_l1_size2, 0);
if (ret < 0)
goto fail;
for(i = 0; i < s->l1_size; i++)
@@ -170,8 +170,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE);
stl_be_p(data, new_l1_size);
stq_be_p(data + 4, new_l1_table_offset);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size),
- data, sizeof(data));
+ ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), data,
+ sizeof(data), 0);
if (ret < 0) {
goto fail;
}
@@ -249,7 +249,7 @@ int qcow2_write_l1_entry(BlockDriverState *bs, int l1_index)
BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);
ret = bdrv_pwrite_sync(bs->file,
s->l1_table_offset + L1E_SIZE * l1_start_index,
- buf, bufsize);
+ buf, bufsize, 0);
if (ret < 0) {
return ret;
}
@@ -2260,7 +2260,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
(void **)&l2_slice);
} else {
/* load inactive L2 tables from disk */
- ret = bdrv_pread(bs->file, slice_offset, l2_slice, slice_size2);
+ ret = bdrv_pread(bs->file, slice_offset, l2_slice,
+ slice_size2, 0);
}
if (ret < 0) {
goto fail;
@@ -2376,8 +2377,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
goto fail;
}
- ret = bdrv_pwrite(bs->file, slice_offset,
- l2_slice, slice_size2);
+ ret = bdrv_pwrite(bs->file, slice_offset, l2_slice,
+ slice_size2, 0);
if (ret < 0) {
goto fail;
}
@@ -2470,8 +2471,8 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs,
l1_table = new_l1_table;
- ret = bdrv_pread(bs->file, s->snapshots[i].l1_table_offset,
- l1_table, l1_size2);
+ ret = bdrv_pread(bs->file, s->snapshots[i].l1_table_offset, l1_table,
+ l1_size2, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index ed0ecfaa89..5aa2b61b6c 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -119,7 +119,7 @@ int qcow2_refcount_init(BlockDriverState *bs)
}
BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_LOAD);
ret = bdrv_pread(bs->file, s->refcount_table_offset,
- s->refcount_table, refcount_table_size2);
+ s->refcount_table, refcount_table_size2, 0);
if (ret < 0) {
goto fail;
}
@@ -439,7 +439,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_HOOKUP);
ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset +
refcount_table_index * REFTABLE_ENTRY_SIZE,
- &data64, sizeof(data64));
+ &data64, sizeof(data64), 0);
if (ret < 0) {
goto fail;
}
@@ -685,7 +685,7 @@ int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset,
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE);
ret = bdrv_pwrite_sync(bs->file, table_offset, new_table,
- table_size * REFTABLE_ENTRY_SIZE);
+ table_size * REFTABLE_ENTRY_SIZE, 0);
if (ret < 0) {
goto fail;
}
@@ -703,8 +703,8 @@ int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset,
data.d32 = cpu_to_be32(table_clusters);
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE);
ret = bdrv_pwrite_sync(bs->file,
- offsetof(QCowHeader, refcount_table_offset),
- &data, sizeof(data));
+ offsetof(QCowHeader, refcount_table_offset), &data,
+ sizeof(data), 0);
if (ret < 0) {
goto fail;
}
@@ -1274,7 +1274,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
}
l1_allocated = true;
- ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2);
+ ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2, 0);
if (ret < 0) {
goto fail;
}
@@ -1435,8 +1435,8 @@ fail:
cpu_to_be64s(&l1_table[i]);
}
- ret = bdrv_pwrite_sync(bs->file, l1_table_offset,
- l1_table, l1_size2);
+ ret = bdrv_pwrite_sync(bs->file, l1_table_offset, l1_table, l1_size2,
+ 0);
for (i = 0; i < l1_size; i++) {
be64_to_cpus(&l1_table[i]);
@@ -1634,7 +1634,7 @@ static int fix_l2_entry_by_zero(BlockDriverState *bs, BdrvCheckResult *res,
}
ret = bdrv_pwrite_sync(bs->file, l2e_offset, &l2_table[idx],
- l2_entry_size(s));
+ l2_entry_size(s), 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Failed to overwrite L2 "
"table entry: %s\n", strerror(-ret));
@@ -1672,7 +1672,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res,
bool metadata_overlap;
/* Read L2 table from disk */
- ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size_bytes);
+ ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size_bytes, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n");
res->check_errors++;
@@ -1888,7 +1888,7 @@ static int check_refcounts_l1(BlockDriverState *bs,
}
/* Read L1 table entries from disk */
- ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size_bytes);
+ ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size_bytes, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l1\n");
res->check_errors++;
@@ -2005,7 +2005,7 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
}
ret = bdrv_pread(bs->file, l2_offset, l2_table,
- s->l2_size * l2_entry_size(s));
+ s->l2_size * l2_entry_size(s), 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not read L2 table: %s\n",
strerror(-ret));
@@ -2058,8 +2058,8 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
goto fail;
}
- ret = bdrv_pwrite(bs->file, l2_offset, l2_table,
- s->cluster_size);
+ ret = bdrv_pwrite(bs->file, l2_offset, l2_table, s->cluster_size,
+ 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not write L2 table: %s\n",
strerror(-ret));
@@ -2578,7 +2578,7 @@ static int rebuild_refcounts_write_refblocks(
refblock_index * s->cluster_size);
ret = bdrv_pwrite(bs->file, refblock_offset, on_disk_refblock,
- s->cluster_size);
+ s->cluster_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing refblock");
return ret;
@@ -2734,7 +2734,7 @@ static int rebuild_refcount_structure(BlockDriverState *bs,
assert(reftable_length < INT_MAX);
ret = bdrv_pwrite(bs->file, reftable_offset, on_disk_reftable,
- reftable_length);
+ reftable_length, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing reftable");
goto fail;
@@ -2747,7 +2747,7 @@ static int rebuild_refcount_structure(BlockDriverState *bs,
ret = bdrv_pwrite_sync(bs->file,
offsetof(QCowHeader, refcount_table_offset),
&reftable_offset_and_clusters,
- sizeof(reftable_offset_and_clusters));
+ sizeof(reftable_offset_and_clusters), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR setting reftable");
goto fail;
@@ -3009,7 +3009,7 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, l1_ofs, l1, l1_sz2);
+ ret = bdrv_pread(bs->file, l1_ofs, l1, l1_sz2, 0);
if (ret < 0) {
g_free(l1);
return ret;
@@ -3180,7 +3180,7 @@ static int flush_refblock(BlockDriverState *bs, uint64_t **reftable,
return ret;
}
- ret = bdrv_pwrite(bs->file, offset, refblock, s->cluster_size);
+ ret = bdrv_pwrite(bs->file, offset, refblock, s->cluster_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write refblock");
return ret;
@@ -3453,7 +3453,7 @@ int qcow2_change_refcount_order(BlockDriverState *bs, int refcount_order,
}
ret = bdrv_pwrite(bs->file, new_reftable_offset, new_reftable,
- new_reftable_size * REFTABLE_ENTRY_SIZE);
+ new_reftable_size * REFTABLE_ENTRY_SIZE, 0);
for (i = 0; i < new_reftable_size; i++) {
be64_to_cpus(&new_reftable[i]);
@@ -3657,7 +3657,7 @@ int qcow2_shrink_reftable(BlockDriverState *bs)
}
ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset, reftable_tmp,
- s->refcount_table_size * REFTABLE_ENTRY_SIZE);
+ s->refcount_table_size * REFTABLE_ENTRY_SIZE, 0);
/*
* If the write in the reftable failed the image may contain a partially
* overwritten reftable. In this case it would be better to clear the
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 075269a023..dc62b0197c 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -108,7 +108,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read statically sized part of the snapshot header */
offset = ROUND_UP(offset, 8);
- ret = bdrv_pread(bs->file, offset, &h, sizeof(h));
+ ret = bdrv_pread(bs->file, offset, &h, sizeof(h), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -147,7 +147,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read known extra data */
ret = bdrv_pread(bs->file, offset, &extra,
- MIN(sizeof(extra), sn->extra_data_size));
+ MIN(sizeof(extra), sn->extra_data_size), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -185,7 +185,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
unknown_extra_data_size = sn->extra_data_size - sizeof(extra);
sn->unknown_extra_data = g_malloc(unknown_extra_data_size);
ret = bdrv_pread(bs->file, offset, sn->unknown_extra_data,
- unknown_extra_data_size);
+ unknown_extra_data_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Failed to read snapshot table");
@@ -196,7 +196,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read snapshot ID */
sn->id_str = g_malloc(id_str_size + 1);
- ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size);
+ ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -206,7 +206,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read snapshot name */
sn->name = g_malloc(name_size + 1);
- ret = bdrv_pread(bs->file, offset, sn->name, name_size);
+ ret = bdrv_pread(bs->file, offset, sn->name, name_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -349,13 +349,13 @@ int qcow2_write_snapshots(BlockDriverState *bs)
h.name_size = cpu_to_be16(name_size);
offset = ROUND_UP(offset, 8);
- ret = bdrv_pwrite(bs->file, offset, &h, sizeof(h));
+ ret = bdrv_pwrite(bs->file, offset, &h, sizeof(h), 0);
if (ret < 0) {
goto fail;
}
offset += sizeof(h);
- ret = bdrv_pwrite(bs->file, offset, &extra, sizeof(extra));
+ ret = bdrv_pwrite(bs->file, offset, &extra, sizeof(extra), 0);
if (ret < 0) {
goto fail;
}
@@ -370,20 +370,20 @@ int qcow2_write_snapshots(BlockDriverState *bs)
assert(sn->unknown_extra_data);
ret = bdrv_pwrite(bs->file, offset, sn->unknown_extra_data,
- unknown_extra_data_size);
+ unknown_extra_data_size, 0);
if (ret < 0) {
goto fail;
}
offset += unknown_extra_data_size;
}
- ret = bdrv_pwrite(bs->file, offset, sn->id_str, id_str_size);
+ ret = bdrv_pwrite(bs->file, offset, sn->id_str, id_str_size, 0);
if (ret < 0) {
goto fail;
}
offset += id_str_size;
- ret = bdrv_pwrite(bs->file, offset, sn->name, name_size);
+ ret = bdrv_pwrite(bs->file, offset, sn->name, name_size, 0);
if (ret < 0) {
goto fail;
}
@@ -406,7 +406,7 @@ int qcow2_write_snapshots(BlockDriverState *bs)
header_data.snapshots_offset = cpu_to_be64(snapshots_offset);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
- &header_data, sizeof(header_data));
+ &header_data, sizeof(header_data), 0);
if (ret < 0) {
goto fail;
}
@@ -442,7 +442,8 @@ int coroutine_fn qcow2_check_read_snapshot_table(BlockDriverState *bs,
/* qcow2_do_open() discards this information in check mode */
ret = bdrv_pread(bs->file, offsetof(QCowHeader, nb_snapshots),
- &snapshot_table_pointer, sizeof(snapshot_table_pointer));
+ &snapshot_table_pointer, sizeof(snapshot_table_pointer),
+ 0);
if (ret < 0) {
result->check_errors++;
fprintf(stderr, "ERROR failed to read the snapshot table pointer from "
@@ -513,7 +514,7 @@ int coroutine_fn qcow2_check_read_snapshot_table(BlockDriverState *bs,
snapshot_table_pointer.nb_snapshots = cpu_to_be32(s->nb_snapshots);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
&snapshot_table_pointer.nb_snapshots,
- sizeof(snapshot_table_pointer.nb_snapshots));
+ sizeof(snapshot_table_pointer.nb_snapshots), 0);
if (ret < 0) {
result->check_errors++;
fprintf(stderr, "ERROR failed to update the snapshot count in the "
@@ -694,7 +695,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
}
ret = bdrv_pwrite(bs->file, sn->l1_table_offset, l1_table,
- s->l1_size * L1E_SIZE);
+ s->l1_size * L1E_SIZE, 0);
if (ret < 0) {
goto fail;
}
@@ -829,8 +830,8 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto fail;
}
- ret = bdrv_pread(bs->file, sn->l1_table_offset,
- sn_l1_table, sn_l1_bytes);
+ ret = bdrv_pread(bs->file, sn->l1_table_offset, sn_l1_table, sn_l1_bytes,
+ 0);
if (ret < 0) {
goto fail;
}
@@ -849,7 +850,7 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
}
ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset, sn_l1_table,
- cur_l1_bytes);
+ cur_l1_bytes, 0);
if (ret < 0) {
goto fail;
}
@@ -1051,8 +1052,8 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, sn->l1_table_offset,
- new_l1_table, new_l1_bytes);
+ ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_table,
+ new_l1_bytes, 0);
if (ret < 0) {
error_setg(errp, "Failed to read l1 table for snapshot");
qemu_vfree(new_l1_table);
diff --git a/block/qcow2.c b/block/qcow2.c
index 4f5e6440fb..99192d1242 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -107,8 +107,8 @@ static ssize_t qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
return -1;
}
- ret = bdrv_pread(bs->file,
- s->crypto_header.offset + offset, buf, buflen);
+ ret = bdrv_pread(bs->file, s->crypto_header.offset + offset, buf, buflen,
+ 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
@@ -168,8 +168,8 @@ static ssize_t qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
return -1;
}
- ret = bdrv_pwrite(bs->file,
- s->crypto_header.offset + offset, buf, buflen);
+ ret = bdrv_pwrite(bs->file, s->crypto_header.offset + offset, buf, buflen,
+ 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
@@ -227,7 +227,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
printf("attempting to read extended header in offset %lu\n", offset);
#endif
- ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext));
+ ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "qcow2_read_extension: ERROR: "
"pread fail from offset %" PRIu64, offset);
@@ -255,7 +255,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
sizeof(bs->backing_format));
return 2;
}
- ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len);
+ ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_backing_format: "
"Could not read format name");
@@ -271,7 +271,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_FEATURE_TABLE:
if (p_feature_table != NULL) {
void *feature_table = g_malloc0(ext.len + 2 * sizeof(Qcow2Feature));
- ret = bdrv_pread(bs->file, offset , feature_table, ext.len);
+ ret = bdrv_pread(bs->file, offset, feature_table, ext.len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_feature_table: "
"Could not read table");
@@ -296,7 +296,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, offset, &s->crypto_header, ext.len);
+ ret = bdrv_pread(bs->file, offset, &s->crypto_header, ext.len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Unable to read CRYPTO header extension");
@@ -352,7 +352,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
break;
}
- ret = bdrv_pread(bs->file, offset, &bitmaps_ext, ext.len);
+ ret = bdrv_pread(bs->file, offset, &bitmaps_ext, ext.len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "bitmaps_ext: "
"Could not read ext header");
@@ -416,7 +416,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_DATA_FILE:
{
s->image_data_file = g_malloc0(ext.len + 1);
- ret = bdrv_pread(bs->file, offset, s->image_data_file, ext.len);
+ ret = bdrv_pread(bs->file, offset, s->image_data_file, ext.len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"ERROR: Could not read data file name");
@@ -440,7 +440,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
uext->len = ext.len;
QLIST_INSERT_HEAD(&s->unknown_header_ext, uext, next);
- ret = bdrv_pread(bs->file, offset , uext->data, uext->len);
+ ret = bdrv_pread(bs->file, offset, uext->data, uext->len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: unknown extension: "
"Could not read data");
@@ -517,7 +517,7 @@ int qcow2_mark_dirty(BlockDriverState *bs)
val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
- &val, sizeof(val));
+ &val, sizeof(val), 0);
if (ret < 0) {
return ret;
}
@@ -1308,7 +1308,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
uint64_t l1_vm_state_index;
bool update_header = false;
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
+ ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read qcow2 header");
goto fail;
@@ -1385,7 +1385,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
s->unknown_header_fields_size = header.header_length - sizeof(header);
s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);
ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,
- s->unknown_header_fields_size);
+ s->unknown_header_fields_size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read unknown qcow2 header "
"fields");
@@ -1581,7 +1581,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
goto fail;
}
ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
- s->l1_size * L1E_SIZE);
+ s->l1_size * L1E_SIZE, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read L1 table");
goto fail;
@@ -1699,7 +1699,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
goto fail;
}
ret = bdrv_pread(bs->file, header.backing_file_offset,
- bs->auto_backing_file, len);
+ bs->auto_backing_file, len, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read backing file name");
goto fail;
@@ -3081,7 +3081,7 @@ int qcow2_update_header(BlockDriverState *bs)
}
/* Write the new header */
- ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size);
+ ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size, 0);
if (ret < 0) {
goto fail;
}
@@ -4550,8 +4550,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
/* write updated header.size */
offset = cpu_to_be64(offset);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
- &offset, sizeof(offset));
+ ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size), &offset,
+ sizeof(offset), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to update the image size");
goto fail;
@@ -4828,7 +4828,7 @@ static int make_completely_empty(BlockDriverState *bs)
l1_ofs_rt_ofs_cls.reftable_offset = cpu_to_be64(s->cluster_size);
l1_ofs_rt_ofs_cls.reftable_clusters = cpu_to_be32(1);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_table_offset),
- &l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls));
+ &l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls), 0);
if (ret < 0) {
goto fail_broken_refcounts;
}
@@ -4859,8 +4859,8 @@ static int make_completely_empty(BlockDriverState *bs)
/* Enter the first refblock into the reftable */
rt_entry = cpu_to_be64(2 * s->cluster_size);
- ret = bdrv_pwrite_sync(bs->file, s->cluster_size,
- &rt_entry, sizeof(rt_entry));
+ ret = bdrv_pwrite_sync(bs->file, s->cluster_size, &rt_entry,
+ sizeof(rt_entry), 0);
if (ret < 0) {
goto fail_broken_refcounts;
}
diff --git a/block/qed.c b/block/qed.c
index f34d9a3ac1..ad86079941 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -90,7 +90,7 @@ int qed_write_header_sync(BDRVQEDState *s)
int ret;
qed_header_cpu_to_le(&s->header, &le);
- ret = bdrv_pwrite(s->bs->file, 0, &le, sizeof(le));
+ ret = bdrv_pwrite(s->bs->file, 0, &le, sizeof(le), 0);
if (ret != sizeof(le)) {
return ret;
}
@@ -207,7 +207,7 @@ static int qed_read_string(BdrvChild *file, uint64_t offset, size_t n,
if (n >= buflen) {
return -EINVAL;
}
- ret = bdrv_pread(file, offset, buf, n);
+ ret = bdrv_pread(file, offset, buf, n, 0);
if (ret < 0) {
return ret;
}
@@ -392,7 +392,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverState *bs, QDict *options,
int64_t file_size;
int ret;
- ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header));
+ ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header), 0);
if (ret < 0) {
error_setg(errp, "Failed to read QED header");
return ret;
@@ -1545,7 +1545,7 @@ static int bdrv_qed_change_backing_file(BlockDriverState *bs,
}
/* Write new header */
- ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len);
+ ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len, 0);
g_free(buffer);
if (ret == 0) {
memcpy(&s->header, &new_header, sizeof(new_header));
diff --git a/block/vdi.c b/block/vdi.c
index cca3a3a356..76cec1b883 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -385,7 +385,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
logout("\n");
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
+ ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
if (ret < 0) {
goto fail;
}
@@ -486,7 +486,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
}
ret = bdrv_pread(bs->file, header.offset_bmap, s->bmap,
- bmap_size * SECTOR_SIZE);
+ bmap_size * SECTOR_SIZE, 0);
if (ret < 0) {
goto fail_free_bmap;
}
@@ -664,7 +664,7 @@ vdi_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,
* so this full-cluster write does not overlap a partial write
* of the same cluster, issued from the "else" branch.
*/
- ret = bdrv_pwrite(bs->file, data_offset, block, s->block_size);
+ ret = bdrv_pwrite(bs->file, data_offset, block, s->block_size, 0);
qemu_co_rwlock_unlock(&s->bmap_lock);
} else {
nonallocating_write:
@@ -709,7 +709,7 @@ nonallocating_write:
assert(VDI_IS_ALLOCATED(bmap_first));
*header = s->header;
vdi_header_to_le(header);
- ret = bdrv_pwrite(bs->file, 0, header, sizeof(*header));
+ ret = bdrv_pwrite(bs->file, 0, header, sizeof(*header), 0);
g_free(header);
if (ret < 0) {
@@ -727,7 +727,7 @@ nonallocating_write:
logout("will write %u block map sectors starting from entry %u\n",
n_sectors, bmap_first);
ret = bdrv_pwrite(bs->file, offset * SECTOR_SIZE, base,
- n_sectors * SECTOR_SIZE);
+ n_sectors * SECTOR_SIZE, 0);
}
return ret < 0 ? ret : 0;
diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index ff0d4e0da0..da0057000b 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -84,7 +84,7 @@ static int vhdx_log_peek_hdr(BlockDriverState *bs, VHDXLogEntries *log,
offset = log->offset + read;
- ret = bdrv_pread(bs->file, offset, hdr, sizeof(VHDXLogEntryHeader));
+ ret = bdrv_pread(bs->file, offset, hdr, sizeof(VHDXLogEntryHeader), 0);
if (ret < 0) {
goto exit;
}
@@ -144,7 +144,7 @@ static int vhdx_log_read_sectors(BlockDriverState *bs, VHDXLogEntries *log,
}
offset = log->offset + read;
- ret = bdrv_pread(bs->file, offset, buffer, VHDX_LOG_SECTOR_SIZE);
+ ret = bdrv_pread(bs->file, offset, buffer, VHDX_LOG_SECTOR_SIZE, 0);
if (ret < 0) {
goto exit;
}
@@ -194,8 +194,8 @@ static int vhdx_log_write_sectors(BlockDriverState *bs, VHDXLogEntries *log,
/* full */
break;
}
- ret = bdrv_pwrite(bs->file, offset, buffer_tmp,
- VHDX_LOG_SECTOR_SIZE);
+ ret = bdrv_pwrite(bs->file, offset, buffer_tmp, VHDX_LOG_SECTOR_SIZE,
+ 0);
if (ret < 0) {
goto exit;
}
@@ -467,7 +467,7 @@ static int vhdx_log_flush_desc(BlockDriverState *bs, VHDXLogDescriptor *desc,
/* count is only > 1 if we are writing zeroes */
for (i = 0; i < count; i++) {
ret = bdrv_pwrite_sync(bs->file, file_offset, buffer,
- VHDX_LOG_SECTOR_SIZE);
+ VHDX_LOG_SECTOR_SIZE, 0);
if (ret < 0) {
goto exit;
}
@@ -971,7 +971,7 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s,
if (i == 0 && leading_length) {
/* partial sector at the front of the buffer */
ret = bdrv_pread(bs->file, file_offset, merged_sector,
- VHDX_LOG_SECTOR_SIZE);
+ VHDX_LOG_SECTOR_SIZE, 0);
if (ret < 0) {
goto exit;
}
@@ -980,10 +980,9 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s,
sector_write = merged_sector;
} else if (i == sectors - 1 && trailing_length) {
/* partial sector at the end of the buffer */
- ret = bdrv_pread(bs->file,
- file_offset,
- merged_sector + trailing_length,
- VHDX_LOG_SECTOR_SIZE - trailing_length);
+ ret = bdrv_pread(bs->file, file_offset,
+ merged_sector + trailing_length,
+ VHDX_LOG_SECTOR_SIZE - trailing_length, 0);
if (ret < 0) {
goto exit;
}
diff --git a/block/vhdx.c b/block/vhdx.c
index 410c6f9610..f5c812c9cf 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -326,7 +326,7 @@ static int vhdx_write_header(BdrvChild *file, VHDXHeader *hdr,
buffer = qemu_blockalign(bs_file, VHDX_HEADER_SIZE);
if (read) {
/* if true, we can't assume the extra reserved bytes are 0 */
- ret = bdrv_pread(file, offset, buffer, VHDX_HEADER_SIZE);
+ ret = bdrv_pread(file, offset, buffer, VHDX_HEADER_SIZE, 0);
if (ret < 0) {
goto exit;
}
@@ -340,7 +340,7 @@ static int vhdx_write_header(BdrvChild *file, VHDXHeader *hdr,
vhdx_header_le_export(hdr, header_le);
vhdx_update_checksum(buffer, VHDX_HEADER_SIZE,
offsetof(VHDXHeader, checksum));
- ret = bdrv_pwrite_sync(file, offset, header_le, sizeof(VHDXHeader));
+ ret = bdrv_pwrite_sync(file, offset, header_le, sizeof(VHDXHeader), 0);
exit:
qemu_vfree(buffer);
@@ -440,8 +440,8 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s,
/* We have to read the whole VHDX_HEADER_SIZE instead of
* sizeof(VHDXHeader), because the checksum is over the whole
* region */
- ret = bdrv_pread(bs->file, VHDX_HEADER1_OFFSET, buffer,
- VHDX_HEADER_SIZE);
+ ret = bdrv_pread(bs->file, VHDX_HEADER1_OFFSET, buffer, VHDX_HEADER_SIZE,
+ 0);
if (ret < 0) {
goto fail;
}
@@ -457,8 +457,8 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s,
}
}
- ret = bdrv_pread(bs->file, VHDX_HEADER2_OFFSET, buffer,
- VHDX_HEADER_SIZE);
+ ret = bdrv_pread(bs->file, VHDX_HEADER2_OFFSET, buffer, VHDX_HEADER_SIZE,
+ 0);
if (ret < 0) {
goto fail;
}
@@ -532,7 +532,7 @@ static int vhdx_open_region_tables(BlockDriverState *bs, BDRVVHDXState *s)
buffer = qemu_blockalign(bs, VHDX_HEADER_BLOCK_SIZE);
ret = bdrv_pread(bs->file, VHDX_REGION_TABLE_OFFSET, buffer,
- VHDX_HEADER_BLOCK_SIZE);
+ VHDX_HEADER_BLOCK_SIZE, 0);
if (ret < 0) {
goto fail;
}
@@ -645,7 +645,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
buffer = qemu_blockalign(bs, VHDX_METADATA_TABLE_MAX_SIZE);
ret = bdrv_pread(bs->file, s->metadata_rt.file_offset, buffer,
- VHDX_METADATA_TABLE_MAX_SIZE);
+ VHDX_METADATA_TABLE_MAX_SIZE, 0);
if (ret < 0) {
goto exit;
}
@@ -751,7 +751,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
s->metadata_entries.file_parameters_entry.offset
+ s->metadata_rt.file_offset,
&s->params,
- sizeof(s->params));
+ sizeof(s->params),
+ 0);
if (ret < 0) {
goto exit;
@@ -786,7 +787,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
s->metadata_entries.virtual_disk_size_entry.offset
+ s->metadata_rt.file_offset,
&s->virtual_disk_size,
- sizeof(uint64_t));
+ sizeof(uint64_t),
+ 0);
if (ret < 0) {
goto exit;
}
@@ -794,7 +796,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
s->metadata_entries.logical_sector_size_entry.offset
+ s->metadata_rt.file_offset,
&s->logical_sector_size,
- sizeof(uint32_t));
+ sizeof(uint32_t),
+ 0);
if (ret < 0) {
goto exit;
}
@@ -802,7 +805,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
s->metadata_entries.phys_sector_size_entry.offset
+ s->metadata_rt.file_offset,
&s->physical_sector_size,
- sizeof(uint32_t));
+ sizeof(uint32_t),
+ 0);
if (ret < 0) {
goto exit;
}
@@ -1010,7 +1014,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
QLIST_INIT(&s->regions);
/* validate the file signature */
- ret = bdrv_pread(bs->file, 0, &signature, sizeof(uint64_t));
+ ret = bdrv_pread(bs->file, 0, &signature, sizeof(uint64_t), 0);
if (ret < 0) {
goto fail;
}
@@ -1069,7 +1073,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, s->bat_offset, s->bat, s->bat_rt.length);
+ ret = bdrv_pread(bs->file, s->bat_offset, s->bat, s->bat_rt.length, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/vmdk.c b/block/vmdk.c
index 38e5ab3806..4ad09ca07b 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -307,7 +307,7 @@ static int vmdk_read_cid(BlockDriverState *bs, int parent, uint32_t *pcid)
int ret;
desc = g_malloc0(DESC_SIZE);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
if (ret < 0) {
goto out;
}
@@ -348,7 +348,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
desc = g_malloc0(DESC_SIZE);
tmp_desc = g_malloc0(DESC_SIZE);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
if (ret < 0) {
goto out;
}
@@ -368,7 +368,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
pstrcat(desc, DESC_SIZE, tmp_desc);
}
- ret = bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE);
+ ret = bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
out:
g_free(desc);
@@ -469,7 +469,7 @@ static int vmdk_parent_open(BlockDriverState *bs)
int ret;
desc = g_malloc0(DESC_SIZE + 1);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
if (ret < 0) {
goto out;
}
@@ -589,10 +589,8 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent,
return -ENOMEM;
}
- ret = bdrv_pread(extent->file,
- extent->l1_table_offset,
- extent->l1_table,
- l1_size);
+ ret = bdrv_pread(extent->file, extent->l1_table_offset, extent->l1_table,
+ l1_size, 0);
if (ret < 0) {
bdrv_refresh_filename(extent->file->bs);
error_setg_errno(errp, -ret,
@@ -616,10 +614,8 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent,
ret = -ENOMEM;
goto fail_l1;
}
- ret = bdrv_pread(extent->file,
- extent->l1_backup_table_offset,
- extent->l1_backup_table,
- l1_size);
+ ret = bdrv_pread(extent->file, extent->l1_backup_table_offset,
+ extent->l1_backup_table, l1_size, 0);
if (ret < 0) {
bdrv_refresh_filename(extent->file->bs);
error_setg_errno(errp, -ret,
@@ -651,7 +647,7 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
VMDK3Header header;
VmdkExtent *extent = NULL;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header));
+ ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header), 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -815,7 +811,7 @@ static int vmdk_open_se_sparse(BlockDriverState *bs,
assert(sizeof(const_header) == SECTOR_SIZE);
- ret = bdrv_pread(file, 0, &const_header, sizeof(const_header));
+ ret = bdrv_pread(file, 0, &const_header, sizeof(const_header), 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -832,9 +828,8 @@ static int vmdk_open_se_sparse(BlockDriverState *bs,
assert(sizeof(volatile_header) == SECTOR_SIZE);
- ret = bdrv_pread(file,
- const_header.volatile_header_offset * SECTOR_SIZE,
- &volatile_header, sizeof(volatile_header));
+ ret = bdrv_pread(file, const_header.volatile_header_offset * SECTOR_SIZE,
+ &volatile_header, sizeof(volatile_header), 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -904,7 +899,7 @@ static char *vmdk_read_desc(BdrvChild *file, uint64_t desc_offset, Error **errp)
size = MIN(size, (1 << 20) - 1); /* avoid unbounded allocation */
buf = g_malloc(size + 1);
- ret = bdrv_pread(file, desc_offset, buf, size);
+ ret = bdrv_pread(file, desc_offset, buf, size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read from file");
g_free(buf);
@@ -928,7 +923,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
int64_t l1_backup_offset = 0;
bool compressed;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header));
+ ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header), 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -979,9 +974,8 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
} QEMU_PACKED eos_marker;
} QEMU_PACKED footer;
- ret = bdrv_pread(file,
- bs->file->bs->total_sectors * 512 - 1536,
- &footer, sizeof(footer));
+ ret = bdrv_pread(file, bs->file->bs->total_sectors * 512 - 1536,
+ &footer, sizeof(footer), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read footer");
return ret;
@@ -1449,7 +1443,7 @@ static int get_whole_cluster(BlockDriverState *bs,
/* qcow2 emits this on bs->file instead of bs->backing */
BLKDBG_EVENT(extent->file, BLKDBG_COW_READ);
ret = bdrv_pread(bs->backing, offset, whole_grain,
- skip_start_bytes);
+ skip_start_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1457,7 +1451,7 @@ static int get_whole_cluster(BlockDriverState *bs,
}
BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE);
ret = bdrv_pwrite(extent->file, cluster_offset, whole_grain,
- skip_start_bytes);
+ skip_start_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1470,7 +1464,7 @@ static int get_whole_cluster(BlockDriverState *bs,
BLKDBG_EVENT(extent->file, BLKDBG_COW_READ);
ret = bdrv_pread(bs->backing, offset + skip_end_bytes,
whole_grain + skip_end_bytes,
- cluster_bytes - skip_end_bytes);
+ cluster_bytes - skip_end_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1479,7 +1473,7 @@ static int get_whole_cluster(BlockDriverState *bs,
BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE);
ret = bdrv_pwrite(extent->file, cluster_offset + skip_end_bytes,
whole_grain + skip_end_bytes,
- cluster_bytes - skip_end_bytes);
+ cluster_bytes - skip_end_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1501,7 +1495,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data,
if (bdrv_pwrite(extent->file,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
- &offset, sizeof(offset)) < 0) {
+ &offset, sizeof(offset), 0) < 0) {
return VMDK_ERROR;
}
/* update backup L2 table */
@@ -1510,7 +1504,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data,
if (bdrv_pwrite(extent->file,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
- &offset, sizeof(offset)) < 0) {
+ &offset, sizeof(offset), 0) < 0) {
return VMDK_ERROR;
}
}
@@ -1634,7 +1628,8 @@ static int get_cluster_offset(BlockDriverState *bs,
if (bdrv_pread(extent->file,
(int64_t)l2_offset * 512,
l2_table,
- l2_size_bytes
+ l2_size_bytes,
+ 0
) != l2_size_bytes) {
return VMDK_ERROR;
}
@@ -1903,9 +1898,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset,
cluster_buf = g_malloc(buf_bytes);
uncomp_buf = g_malloc(cluster_bytes);
BLKDBG_EVENT(extent->file, BLKDBG_READ_COMPRESSED);
- ret = bdrv_pread(extent->file,
- cluster_offset,
- cluster_buf, buf_bytes);
+ ret = bdrv_pread(extent->file, cluster_offset, cluster_buf, buf_bytes, 0);
if (ret < 0) {
goto out;
}
diff --git a/block/vpc.c b/block/vpc.c
index 4d8f16e199..1ccdfb0557 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -252,7 +252,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, &s->footer, sizeof(s->footer));
+ ret = bdrv_pread(bs->file, 0, &s->footer, sizeof(s->footer), 0);
if (ret < 0) {
error_setg(errp, "Unable to read VHD header");
goto fail;
@@ -272,8 +272,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
}
/* If a fixed disk, the footer is found only at the end of the file */
- ret = bdrv_pread(bs->file, offset - sizeof(*footer),
- footer, sizeof(*footer));
+ ret = bdrv_pread(bs->file, offset - sizeof(*footer), footer,
+ sizeof(*footer), 0);
if (ret < 0) {
goto fail;
}
@@ -347,7 +347,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
if (disk_type == VHD_DYNAMIC) {
ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset),
- &dyndisk_header, sizeof(dyndisk_header));
+ &dyndisk_header, sizeof(dyndisk_header), 0);
if (ret < 0) {
error_setg(errp, "Error reading dynamic VHD header");
goto fail;
@@ -402,7 +402,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
s->bat_offset = be64_to_cpu(dyndisk_header.table_offset);
ret = bdrv_pread(bs->file, s->bat_offset, s->pagetable,
- pagetable_size);
+ pagetable_size, 0);
if (ret < 0) {
error_setg(errp, "Error reading pagetable");
goto fail;
@@ -516,7 +516,8 @@ static inline int64_t get_image_offset(BlockDriverState *bs, uint64_t offset,
s->last_bitmap_offset = bitmap_offset;
memset(bitmap, 0xff, s->bitmap_size);
- r = bdrv_pwrite_sync(bs->file, bitmap_offset, bitmap, s->bitmap_size);
+ r = bdrv_pwrite_sync(bs->file, bitmap_offset, bitmap, s->bitmap_size,
+ 0);
if (r < 0) {
*err = r;
return -2;
@@ -538,7 +539,7 @@ static int rewrite_footer(BlockDriverState *bs)
BDRVVPCState *s = bs->opaque;
int64_t offset = s->free_data_block_offset;
- ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, sizeof(s->footer));
+ ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, sizeof(s->footer), 0);
if (ret < 0)
return ret;
@@ -573,7 +574,7 @@ static int64_t alloc_block(BlockDriverState *bs, int64_t offset)
/* Initialize the block's bitmap */
memset(bitmap, 0xff, s->bitmap_size);
ret = bdrv_pwrite_sync(bs->file, s->free_data_block_offset, bitmap,
- s->bitmap_size);
+ s->bitmap_size, 0);
if (ret < 0) {
return ret;
}
@@ -587,7 +588,7 @@ static int64_t alloc_block(BlockDriverState *bs, int64_t offset)
/* Write BAT entry to disk */
bat_offset = s->bat_offset + (4 * index);
bat_value = cpu_to_be32(s->pagetable[index]);
- ret = bdrv_pwrite_sync(bs->file, bat_offset, &bat_value, 4);
+ ret = bdrv_pwrite_sync(bs->file, bat_offset, &bat_value, 4, 0);
if (ret < 0)
goto fail;
diff --git a/block/vvfat.c b/block/vvfat.c
index b2b58d93b8..87595dfc69 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1489,7 +1489,7 @@ static int vvfat_read(BlockDriverState *bs, int64_t sector_num,
" allocated\n", sector_num,
n >> BDRV_SECTOR_BITS));
if (bdrv_pread(s->qcow, sector_num * BDRV_SECTOR_SIZE,
- buf + i * 0x200, n) < 0) {
+ buf + i * 0x200, n, 0) < 0) {
return -1;
}
i += (n >> BDRV_SECTOR_BITS) - 1;
@@ -1978,7 +1978,8 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s,
return -1;
}
res = bdrv_pwrite(s->qcow, offset * BDRV_SECTOR_SIZE,
- s->cluster_buffer, BDRV_SECTOR_SIZE);
+ s->cluster_buffer, BDRV_SECTOR_SIZE,
+ 0);
if (res < 0) {
return -2;
}
@@ -3063,7 +3064,7 @@ DLOG(checkpoint());
*/
DLOG(fprintf(stderr, "Write to qcow backend: %d + %d\n", (int)sector_num, nb_sectors));
ret = bdrv_pwrite(s->qcow, sector_num * BDRV_SECTOR_SIZE, buf,
- nb_sectors * BDRV_SECTOR_SIZE);
+ nb_sectors * BDRV_SECTOR_SIZE, 0);
if (ret < 0) {
fprintf(stderr, "Error writing to qcow backend\n");
return ret;
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 94718c9319..4db1ad5dfe 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -88,11 +88,11 @@ static void test_sync_op_pread(BdrvChild *c)
int ret;
/* Success */
- ret = bdrv_pread(c, 0, buf, sizeof(buf));
+ ret = bdrv_pread(c, 0, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, 512);
/* Early error: Negative offset */
- ret = bdrv_pread(c, -2, buf, sizeof(buf));
+ ret = bdrv_pread(c, -2, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, -EIO);
}
@@ -102,11 +102,11 @@ static void test_sync_op_pwrite(BdrvChild *c)
int ret;
/* Success */
- ret = bdrv_pwrite(c, 0, buf, sizeof(buf));
+ ret = bdrv_pwrite(c, 0, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, 512);
/* Early error: Negative offset */
- ret = bdrv_pwrite(c, -2, buf, sizeof(buf));
+ ret = bdrv_pwrite(c, -2, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, -EIO);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 02/35] block: Change bdrv_{pread, pwrite, pwrite_sync}() param order
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
2022-07-12 18:05 ` [PULL 01/35] block: Add a 'flags' param to bdrv_{pread, pwrite, pwrite_sync}() Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 03/35] block: Make bdrv_{pread,pwrite}() return 0 on success Hanna Reitz
` (33 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Swap 'buf' and 'bytes' around for consistency with
bdrv_co_{pread,pwrite}(), and in preparation to implement these
functions using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression child, offset, buf, bytes, flags; @@
- bdrv_pread(child, offset, buf, bytes, flags)
+ bdrv_pread(child, offset, bytes, buf, flags)
@@ expression child, offset, buf, bytes, flags; @@
- bdrv_pwrite(child, offset, buf, bytes, flags)
+ bdrv_pwrite(child, offset, bytes, buf, flags)
@@ expression child, offset, buf, bytes, flags; @@
- bdrv_pwrite_sync(child, offset, buf, bytes, flags)
+ bdrv_pwrite_sync(child, offset, bytes, buf, flags)
Resulting overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20220609152744.3891847-3-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/block/block-io.h | 10 +++---
block/blklogwrites.c | 6 ++--
block/bochs.c | 10 +++---
block/cloop.c | 10 +++---
block/crypto.c | 4 +--
block/dmg.c | 26 +++++++--------
block/io.c | 12 +++----
block/parallels-ext.c | 6 ++--
block/parallels.c | 10 +++---
block/qcow.c | 34 +++++++++----------
block/qcow2-bitmap.c | 14 ++++----
block/qcow2-cache.c | 8 ++---
block/qcow2-cluster.c | 22 ++++++-------
block/qcow2-refcount.c | 56 +++++++++++++++++---------------
block/qcow2-snapshot.c | 48 +++++++++++++--------------
block/qcow2.c | 47 ++++++++++++++-------------
block/qed.c | 8 ++---
block/vdi.c | 14 ++++----
block/vhdx-log.c | 18 +++++-----
block/vhdx.c | 28 ++++++++--------
block/vmdk.c | 50 ++++++++++++++--------------
block/vpc.c | 22 ++++++-------
block/vvfat.c | 10 +++---
tests/unit/test-block-iothread.c | 8 ++---
24 files changed, 242 insertions(+), 239 deletions(-)
diff --git a/include/block/block-io.h b/include/block/block-io.h
index 1a02d235f8..ecce56c096 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -42,12 +42,12 @@
int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags);
-int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes,
+int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
BdrvRequestFlags flags);
-int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
- int64_t bytes, BdrvRequestFlags flags);
-int bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
- const void *buf, int64_t bytes, BdrvRequestFlags flags);
+int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags);
+int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags);
/*
* Efficiently zero a region of the disk image. Note that this is a regular
* I/O request like read or write and should have a reasonable size. This
diff --git a/block/blklogwrites.c b/block/blklogwrites.c
index c5c021e6f8..e3c6c4039c 100644
--- a/block/blklogwrites.c
+++ b/block/blklogwrites.c
@@ -107,8 +107,8 @@ static uint64_t blk_log_writes_find_cur_log_sector(BdrvChild *log,
struct log_write_entry cur_entry;
while (cur_idx < nr_entries) {
- int read_ret = bdrv_pread(log, cur_sector << sector_bits, &cur_entry,
- sizeof(cur_entry), 0);
+ int read_ret = bdrv_pread(log, cur_sector << sector_bits,
+ sizeof(cur_entry), &cur_entry, 0);
if (read_ret < 0) {
error_setg_errno(errp, -read_ret,
"Failed to read log entry %"PRIu64, cur_idx);
@@ -190,7 +190,7 @@ static int blk_log_writes_open(BlockDriverState *bs, QDict *options, int flags,
log_sb.nr_entries = cpu_to_le64(0);
log_sb.sectorsize = cpu_to_le32(BDRV_SECTOR_SIZE);
} else {
- ret = bdrv_pread(s->log_file, 0, &log_sb, sizeof(log_sb), 0);
+ ret = bdrv_pread(s->log_file, 0, sizeof(log_sb), &log_sb, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read log superblock");
goto fail_log;
diff --git a/block/bochs.c b/block/bochs.c
index 46d0f6a693..b76f34fe03 100644
--- a/block/bochs.c
+++ b/block/bochs.c
@@ -116,7 +116,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(bochs), &bochs, 0);
if (ret < 0) {
return ret;
}
@@ -150,8 +150,8 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap,
- s->catalog_size * 4, 0);
+ ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_size * 4,
+ s->catalog_bitmap, 0);
if (ret < 0) {
goto fail;
}
@@ -224,8 +224,8 @@ static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num)
(s->extent_blocks + s->bitmap_blocks));
/* read in bitmap for current extent */
- ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8),
- &bitmap_entry, 1, 0);
+ ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8), 1,
+ &bitmap_entry, 0);
if (ret < 0) {
return ret;
}
diff --git a/block/cloop.c b/block/cloop.c
index 208a58ebb1..9a2334495e 100644
--- a/block/cloop.c
+++ b/block/cloop.c
@@ -78,7 +78,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
}
/* read header */
- ret = bdrv_pread(bs->file, 128, &s->block_size, 4, 0);
+ ret = bdrv_pread(bs->file, 128, 4, &s->block_size, 0);
if (ret < 0) {
return ret;
}
@@ -104,7 +104,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4, 0);
+ ret = bdrv_pread(bs->file, 128 + 4, 4, &s->n_blocks, 0);
if (ret < 0) {
return ret;
}
@@ -135,7 +135,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size, 0);
+ ret = bdrv_pread(bs->file, 128 + 4 + 4, offsets_size, s->offsets, 0);
if (ret < 0) {
goto fail;
}
@@ -220,8 +220,8 @@ static inline int cloop_read_block(BlockDriverState *bs, int block_num)
int ret;
uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num];
- ret = bdrv_pread(bs->file, s->offsets[block_num], s->compressed_block,
- bytes, 0);
+ ret = bdrv_pread(bs->file, s->offsets[block_num], bytes,
+ s->compressed_block, 0);
if (ret != bytes) {
return -1;
}
diff --git a/block/crypto.c b/block/crypto.c
index d0c22e9549..deec7fae2f 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -65,7 +65,7 @@ static ssize_t block_crypto_read_func(QCryptoBlock *block,
BlockDriverState *bs = opaque;
ssize_t ret;
- ret = bdrv_pread(bs->file, offset, buf, buflen, 0);
+ ret = bdrv_pread(bs->file, offset, buflen, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
return ret;
@@ -83,7 +83,7 @@ static ssize_t block_crypto_write_func(QCryptoBlock *block,
BlockDriverState *bs = opaque;
ssize_t ret;
- ret = bdrv_pwrite(bs->file, offset, buf, buflen, 0);
+ ret = bdrv_pwrite(bs->file, offset, buflen, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
diff --git a/block/dmg.c b/block/dmg.c
index ddd1d23005..5a460c3eb1 100644
--- a/block/dmg.c
+++ b/block/dmg.c
@@ -77,7 +77,7 @@ static int read_uint64(BlockDriverState *bs, int64_t offset, uint64_t *result)
uint64_t buffer;
int ret;
- ret = bdrv_pread(bs->file, offset, &buffer, 8, 0);
+ ret = bdrv_pread(bs->file, offset, 8, &buffer, 0);
if (ret < 0) {
return ret;
}
@@ -91,7 +91,7 @@ static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result)
uint32_t buffer;
int ret;
- ret = bdrv_pread(bs->file, offset, &buffer, 4, 0);
+ ret = bdrv_pread(bs->file, offset, 4, &buffer, 0);
if (ret < 0) {
return ret;
}
@@ -172,7 +172,7 @@ static int64_t dmg_find_koly_offset(BdrvChild *file, Error **errp)
offset = length - 511 - 512;
}
length = length < 515 ? length : 515;
- ret = bdrv_pread(file, offset, buffer, length, 0);
+ ret = bdrv_pread(file, offset, length, buffer, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed while reading UDIF trailer");
return ret;
@@ -352,7 +352,7 @@ static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds,
offset += 4;
buffer = g_realloc(buffer, count);
- ret = bdrv_pread(bs->file, offset, buffer, count, 0);
+ ret = bdrv_pread(bs->file, offset, count, buffer, 0);
if (ret < 0) {
goto fail;
}
@@ -389,7 +389,7 @@ static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
buffer = g_malloc(info_length + 1);
buffer[info_length] = '\0';
- ret = bdrv_pread(bs->file, info_begin, buffer, info_length, 0);
+ ret = bdrv_pread(bs->file, info_begin, info_length, buffer, 0);
if (ret != info_length) {
ret = -EINVAL;
goto fail;
@@ -609,8 +609,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
case UDZO: { /* zlib compressed */
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
- s->lengths[chunk], 0);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
+ s->compressed_chunk, 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -635,8 +635,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
}
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
- s->lengths[chunk], 0);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
+ s->compressed_chunk, 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -656,8 +656,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
}
/* we need to buffer, because only the chunk as whole can be
* inflated. */
- ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk,
- s->lengths[chunk], 0);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
+ s->compressed_chunk, 0);
if (ret != s->lengths[chunk]) {
return -1;
}
@@ -672,8 +672,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
}
break;
case UDRW: /* copy */
- ret = bdrv_pread(bs->file, s->offsets[chunk],
- s->uncompressed_chunk, s->lengths[chunk], 0);
+ ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
+ s->uncompressed_chunk, 0);
if (ret != s->lengths[chunk]) {
return -1;
}
diff --git a/block/io.c b/block/io.c
index b965efa871..d4a39b5569 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1097,7 +1097,7 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
}
/* See bdrv_pwrite() for the return codes */
-int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes,
+int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
BdrvRequestFlags flags)
{
int ret;
@@ -1119,8 +1119,8 @@ int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int64_t bytes,
-EINVAL Invalid offset or number of bytes
-EACCES Trying to write a read-only device
*/
-int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
- int64_t bytes, BdrvRequestFlags flags)
+int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags)
{
int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
@@ -1141,13 +1141,13 @@ int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf,
*
* Returns 0 on success, -errno in error cases.
*/
-int bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
- const void *buf, int64_t count, BdrvRequestFlags flags)
+int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags)
{
int ret;
IO_CODE();
- ret = bdrv_pwrite(child, offset, buf, count, flags);
+ ret = bdrv_pwrite(child, offset, bytes, buf, flags);
if (ret < 0) {
return ret;
}
diff --git a/block/parallels-ext.c b/block/parallels-ext.c
index f737104d12..c9dbbf5089 100644
--- a/block/parallels-ext.c
+++ b/block/parallels-ext.c
@@ -93,8 +93,8 @@ static int parallels_load_bitmap_data(BlockDriverState *bs,
if (entry == 1) {
bdrv_dirty_bitmap_deserialize_ones(bitmap, offset, count, false);
} else {
- ret = bdrv_pread(bs->file, entry << BDRV_SECTOR_BITS, buf,
- s->cluster_size, 0);
+ ret = bdrv_pread(bs->file, entry << BDRV_SECTOR_BITS,
+ s->cluster_size, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Failed to read bitmap data cluster");
@@ -286,7 +286,7 @@ int parallels_read_format_extension(BlockDriverState *bs,
assert(ext_off > 0);
- ret = bdrv_pread(bs->file, ext_off, ext_cluster, s->cluster_size, 0);
+ ret = bdrv_pread(bs->file, ext_off, s->cluster_size, ext_cluster, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read Format Extension cluster");
goto out;
diff --git a/block/parallels.c b/block/parallels.c
index 6ab82764b2..f22444efff 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -277,7 +277,7 @@ static coroutine_fn int parallels_co_flush_to_os(BlockDriverState *bs)
if (off + to_write > s->header_size) {
to_write = s->header_size - off;
}
- ret = bdrv_pwrite(bs->file, off, (uint8_t *)s->header + off, to_write,
+ ret = bdrv_pwrite(bs->file, off, to_write, (uint8_t *)s->header + off,
0);
if (ret < 0) {
qemu_co_mutex_unlock(&s->lock);
@@ -481,7 +481,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs,
ret = 0;
if (flush_bat) {
- ret = bdrv_pwrite_sync(bs->file, 0, s->header, s->header_size, 0);
+ ret = bdrv_pwrite_sync(bs->file, 0, s->header_size, s->header, 0);
if (ret < 0) {
res->check_errors++;
goto out;
@@ -723,7 +723,7 @@ static int parallels_update_header(BlockDriverState *bs)
if (size > s->header_size) {
size = s->header_size;
}
- return bdrv_pwrite_sync(bs->file, 0, s->header, size, 0);
+ return bdrv_pwrite_sync(bs->file, 0, size, s->header, 0);
}
static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
@@ -742,7 +742,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(ph), &ph, 0);
if (ret < 0) {
goto fail;
}
@@ -798,7 +798,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
s->header_size = size;
}
- ret = bdrv_pread(bs->file, 0, s->header, s->header_size, 0);
+ ret = bdrv_pread(bs->file, 0, s->header_size, s->header, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/qcow.c b/block/qcow.c
index 20fb94c18b..c94524b814 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -128,7 +128,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(header), &header, 0);
if (ret < 0) {
goto fail;
}
@@ -260,8 +260,8 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
- s->l1_size * sizeof(uint64_t), 0);
+ ret = bdrv_pread(bs->file, s->l1_table_offset,
+ s->l1_size * sizeof(uint64_t), s->l1_table, 0);
if (ret < 0) {
goto fail;
}
@@ -291,8 +291,8 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
ret = -EINVAL;
goto fail;
}
- ret = bdrv_pread(bs->file, header.backing_file_offset,
- bs->auto_backing_file, len, 0);
+ ret = bdrv_pread(bs->file, header.backing_file_offset, len,
+ bs->auto_backing_file, 0);
if (ret < 0) {
goto fail;
}
@@ -383,7 +383,7 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);
ret = bdrv_pwrite_sync(bs->file,
s->l1_table_offset + l1_index * sizeof(tmp),
- &tmp, sizeof(tmp), 0);
+ sizeof(tmp), &tmp, 0);
if (ret < 0) {
return ret;
}
@@ -414,14 +414,14 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_L2_LOAD);
if (new_l2_table) {
memset(l2_table, 0, s->l2_size * sizeof(uint64_t));
- ret = bdrv_pwrite_sync(bs->file, l2_offset, l2_table,
- s->l2_size * sizeof(uint64_t), 0);
+ ret = bdrv_pwrite_sync(bs->file, l2_offset,
+ s->l2_size * sizeof(uint64_t), l2_table, 0);
if (ret < 0) {
return ret;
}
} else {
- ret = bdrv_pread(bs->file, l2_offset, l2_table,
- s->l2_size * sizeof(uint64_t), 0);
+ ret = bdrv_pread(bs->file, l2_offset, s->l2_size * sizeof(uint64_t),
+ l2_table, 0);
if (ret < 0) {
return ret;
}
@@ -453,8 +453,8 @@ static int get_cluster_offset(BlockDriverState *bs,
cluster_offset = QEMU_ALIGN_UP(cluster_offset, s->cluster_size);
/* write the cluster content */
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
- ret = bdrv_pwrite(bs->file, cluster_offset, s->cluster_cache,
- s->cluster_size, 0);
+ ret = bdrv_pwrite(bs->file, cluster_offset, s->cluster_size,
+ s->cluster_cache, 0);
if (ret < 0) {
return ret;
}
@@ -493,8 +493,8 @@ static int get_cluster_offset(BlockDriverState *bs,
}
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
ret = bdrv_pwrite(bs->file, cluster_offset + i,
- s->cluster_data,
- BDRV_SECTOR_SIZE, 0);
+ BDRV_SECTOR_SIZE,
+ s->cluster_data, 0);
if (ret < 0) {
return ret;
}
@@ -515,7 +515,7 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE);
}
ret = bdrv_pwrite_sync(bs->file, l2_offset + l2_index * sizeof(tmp),
- &tmp, sizeof(tmp), 0);
+ sizeof(tmp), &tmp, 0);
if (ret < 0) {
return ret;
}
@@ -596,7 +596,7 @@ static int decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
csize = cluster_offset >> (63 - s->cluster_bits);
csize &= (s->cluster_size - 1);
BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED);
- ret = bdrv_pread(bs->file, coffset, s->cluster_data, csize, 0);
+ ret = bdrv_pread(bs->file, coffset, csize, s->cluster_data, 0);
if (ret != csize)
return -1;
if (decompress_buffer(s->cluster_cache, s->cluster_size,
@@ -1029,7 +1029,7 @@ static int qcow_make_empty(BlockDriverState *bs)
int ret;
memset(s->l1_table, 0, l1_length);
- if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table, l1_length,
+ if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, l1_length, s->l1_table,
0) < 0)
return -1;
ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, false,
diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c
index 6aa4739820..e98bafe0f4 100644
--- a/block/qcow2-bitmap.c
+++ b/block/qcow2-bitmap.c
@@ -234,8 +234,8 @@ static int bitmap_table_load(BlockDriverState *bs, Qcow2BitmapTable *tb,
}
assert(tb->size <= BME_MAX_TABLE_SIZE);
- ret = bdrv_pread(bs->file, tb->offset, table,
- tb->size * BME_TABLE_ENTRY_SIZE, 0);
+ ret = bdrv_pread(bs->file, tb->offset, tb->size * BME_TABLE_ENTRY_SIZE,
+ table, 0);
if (ret < 0) {
goto fail;
}
@@ -317,7 +317,7 @@ static int load_bitmap_data(BlockDriverState *bs,
* already cleared */
}
} else {
- ret = bdrv_pread(bs->file, data_offset, buf, s->cluster_size, 0);
+ ret = bdrv_pread(bs->file, data_offset, s->cluster_size, buf, 0);
if (ret < 0) {
goto finish;
}
@@ -575,7 +575,7 @@ static Qcow2BitmapList *bitmap_list_load(BlockDriverState *bs, uint64_t offset,
}
dir_end = dir + size;
- ret = bdrv_pread(bs->file, offset, dir, size, 0);
+ ret = bdrv_pread(bs->file, offset, size, dir, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read bitmap directory");
goto fail;
@@ -798,7 +798,7 @@ static int bitmap_list_store(BlockDriverState *bs, Qcow2BitmapList *bm_list,
goto fail;
}
- ret = bdrv_pwrite(bs->file, dir_offset, dir, dir_size, 0);
+ ret = bdrv_pwrite(bs->file, dir_offset, dir_size, dir, 0);
if (ret < 0) {
goto fail;
}
@@ -1339,7 +1339,7 @@ static uint64_t *store_bitmap_data(BlockDriverState *bs,
goto fail;
}
- ret = bdrv_pwrite(bs->file, off, buf, s->cluster_size, 0);
+ ret = bdrv_pwrite(bs->file, off, s->cluster_size, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write bitmap '%s' to file",
bm_name);
@@ -1402,7 +1402,7 @@ static int store_bitmap(BlockDriverState *bs, Qcow2Bitmap *bm, Error **errp)
}
bitmap_table_to_be(tb, tb_size);
- ret = bdrv_pwrite(bs->file, tb_offset, tb, tb_size * sizeof(tb[0]), 0);
+ ret = bdrv_pwrite(bs->file, tb_offset, tb_size * sizeof(tb[0]), tb, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write bitmap '%s' to file",
bm_name);
diff --git a/block/qcow2-cache.c b/block/qcow2-cache.c
index e562e00c5c..54b2d5f4de 100644
--- a/block/qcow2-cache.c
+++ b/block/qcow2-cache.c
@@ -223,8 +223,8 @@ static int qcow2_cache_entry_flush(BlockDriverState *bs, Qcow2Cache *c, int i)
BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE);
}
- ret = bdrv_pwrite(bs->file, c->entries[i].offset,
- qcow2_cache_get_table_addr(c, i), c->table_size, 0);
+ ret = bdrv_pwrite(bs->file, c->entries[i].offset, c->table_size,
+ qcow2_cache_get_table_addr(c, i), 0);
if (ret < 0) {
return ret;
}
@@ -379,8 +379,8 @@ static int qcow2_cache_do_get(BlockDriverState *bs, Qcow2Cache *c,
BLKDBG_EVENT(bs->file, BLKDBG_L2_LOAD);
}
- ret = bdrv_pread(bs->file, offset, qcow2_cache_get_table_addr(c, i),
- c->table_size, 0);
+ ret = bdrv_pread(bs->file, offset, c->table_size,
+ qcow2_cache_get_table_addr(c, i), 0);
if (ret < 0) {
return ret;
}
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index ad7107a795..fd32316d6f 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -159,8 +159,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_WRITE_TABLE);
for(i = 0; i < s->l1_size; i++)
new_l1_table[i] = cpu_to_be64(new_l1_table[i]);
- ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset, new_l1_table,
- new_l1_size2, 0);
+ ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset, new_l1_size2,
+ new_l1_table, 0);
if (ret < 0)
goto fail;
for(i = 0; i < s->l1_size; i++)
@@ -170,8 +170,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE);
stl_be_p(data, new_l1_size);
stq_be_p(data + 4, new_l1_table_offset);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), data,
- sizeof(data), 0);
+ ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size),
+ sizeof(data), data, 0);
if (ret < 0) {
goto fail;
}
@@ -249,7 +249,7 @@ int qcow2_write_l1_entry(BlockDriverState *bs, int l1_index)
BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);
ret = bdrv_pwrite_sync(bs->file,
s->l1_table_offset + L1E_SIZE * l1_start_index,
- buf, bufsize, 0);
+ bufsize, buf, 0);
if (ret < 0) {
return ret;
}
@@ -2260,8 +2260,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
(void **)&l2_slice);
} else {
/* load inactive L2 tables from disk */
- ret = bdrv_pread(bs->file, slice_offset, l2_slice,
- slice_size2, 0);
+ ret = bdrv_pread(bs->file, slice_offset, slice_size2,
+ l2_slice, 0);
}
if (ret < 0) {
goto fail;
@@ -2377,8 +2377,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
goto fail;
}
- ret = bdrv_pwrite(bs->file, slice_offset, l2_slice,
- slice_size2, 0);
+ ret = bdrv_pwrite(bs->file, slice_offset, slice_size2,
+ l2_slice, 0);
if (ret < 0) {
goto fail;
}
@@ -2471,8 +2471,8 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs,
l1_table = new_l1_table;
- ret = bdrv_pread(bs->file, s->snapshots[i].l1_table_offset, l1_table,
- l1_size2, 0);
+ ret = bdrv_pread(bs->file, s->snapshots[i].l1_table_offset, l1_size2,
+ l1_table, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 5aa2b61b6c..c4d99817b6 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -119,7 +119,7 @@ int qcow2_refcount_init(BlockDriverState *bs)
}
BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_LOAD);
ret = bdrv_pread(bs->file, s->refcount_table_offset,
- s->refcount_table, refcount_table_size2, 0);
+ refcount_table_size2, s->refcount_table, 0);
if (ret < 0) {
goto fail;
}
@@ -439,7 +439,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_HOOKUP);
ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset +
refcount_table_index * REFTABLE_ENTRY_SIZE,
- &data64, sizeof(data64), 0);
+ sizeof(data64), &data64, 0);
if (ret < 0) {
goto fail;
}
@@ -684,8 +684,8 @@ int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset,
}
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE);
- ret = bdrv_pwrite_sync(bs->file, table_offset, new_table,
- table_size * REFTABLE_ENTRY_SIZE, 0);
+ ret = bdrv_pwrite_sync(bs->file, table_offset,
+ table_size * REFTABLE_ENTRY_SIZE, new_table, 0);
if (ret < 0) {
goto fail;
}
@@ -703,8 +703,8 @@ int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset,
data.d32 = cpu_to_be32(table_clusters);
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE);
ret = bdrv_pwrite_sync(bs->file,
- offsetof(QCowHeader, refcount_table_offset), &data,
- sizeof(data), 0);
+ offsetof(QCowHeader, refcount_table_offset),
+ sizeof(data), &data, 0);
if (ret < 0) {
goto fail;
}
@@ -1274,7 +1274,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
}
l1_allocated = true;
- ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2, 0);
+ ret = bdrv_pread(bs->file, l1_table_offset, l1_size2, l1_table, 0);
if (ret < 0) {
goto fail;
}
@@ -1435,7 +1435,7 @@ fail:
cpu_to_be64s(&l1_table[i]);
}
- ret = bdrv_pwrite_sync(bs->file, l1_table_offset, l1_table, l1_size2,
+ ret = bdrv_pwrite_sync(bs->file, l1_table_offset, l1_size2, l1_table,
0);
for (i = 0; i < l1_size; i++) {
@@ -1633,8 +1633,8 @@ static int fix_l2_entry_by_zero(BlockDriverState *bs, BdrvCheckResult *res,
goto fail;
}
- ret = bdrv_pwrite_sync(bs->file, l2e_offset, &l2_table[idx],
- l2_entry_size(s), 0);
+ ret = bdrv_pwrite_sync(bs->file, l2e_offset, l2_entry_size(s),
+ &l2_table[idx], 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Failed to overwrite L2 "
"table entry: %s\n", strerror(-ret));
@@ -1672,7 +1672,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res,
bool metadata_overlap;
/* Read L2 table from disk */
- ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size_bytes, 0);
+ ret = bdrv_pread(bs->file, l2_offset, l2_size_bytes, l2_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n");
res->check_errors++;
@@ -1888,7 +1888,7 @@ static int check_refcounts_l1(BlockDriverState *bs,
}
/* Read L1 table entries from disk */
- ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size_bytes, 0);
+ ret = bdrv_pread(bs->file, l1_table_offset, l1_size_bytes, l1_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l1\n");
res->check_errors++;
@@ -2004,8 +2004,8 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
}
}
- ret = bdrv_pread(bs->file, l2_offset, l2_table,
- s->l2_size * l2_entry_size(s), 0);
+ ret = bdrv_pread(bs->file, l2_offset, s->l2_size * l2_entry_size(s),
+ l2_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not read L2 table: %s\n",
strerror(-ret));
@@ -2058,7 +2058,7 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
goto fail;
}
- ret = bdrv_pwrite(bs->file, l2_offset, l2_table, s->cluster_size,
+ ret = bdrv_pwrite(bs->file, l2_offset, s->cluster_size, l2_table,
0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not write L2 table: %s\n",
@@ -2577,8 +2577,8 @@ static int rebuild_refcounts_write_refblocks(
on_disk_refblock = (void *)((char *) *refcount_table +
refblock_index * s->cluster_size);
- ret = bdrv_pwrite(bs->file, refblock_offset, on_disk_refblock,
- s->cluster_size, 0);
+ ret = bdrv_pwrite(bs->file, refblock_offset, s->cluster_size,
+ on_disk_refblock, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing refblock");
return ret;
@@ -2733,8 +2733,8 @@ static int rebuild_refcount_structure(BlockDriverState *bs,
}
assert(reftable_length < INT_MAX);
- ret = bdrv_pwrite(bs->file, reftable_offset, on_disk_reftable,
- reftable_length, 0);
+ ret = bdrv_pwrite(bs->file, reftable_offset, reftable_length,
+ on_disk_reftable, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing reftable");
goto fail;
@@ -2746,8 +2746,8 @@ static int rebuild_refcount_structure(BlockDriverState *bs,
cpu_to_be32(reftable_clusters);
ret = bdrv_pwrite_sync(bs->file,
offsetof(QCowHeader, refcount_table_offset),
- &reftable_offset_and_clusters,
- sizeof(reftable_offset_and_clusters), 0);
+ sizeof(reftable_offset_and_clusters),
+ &reftable_offset_and_clusters, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR setting reftable");
goto fail;
@@ -3009,7 +3009,7 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, l1_ofs, l1, l1_sz2, 0);
+ ret = bdrv_pread(bs->file, l1_ofs, l1_sz2, l1, 0);
if (ret < 0) {
g_free(l1);
return ret;
@@ -3180,7 +3180,7 @@ static int flush_refblock(BlockDriverState *bs, uint64_t **reftable,
return ret;
}
- ret = bdrv_pwrite(bs->file, offset, refblock, s->cluster_size, 0);
+ ret = bdrv_pwrite(bs->file, offset, s->cluster_size, refblock, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write refblock");
return ret;
@@ -3452,8 +3452,9 @@ int qcow2_change_refcount_order(BlockDriverState *bs, int refcount_order,
cpu_to_be64s(&new_reftable[i]);
}
- ret = bdrv_pwrite(bs->file, new_reftable_offset, new_reftable,
- new_reftable_size * REFTABLE_ENTRY_SIZE, 0);
+ ret = bdrv_pwrite(bs->file, new_reftable_offset,
+ new_reftable_size * REFTABLE_ENTRY_SIZE, new_reftable,
+ 0);
for (i = 0; i < new_reftable_size; i++) {
be64_to_cpus(&new_reftable[i]);
@@ -3656,8 +3657,9 @@ int qcow2_shrink_reftable(BlockDriverState *bs)
reftable_tmp[i] = unused_block ? 0 : cpu_to_be64(s->refcount_table[i]);
}
- ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset, reftable_tmp,
- s->refcount_table_size * REFTABLE_ENTRY_SIZE, 0);
+ ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset,
+ s->refcount_table_size * REFTABLE_ENTRY_SIZE,
+ reftable_tmp, 0);
/*
* If the write in the reftable failed the image may contain a partially
* overwritten reftable. In this case it would be better to clear the
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index dc62b0197c..60e0461632 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -108,7 +108,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read statically sized part of the snapshot header */
offset = ROUND_UP(offset, 8);
- ret = bdrv_pread(bs->file, offset, &h, sizeof(h), 0);
+ ret = bdrv_pread(bs->file, offset, sizeof(h), &h, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -146,8 +146,8 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
}
/* Read known extra data */
- ret = bdrv_pread(bs->file, offset, &extra,
- MIN(sizeof(extra), sn->extra_data_size), 0);
+ ret = bdrv_pread(bs->file, offset,
+ MIN(sizeof(extra), sn->extra_data_size), &extra, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -184,8 +184,8 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Store unknown extra data */
unknown_extra_data_size = sn->extra_data_size - sizeof(extra);
sn->unknown_extra_data = g_malloc(unknown_extra_data_size);
- ret = bdrv_pread(bs->file, offset, sn->unknown_extra_data,
- unknown_extra_data_size, 0);
+ ret = bdrv_pread(bs->file, offset, unknown_extra_data_size,
+ sn->unknown_extra_data, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Failed to read snapshot table");
@@ -196,7 +196,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read snapshot ID */
sn->id_str = g_malloc(id_str_size + 1);
- ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size, 0);
+ ret = bdrv_pread(bs->file, offset, id_str_size, sn->id_str, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -206,7 +206,7 @@ static int qcow2_do_read_snapshots(BlockDriverState *bs, bool repair,
/* Read snapshot name */
sn->name = g_malloc(name_size + 1);
- ret = bdrv_pread(bs->file, offset, sn->name, name_size, 0);
+ ret = bdrv_pread(bs->file, offset, name_size, sn->name, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
@@ -349,13 +349,13 @@ int qcow2_write_snapshots(BlockDriverState *bs)
h.name_size = cpu_to_be16(name_size);
offset = ROUND_UP(offset, 8);
- ret = bdrv_pwrite(bs->file, offset, &h, sizeof(h), 0);
+ ret = bdrv_pwrite(bs->file, offset, sizeof(h), &h, 0);
if (ret < 0) {
goto fail;
}
offset += sizeof(h);
- ret = bdrv_pwrite(bs->file, offset, &extra, sizeof(extra), 0);
+ ret = bdrv_pwrite(bs->file, offset, sizeof(extra), &extra, 0);
if (ret < 0) {
goto fail;
}
@@ -369,21 +369,21 @@ int qcow2_write_snapshots(BlockDriverState *bs)
assert(unknown_extra_data_size <= BDRV_REQUEST_MAX_BYTES);
assert(sn->unknown_extra_data);
- ret = bdrv_pwrite(bs->file, offset, sn->unknown_extra_data,
- unknown_extra_data_size, 0);
+ ret = bdrv_pwrite(bs->file, offset, unknown_extra_data_size,
+ sn->unknown_extra_data, 0);
if (ret < 0) {
goto fail;
}
offset += unknown_extra_data_size;
}
- ret = bdrv_pwrite(bs->file, offset, sn->id_str, id_str_size, 0);
+ ret = bdrv_pwrite(bs->file, offset, id_str_size, sn->id_str, 0);
if (ret < 0) {
goto fail;
}
offset += id_str_size;
- ret = bdrv_pwrite(bs->file, offset, sn->name, name_size, 0);
+ ret = bdrv_pwrite(bs->file, offset, name_size, sn->name, 0);
if (ret < 0) {
goto fail;
}
@@ -406,7 +406,7 @@ int qcow2_write_snapshots(BlockDriverState *bs)
header_data.snapshots_offset = cpu_to_be64(snapshots_offset);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
- &header_data, sizeof(header_data), 0);
+ sizeof(header_data), &header_data, 0);
if (ret < 0) {
goto fail;
}
@@ -442,7 +442,7 @@ int coroutine_fn qcow2_check_read_snapshot_table(BlockDriverState *bs,
/* qcow2_do_open() discards this information in check mode */
ret = bdrv_pread(bs->file, offsetof(QCowHeader, nb_snapshots),
- &snapshot_table_pointer, sizeof(snapshot_table_pointer),
+ sizeof(snapshot_table_pointer), &snapshot_table_pointer,
0);
if (ret < 0) {
result->check_errors++;
@@ -513,8 +513,8 @@ int coroutine_fn qcow2_check_read_snapshot_table(BlockDriverState *bs,
snapshot_table_pointer.nb_snapshots = cpu_to_be32(s->nb_snapshots);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
- &snapshot_table_pointer.nb_snapshots,
- sizeof(snapshot_table_pointer.nb_snapshots), 0);
+ sizeof(snapshot_table_pointer.nb_snapshots),
+ &snapshot_table_pointer.nb_snapshots, 0);
if (ret < 0) {
result->check_errors++;
fprintf(stderr, "ERROR failed to update the snapshot count in the "
@@ -694,8 +694,8 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
goto fail;
}
- ret = bdrv_pwrite(bs->file, sn->l1_table_offset, l1_table,
- s->l1_size * L1E_SIZE, 0);
+ ret = bdrv_pwrite(bs->file, sn->l1_table_offset, s->l1_size * L1E_SIZE,
+ l1_table, 0);
if (ret < 0) {
goto fail;
}
@@ -830,7 +830,7 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto fail;
}
- ret = bdrv_pread(bs->file, sn->l1_table_offset, sn_l1_table, sn_l1_bytes,
+ ret = bdrv_pread(bs->file, sn->l1_table_offset, sn_l1_bytes, sn_l1_table,
0);
if (ret < 0) {
goto fail;
@@ -849,8 +849,8 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto fail;
}
- ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset, sn_l1_table,
- cur_l1_bytes, 0);
+ ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset, cur_l1_bytes,
+ sn_l1_table, 0);
if (ret < 0) {
goto fail;
}
@@ -1052,8 +1052,8 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs,
return -ENOMEM;
}
- ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_table,
- new_l1_bytes, 0);
+ ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_bytes,
+ new_l1_table, 0);
if (ret < 0) {
error_setg(errp, "Failed to read l1 table for snapshot");
qemu_vfree(new_l1_table);
diff --git a/block/qcow2.c b/block/qcow2.c
index 99192d1242..5493e6b847 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -107,7 +107,7 @@ static ssize_t qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
return -1;
}
- ret = bdrv_pread(bs->file, s->crypto_header.offset + offset, buf, buflen,
+ ret = bdrv_pread(bs->file, s->crypto_header.offset + offset, buflen, buf,
0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
@@ -168,7 +168,7 @@ static ssize_t qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
return -1;
}
- ret = bdrv_pwrite(bs->file, s->crypto_header.offset + offset, buf, buflen,
+ ret = bdrv_pwrite(bs->file, s->crypto_header.offset + offset, buflen, buf,
0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read encryption header");
@@ -227,7 +227,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
printf("attempting to read extended header in offset %lu\n", offset);
#endif
- ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext), 0);
+ ret = bdrv_pread(bs->file, offset, sizeof(ext), &ext, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "qcow2_read_extension: ERROR: "
"pread fail from offset %" PRIu64, offset);
@@ -255,7 +255,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
sizeof(bs->backing_format));
return 2;
}
- ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len, 0);
+ ret = bdrv_pread(bs->file, offset, ext.len, bs->backing_format, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_backing_format: "
"Could not read format name");
@@ -271,7 +271,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_FEATURE_TABLE:
if (p_feature_table != NULL) {
void *feature_table = g_malloc0(ext.len + 2 * sizeof(Qcow2Feature));
- ret = bdrv_pread(bs->file, offset, feature_table, ext.len, 0);
+ ret = bdrv_pread(bs->file, offset, ext.len, feature_table, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_feature_table: "
"Could not read table");
@@ -296,7 +296,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
return -EINVAL;
}
- ret = bdrv_pread(bs->file, offset, &s->crypto_header, ext.len, 0);
+ ret = bdrv_pread(bs->file, offset, ext.len, &s->crypto_header, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Unable to read CRYPTO header extension");
@@ -352,7 +352,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
break;
}
- ret = bdrv_pread(bs->file, offset, &bitmaps_ext, ext.len, 0);
+ ret = bdrv_pread(bs->file, offset, ext.len, &bitmaps_ext, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "bitmaps_ext: "
"Could not read ext header");
@@ -416,7 +416,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_DATA_FILE:
{
s->image_data_file = g_malloc0(ext.len + 1);
- ret = bdrv_pread(bs->file, offset, s->image_data_file, ext.len, 0);
+ ret = bdrv_pread(bs->file, offset, ext.len, s->image_data_file, 0);
if (ret < 0) {
error_setg_errno(errp, -ret,
"ERROR: Could not read data file name");
@@ -440,7 +440,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
uext->len = ext.len;
QLIST_INSERT_HEAD(&s->unknown_header_ext, uext, next);
- ret = bdrv_pread(bs->file, offset, uext->data, uext->len, 0);
+ ret = bdrv_pread(bs->file, offset, uext->len, uext->data, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: unknown extension: "
"Could not read data");
@@ -517,7 +517,7 @@ int qcow2_mark_dirty(BlockDriverState *bs)
val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
- &val, sizeof(val), 0);
+ sizeof(val), &val, 0);
if (ret < 0) {
return ret;
}
@@ -1308,7 +1308,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
uint64_t l1_vm_state_index;
bool update_header = false;
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(header), &header, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read qcow2 header");
goto fail;
@@ -1384,8 +1384,9 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
if (header.header_length > sizeof(header)) {
s->unknown_header_fields_size = header.header_length - sizeof(header);
s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);
- ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,
- s->unknown_header_fields_size, 0);
+ ret = bdrv_pread(bs->file, sizeof(header),
+ s->unknown_header_fields_size,
+ s->unknown_header_fields, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read unknown qcow2 header "
"fields");
@@ -1580,8 +1581,8 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
ret = -ENOMEM;
goto fail;
}
- ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
- s->l1_size * L1E_SIZE, 0);
+ ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_size * L1E_SIZE,
+ s->l1_table, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read L1 table");
goto fail;
@@ -1698,8 +1699,8 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options,
ret = -EINVAL;
goto fail;
}
- ret = bdrv_pread(bs->file, header.backing_file_offset,
- bs->auto_backing_file, len, 0);
+ ret = bdrv_pread(bs->file, header.backing_file_offset, len,
+ bs->auto_backing_file, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read backing file name");
goto fail;
@@ -3081,7 +3082,7 @@ int qcow2_update_header(BlockDriverState *bs)
}
/* Write the new header */
- ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size, 0);
+ ret = bdrv_pwrite(bs->file, 0, s->cluster_size, header, 0);
if (ret < 0) {
goto fail;
}
@@ -4550,8 +4551,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
/* write updated header.size */
offset = cpu_to_be64(offset);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size), &offset,
- sizeof(offset), 0);
+ ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
+ sizeof(offset), &offset, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to update the image size");
goto fail;
@@ -4828,7 +4829,7 @@ static int make_completely_empty(BlockDriverState *bs)
l1_ofs_rt_ofs_cls.reftable_offset = cpu_to_be64(s->cluster_size);
l1_ofs_rt_ofs_cls.reftable_clusters = cpu_to_be32(1);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_table_offset),
- &l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls), 0);
+ sizeof(l1_ofs_rt_ofs_cls), &l1_ofs_rt_ofs_cls, 0);
if (ret < 0) {
goto fail_broken_refcounts;
}
@@ -4859,8 +4860,8 @@ static int make_completely_empty(BlockDriverState *bs)
/* Enter the first refblock into the reftable */
rt_entry = cpu_to_be64(2 * s->cluster_size);
- ret = bdrv_pwrite_sync(bs->file, s->cluster_size, &rt_entry,
- sizeof(rt_entry), 0);
+ ret = bdrv_pwrite_sync(bs->file, s->cluster_size, sizeof(rt_entry),
+ &rt_entry, 0);
if (ret < 0) {
goto fail_broken_refcounts;
}
diff --git a/block/qed.c b/block/qed.c
index ad86079941..ba93e99570 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -90,7 +90,7 @@ int qed_write_header_sync(BDRVQEDState *s)
int ret;
qed_header_cpu_to_le(&s->header, &le);
- ret = bdrv_pwrite(s->bs->file, 0, &le, sizeof(le), 0);
+ ret = bdrv_pwrite(s->bs->file, 0, sizeof(le), &le, 0);
if (ret != sizeof(le)) {
return ret;
}
@@ -207,7 +207,7 @@ static int qed_read_string(BdrvChild *file, uint64_t offset, size_t n,
if (n >= buflen) {
return -EINVAL;
}
- ret = bdrv_pread(file, offset, buf, n, 0);
+ ret = bdrv_pread(file, offset, n, buf, 0);
if (ret < 0) {
return ret;
}
@@ -392,7 +392,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverState *bs, QDict *options,
int64_t file_size;
int ret;
- ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(le_header), &le_header, 0);
if (ret < 0) {
error_setg(errp, "Failed to read QED header");
return ret;
@@ -1545,7 +1545,7 @@ static int bdrv_qed_change_backing_file(BlockDriverState *bs,
}
/* Write new header */
- ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len, 0);
+ ret = bdrv_pwrite_sync(bs->file, 0, buffer_len, buffer, 0);
g_free(buffer);
if (ret == 0) {
memcpy(&s->header, &new_header, sizeof(new_header));
diff --git a/block/vdi.c b/block/vdi.c
index 76cec1b883..9ef55a117a 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -385,7 +385,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
logout("\n");
- ret = bdrv_pread(bs->file, 0, &header, sizeof(header), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(header), &header, 0);
if (ret < 0) {
goto fail;
}
@@ -485,8 +485,8 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, header.offset_bmap, s->bmap,
- bmap_size * SECTOR_SIZE, 0);
+ ret = bdrv_pread(bs->file, header.offset_bmap, bmap_size * SECTOR_SIZE,
+ s->bmap, 0);
if (ret < 0) {
goto fail_free_bmap;
}
@@ -664,7 +664,7 @@ vdi_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,
* so this full-cluster write does not overlap a partial write
* of the same cluster, issued from the "else" branch.
*/
- ret = bdrv_pwrite(bs->file, data_offset, block, s->block_size, 0);
+ ret = bdrv_pwrite(bs->file, data_offset, s->block_size, block, 0);
qemu_co_rwlock_unlock(&s->bmap_lock);
} else {
nonallocating_write:
@@ -709,7 +709,7 @@ nonallocating_write:
assert(VDI_IS_ALLOCATED(bmap_first));
*header = s->header;
vdi_header_to_le(header);
- ret = bdrv_pwrite(bs->file, 0, header, sizeof(*header), 0);
+ ret = bdrv_pwrite(bs->file, 0, sizeof(*header), header, 0);
g_free(header);
if (ret < 0) {
@@ -726,8 +726,8 @@ nonallocating_write:
base = ((uint8_t *)&s->bmap[0]) + bmap_first * SECTOR_SIZE;
logout("will write %u block map sectors starting from entry %u\n",
n_sectors, bmap_first);
- ret = bdrv_pwrite(bs->file, offset * SECTOR_SIZE, base,
- n_sectors * SECTOR_SIZE, 0);
+ ret = bdrv_pwrite(bs->file, offset * SECTOR_SIZE,
+ n_sectors * SECTOR_SIZE, base, 0);
}
return ret < 0 ? ret : 0;
diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index da0057000b..572582b87b 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -84,7 +84,7 @@ static int vhdx_log_peek_hdr(BlockDriverState *bs, VHDXLogEntries *log,
offset = log->offset + read;
- ret = bdrv_pread(bs->file, offset, hdr, sizeof(VHDXLogEntryHeader), 0);
+ ret = bdrv_pread(bs->file, offset, sizeof(VHDXLogEntryHeader), hdr, 0);
if (ret < 0) {
goto exit;
}
@@ -144,7 +144,7 @@ static int vhdx_log_read_sectors(BlockDriverState *bs, VHDXLogEntries *log,
}
offset = log->offset + read;
- ret = bdrv_pread(bs->file, offset, buffer, VHDX_LOG_SECTOR_SIZE, 0);
+ ret = bdrv_pread(bs->file, offset, VHDX_LOG_SECTOR_SIZE, buffer, 0);
if (ret < 0) {
goto exit;
}
@@ -194,7 +194,7 @@ static int vhdx_log_write_sectors(BlockDriverState *bs, VHDXLogEntries *log,
/* full */
break;
}
- ret = bdrv_pwrite(bs->file, offset, buffer_tmp, VHDX_LOG_SECTOR_SIZE,
+ ret = bdrv_pwrite(bs->file, offset, VHDX_LOG_SECTOR_SIZE, buffer_tmp,
0);
if (ret < 0) {
goto exit;
@@ -466,8 +466,8 @@ static int vhdx_log_flush_desc(BlockDriverState *bs, VHDXLogDescriptor *desc,
/* count is only > 1 if we are writing zeroes */
for (i = 0; i < count; i++) {
- ret = bdrv_pwrite_sync(bs->file, file_offset, buffer,
- VHDX_LOG_SECTOR_SIZE, 0);
+ ret = bdrv_pwrite_sync(bs->file, file_offset, VHDX_LOG_SECTOR_SIZE,
+ buffer, 0);
if (ret < 0) {
goto exit;
}
@@ -970,8 +970,8 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s,
if (i == 0 && leading_length) {
/* partial sector at the front of the buffer */
- ret = bdrv_pread(bs->file, file_offset, merged_sector,
- VHDX_LOG_SECTOR_SIZE, 0);
+ ret = bdrv_pread(bs->file, file_offset, VHDX_LOG_SECTOR_SIZE,
+ merged_sector, 0);
if (ret < 0) {
goto exit;
}
@@ -981,8 +981,8 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s,
} else if (i == sectors - 1 && trailing_length) {
/* partial sector at the end of the buffer */
ret = bdrv_pread(bs->file, file_offset,
- merged_sector + trailing_length,
- VHDX_LOG_SECTOR_SIZE - trailing_length, 0);
+ VHDX_LOG_SECTOR_SIZE - trailing_length,
+ merged_sector + trailing_length, 0);
if (ret < 0) {
goto exit;
}
diff --git a/block/vhdx.c b/block/vhdx.c
index f5c812c9cf..12f5261f80 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -326,7 +326,7 @@ static int vhdx_write_header(BdrvChild *file, VHDXHeader *hdr,
buffer = qemu_blockalign(bs_file, VHDX_HEADER_SIZE);
if (read) {
/* if true, we can't assume the extra reserved bytes are 0 */
- ret = bdrv_pread(file, offset, buffer, VHDX_HEADER_SIZE, 0);
+ ret = bdrv_pread(file, offset, VHDX_HEADER_SIZE, buffer, 0);
if (ret < 0) {
goto exit;
}
@@ -340,7 +340,7 @@ static int vhdx_write_header(BdrvChild *file, VHDXHeader *hdr,
vhdx_header_le_export(hdr, header_le);
vhdx_update_checksum(buffer, VHDX_HEADER_SIZE,
offsetof(VHDXHeader, checksum));
- ret = bdrv_pwrite_sync(file, offset, header_le, sizeof(VHDXHeader), 0);
+ ret = bdrv_pwrite_sync(file, offset, sizeof(VHDXHeader), header_le, 0);
exit:
qemu_vfree(buffer);
@@ -440,7 +440,7 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s,
/* We have to read the whole VHDX_HEADER_SIZE instead of
* sizeof(VHDXHeader), because the checksum is over the whole
* region */
- ret = bdrv_pread(bs->file, VHDX_HEADER1_OFFSET, buffer, VHDX_HEADER_SIZE,
+ ret = bdrv_pread(bs->file, VHDX_HEADER1_OFFSET, VHDX_HEADER_SIZE, buffer,
0);
if (ret < 0) {
goto fail;
@@ -457,7 +457,7 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s,
}
}
- ret = bdrv_pread(bs->file, VHDX_HEADER2_OFFSET, buffer, VHDX_HEADER_SIZE,
+ ret = bdrv_pread(bs->file, VHDX_HEADER2_OFFSET, VHDX_HEADER_SIZE, buffer,
0);
if (ret < 0) {
goto fail;
@@ -531,8 +531,8 @@ static int vhdx_open_region_tables(BlockDriverState *bs, BDRVVHDXState *s)
* whole block */
buffer = qemu_blockalign(bs, VHDX_HEADER_BLOCK_SIZE);
- ret = bdrv_pread(bs->file, VHDX_REGION_TABLE_OFFSET, buffer,
- VHDX_HEADER_BLOCK_SIZE, 0);
+ ret = bdrv_pread(bs->file, VHDX_REGION_TABLE_OFFSET,
+ VHDX_HEADER_BLOCK_SIZE, buffer, 0);
if (ret < 0) {
goto fail;
}
@@ -644,8 +644,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
buffer = qemu_blockalign(bs, VHDX_METADATA_TABLE_MAX_SIZE);
- ret = bdrv_pread(bs->file, s->metadata_rt.file_offset, buffer,
- VHDX_METADATA_TABLE_MAX_SIZE, 0);
+ ret = bdrv_pread(bs->file, s->metadata_rt.file_offset,
+ VHDX_METADATA_TABLE_MAX_SIZE, buffer, 0);
if (ret < 0) {
goto exit;
}
@@ -750,8 +750,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
ret = bdrv_pread(bs->file,
s->metadata_entries.file_parameters_entry.offset
+ s->metadata_rt.file_offset,
- &s->params,
sizeof(s->params),
+ &s->params,
0);
if (ret < 0) {
@@ -786,8 +786,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
ret = bdrv_pread(bs->file,
s->metadata_entries.virtual_disk_size_entry.offset
+ s->metadata_rt.file_offset,
- &s->virtual_disk_size,
sizeof(uint64_t),
+ &s->virtual_disk_size,
0);
if (ret < 0) {
goto exit;
@@ -795,8 +795,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
ret = bdrv_pread(bs->file,
s->metadata_entries.logical_sector_size_entry.offset
+ s->metadata_rt.file_offset,
- &s->logical_sector_size,
sizeof(uint32_t),
+ &s->logical_sector_size,
0);
if (ret < 0) {
goto exit;
@@ -804,8 +804,8 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
ret = bdrv_pread(bs->file,
s->metadata_entries.phys_sector_size_entry.offset
+ s->metadata_rt.file_offset,
- &s->physical_sector_size,
sizeof(uint32_t),
+ &s->physical_sector_size,
0);
if (ret < 0) {
goto exit;
@@ -1014,7 +1014,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
QLIST_INIT(&s->regions);
/* validate the file signature */
- ret = bdrv_pread(bs->file, 0, &signature, sizeof(uint64_t), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(uint64_t), &signature, 0);
if (ret < 0) {
goto fail;
}
@@ -1073,7 +1073,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, s->bat_offset, s->bat, s->bat_rt.length, 0);
+ ret = bdrv_pread(bs->file, s->bat_offset, s->bat_rt.length, s->bat, 0);
if (ret < 0) {
goto fail;
}
diff --git a/block/vmdk.c b/block/vmdk.c
index 4ad09ca07b..aacea1095f 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -307,7 +307,7 @@ static int vmdk_read_cid(BlockDriverState *bs, int parent, uint32_t *pcid)
int ret;
desc = g_malloc0(DESC_SIZE);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
+ ret = bdrv_pread(bs->file, s->desc_offset, DESC_SIZE, desc, 0);
if (ret < 0) {
goto out;
}
@@ -348,7 +348,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
desc = g_malloc0(DESC_SIZE);
tmp_desc = g_malloc0(DESC_SIZE);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
+ ret = bdrv_pread(bs->file, s->desc_offset, DESC_SIZE, desc, 0);
if (ret < 0) {
goto out;
}
@@ -368,7 +368,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
pstrcat(desc, DESC_SIZE, tmp_desc);
}
- ret = bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
+ ret = bdrv_pwrite_sync(bs->file, s->desc_offset, DESC_SIZE, desc, 0);
out:
g_free(desc);
@@ -469,7 +469,7 @@ static int vmdk_parent_open(BlockDriverState *bs)
int ret;
desc = g_malloc0(DESC_SIZE + 1);
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE, 0);
+ ret = bdrv_pread(bs->file, s->desc_offset, DESC_SIZE, desc, 0);
if (ret < 0) {
goto out;
}
@@ -589,8 +589,8 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent,
return -ENOMEM;
}
- ret = bdrv_pread(extent->file, extent->l1_table_offset, extent->l1_table,
- l1_size, 0);
+ ret = bdrv_pread(extent->file, extent->l1_table_offset, l1_size,
+ extent->l1_table, 0);
if (ret < 0) {
bdrv_refresh_filename(extent->file->bs);
error_setg_errno(errp, -ret,
@@ -615,7 +615,7 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent,
goto fail_l1;
}
ret = bdrv_pread(extent->file, extent->l1_backup_table_offset,
- extent->l1_backup_table, l1_size, 0);
+ l1_size, extent->l1_backup_table, 0);
if (ret < 0) {
bdrv_refresh_filename(extent->file->bs);
error_setg_errno(errp, -ret,
@@ -647,7 +647,7 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
VMDK3Header header;
VmdkExtent *extent = NULL;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header), 0);
+ ret = bdrv_pread(file, sizeof(magic), sizeof(header), &header, 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -811,7 +811,7 @@ static int vmdk_open_se_sparse(BlockDriverState *bs,
assert(sizeof(const_header) == SECTOR_SIZE);
- ret = bdrv_pread(file, 0, &const_header, sizeof(const_header), 0);
+ ret = bdrv_pread(file, 0, sizeof(const_header), &const_header, 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -829,7 +829,7 @@ static int vmdk_open_se_sparse(BlockDriverState *bs,
assert(sizeof(volatile_header) == SECTOR_SIZE);
ret = bdrv_pread(file, const_header.volatile_header_offset * SECTOR_SIZE,
- &volatile_header, sizeof(volatile_header), 0);
+ sizeof(volatile_header), &volatile_header, 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -899,7 +899,7 @@ static char *vmdk_read_desc(BdrvChild *file, uint64_t desc_offset, Error **errp)
size = MIN(size, (1 << 20) - 1); /* avoid unbounded allocation */
buf = g_malloc(size + 1);
- ret = bdrv_pread(file, desc_offset, buf, size, 0);
+ ret = bdrv_pread(file, desc_offset, size, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read from file");
g_free(buf);
@@ -923,7 +923,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
int64_t l1_backup_offset = 0;
bool compressed;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header), 0);
+ ret = bdrv_pread(file, sizeof(magic), sizeof(header), &header, 0);
if (ret < 0) {
bdrv_refresh_filename(file->bs);
error_setg_errno(errp, -ret,
@@ -975,7 +975,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
} QEMU_PACKED footer;
ret = bdrv_pread(file, bs->file->bs->total_sectors * 512 - 1536,
- &footer, sizeof(footer), 0);
+ sizeof(footer), &footer, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read footer");
return ret;
@@ -1442,16 +1442,16 @@ static int get_whole_cluster(BlockDriverState *bs,
if (copy_from_backing) {
/* qcow2 emits this on bs->file instead of bs->backing */
BLKDBG_EVENT(extent->file, BLKDBG_COW_READ);
- ret = bdrv_pread(bs->backing, offset, whole_grain,
- skip_start_bytes, 0);
+ ret = bdrv_pread(bs->backing, offset, skip_start_bytes,
+ whole_grain, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
}
}
BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE);
- ret = bdrv_pwrite(extent->file, cluster_offset, whole_grain,
- skip_start_bytes, 0);
+ ret = bdrv_pwrite(extent->file, cluster_offset, skip_start_bytes,
+ whole_grain, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1463,8 +1463,8 @@ static int get_whole_cluster(BlockDriverState *bs,
/* qcow2 emits this on bs->file instead of bs->backing */
BLKDBG_EVENT(extent->file, BLKDBG_COW_READ);
ret = bdrv_pread(bs->backing, offset + skip_end_bytes,
- whole_grain + skip_end_bytes,
- cluster_bytes - skip_end_bytes, 0);
+ cluster_bytes - skip_end_bytes,
+ whole_grain + skip_end_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1472,8 +1472,8 @@ static int get_whole_cluster(BlockDriverState *bs,
}
BLKDBG_EVENT(extent->file, BLKDBG_COW_WRITE);
ret = bdrv_pwrite(extent->file, cluster_offset + skip_end_bytes,
- whole_grain + skip_end_bytes,
- cluster_bytes - skip_end_bytes, 0);
+ cluster_bytes - skip_end_bytes,
+ whole_grain + skip_end_bytes, 0);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
@@ -1495,7 +1495,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data,
if (bdrv_pwrite(extent->file,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
- &offset, sizeof(offset), 0) < 0) {
+ sizeof(offset), &offset, 0) < 0) {
return VMDK_ERROR;
}
/* update backup L2 table */
@@ -1504,7 +1504,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data,
if (bdrv_pwrite(extent->file,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
- &offset, sizeof(offset), 0) < 0) {
+ sizeof(offset), &offset, 0) < 0) {
return VMDK_ERROR;
}
}
@@ -1627,8 +1627,8 @@ static int get_cluster_offset(BlockDriverState *bs,
BLKDBG_EVENT(extent->file, BLKDBG_L2_LOAD);
if (bdrv_pread(extent->file,
(int64_t)l2_offset * 512,
- l2_table,
l2_size_bytes,
+ l2_table,
0
) != l2_size_bytes) {
return VMDK_ERROR;
@@ -1898,7 +1898,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset,
cluster_buf = g_malloc(buf_bytes);
uncomp_buf = g_malloc(cluster_bytes);
BLKDBG_EVENT(extent->file, BLKDBG_READ_COMPRESSED);
- ret = bdrv_pread(extent->file, cluster_offset, cluster_buf, buf_bytes, 0);
+ ret = bdrv_pread(extent->file, cluster_offset, buf_bytes, cluster_buf, 0);
if (ret < 0) {
goto out;
}
diff --git a/block/vpc.c b/block/vpc.c
index 1ccdfb0557..7f20820193 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -252,7 +252,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, &s->footer, sizeof(s->footer), 0);
+ ret = bdrv_pread(bs->file, 0, sizeof(s->footer), &s->footer, 0);
if (ret < 0) {
error_setg(errp, "Unable to read VHD header");
goto fail;
@@ -272,8 +272,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
}
/* If a fixed disk, the footer is found only at the end of the file */
- ret = bdrv_pread(bs->file, offset - sizeof(*footer), footer,
- sizeof(*footer), 0);
+ ret = bdrv_pread(bs->file, offset - sizeof(*footer), sizeof(*footer),
+ footer, 0);
if (ret < 0) {
goto fail;
}
@@ -347,7 +347,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
if (disk_type == VHD_DYNAMIC) {
ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset),
- &dyndisk_header, sizeof(dyndisk_header), 0);
+ sizeof(dyndisk_header), &dyndisk_header, 0);
if (ret < 0) {
error_setg(errp, "Error reading dynamic VHD header");
goto fail;
@@ -401,8 +401,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
s->bat_offset = be64_to_cpu(dyndisk_header.table_offset);
- ret = bdrv_pread(bs->file, s->bat_offset, s->pagetable,
- pagetable_size, 0);
+ ret = bdrv_pread(bs->file, s->bat_offset, pagetable_size,
+ s->pagetable, 0);
if (ret < 0) {
error_setg(errp, "Error reading pagetable");
goto fail;
@@ -516,7 +516,7 @@ static inline int64_t get_image_offset(BlockDriverState *bs, uint64_t offset,
s->last_bitmap_offset = bitmap_offset;
memset(bitmap, 0xff, s->bitmap_size);
- r = bdrv_pwrite_sync(bs->file, bitmap_offset, bitmap, s->bitmap_size,
+ r = bdrv_pwrite_sync(bs->file, bitmap_offset, s->bitmap_size, bitmap,
0);
if (r < 0) {
*err = r;
@@ -539,7 +539,7 @@ static int rewrite_footer(BlockDriverState *bs)
BDRVVPCState *s = bs->opaque;
int64_t offset = s->free_data_block_offset;
- ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, sizeof(s->footer), 0);
+ ret = bdrv_pwrite_sync(bs->file, offset, sizeof(s->footer), &s->footer, 0);
if (ret < 0)
return ret;
@@ -573,8 +573,8 @@ static int64_t alloc_block(BlockDriverState *bs, int64_t offset)
/* Initialize the block's bitmap */
memset(bitmap, 0xff, s->bitmap_size);
- ret = bdrv_pwrite_sync(bs->file, s->free_data_block_offset, bitmap,
- s->bitmap_size, 0);
+ ret = bdrv_pwrite_sync(bs->file, s->free_data_block_offset,
+ s->bitmap_size, bitmap, 0);
if (ret < 0) {
return ret;
}
@@ -588,7 +588,7 @@ static int64_t alloc_block(BlockDriverState *bs, int64_t offset)
/* Write BAT entry to disk */
bat_offset = s->bat_offset + (4 * index);
bat_value = cpu_to_be32(s->pagetable[index]);
- ret = bdrv_pwrite_sync(bs->file, bat_offset, &bat_value, 4, 0);
+ ret = bdrv_pwrite_sync(bs->file, bat_offset, 4, &bat_value, 0);
if (ret < 0)
goto fail;
diff --git a/block/vvfat.c b/block/vvfat.c
index 87595dfc69..d6dd919683 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1488,8 +1488,8 @@ static int vvfat_read(BlockDriverState *bs, int64_t sector_num,
DLOG(fprintf(stderr, "sectors %" PRId64 "+%" PRId64
" allocated\n", sector_num,
n >> BDRV_SECTOR_BITS));
- if (bdrv_pread(s->qcow, sector_num * BDRV_SECTOR_SIZE,
- buf + i * 0x200, n, 0) < 0) {
+ if (bdrv_pread(s->qcow, sector_num * BDRV_SECTOR_SIZE, n,
+ buf + i * 0x200, 0) < 0) {
return -1;
}
i += (n >> BDRV_SECTOR_BITS) - 1;
@@ -1978,7 +1978,7 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s,
return -1;
}
res = bdrv_pwrite(s->qcow, offset * BDRV_SECTOR_SIZE,
- s->cluster_buffer, BDRV_SECTOR_SIZE,
+ BDRV_SECTOR_SIZE, s->cluster_buffer,
0);
if (res < 0) {
return -2;
@@ -3063,8 +3063,8 @@ DLOG(checkpoint());
* Use qcow backend. Commit later.
*/
DLOG(fprintf(stderr, "Write to qcow backend: %d + %d\n", (int)sector_num, nb_sectors));
- ret = bdrv_pwrite(s->qcow, sector_num * BDRV_SECTOR_SIZE, buf,
- nb_sectors * BDRV_SECTOR_SIZE, 0);
+ ret = bdrv_pwrite(s->qcow, sector_num * BDRV_SECTOR_SIZE,
+ nb_sectors * BDRV_SECTOR_SIZE, buf, 0);
if (ret < 0) {
fprintf(stderr, "Error writing to qcow backend\n");
return ret;
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 4db1ad5dfe..49fb1ef1ea 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -88,11 +88,11 @@ static void test_sync_op_pread(BdrvChild *c)
int ret;
/* Success */
- ret = bdrv_pread(c, 0, buf, sizeof(buf), 0);
+ ret = bdrv_pread(c, 0, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, 512);
/* Early error: Negative offset */
- ret = bdrv_pread(c, -2, buf, sizeof(buf), 0);
+ ret = bdrv_pread(c, -2, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, -EIO);
}
@@ -102,11 +102,11 @@ static void test_sync_op_pwrite(BdrvChild *c)
int ret;
/* Success */
- ret = bdrv_pwrite(c, 0, buf, sizeof(buf), 0);
+ ret = bdrv_pwrite(c, 0, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, 512);
/* Early error: Negative offset */
- ret = bdrv_pwrite(c, -2, buf, sizeof(buf), 0);
+ ret = bdrv_pwrite(c, -2, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, -EIO);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 03/35] block: Make bdrv_{pread,pwrite}() return 0 on success
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
2022-07-12 18:05 ` [PULL 01/35] block: Add a 'flags' param to bdrv_{pread, pwrite, pwrite_sync}() Hanna Reitz
2022-07-12 18:05 ` [PULL 02/35] block: Change bdrv_{pread, pwrite, pwrite_sync}() param order Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 04/35] crypto: Make block callbacks " Hanna Reitz
` (32 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
They currently return the value of their 'bytes' parameter on success.
Make them return 0 instead, for consistency with other I/O functions and
in preparation to implement them using generated_co_wrapper. This also
makes it clear that short reads/writes are not possible.
The few callers that rely on the previous behavior are adjusted
accordingly by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-4-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/cloop.c | 2 +-
block/crypto.c | 4 ++--
block/dmg.c | 10 +++++-----
block/io.c | 10 ++--------
block/qcow.c | 2 +-
block/qcow2.c | 4 ++--
block/qed.c | 7 +------
block/vdi.c | 2 +-
block/vmdk.c | 5 ++---
tests/unit/test-block-iothread.c | 4 ++--
10 files changed, 19 insertions(+), 31 deletions(-)
diff --git a/block/cloop.c b/block/cloop.c
index 9a2334495e..40b146e714 100644
--- a/block/cloop.c
+++ b/block/cloop.c
@@ -222,7 +222,7 @@ static inline int cloop_read_block(BlockDriverState *bs, int block_num)
ret = bdrv_pread(bs->file, s->offsets[block_num], bytes,
s->compressed_block, 0);
- if (ret != bytes) {
+ if (ret < 0) {
return -1;
}
diff --git a/block/crypto.c b/block/crypto.c
index deec7fae2f..e7f5c4e31a 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -70,7 +70,7 @@ static ssize_t block_crypto_read_func(QCryptoBlock *block,
error_setg_errno(errp, -ret, "Could not read encryption header");
return ret;
}
- return ret;
+ return buflen;
}
static ssize_t block_crypto_write_func(QCryptoBlock *block,
@@ -88,7 +88,7 @@ static ssize_t block_crypto_write_func(QCryptoBlock *block,
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
}
- return ret;
+ return buflen;
}
diff --git a/block/dmg.c b/block/dmg.c
index 5a460c3eb1..98db18d82a 100644
--- a/block/dmg.c
+++ b/block/dmg.c
@@ -390,7 +390,7 @@ static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
buffer = g_malloc(info_length + 1);
buffer[info_length] = '\0';
ret = bdrv_pread(bs->file, info_begin, info_length, buffer, 0);
- if (ret != info_length) {
+ if (ret < 0) {
ret = -EINVAL;
goto fail;
}
@@ -611,7 +611,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
* inflated. */
ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
s->compressed_chunk, 0);
- if (ret != s->lengths[chunk]) {
+ if (ret < 0) {
return -1;
}
@@ -637,7 +637,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
* inflated. */
ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
s->compressed_chunk, 0);
- if (ret != s->lengths[chunk]) {
+ if (ret < 0) {
return -1;
}
@@ -658,7 +658,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
* inflated. */
ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
s->compressed_chunk, 0);
- if (ret != s->lengths[chunk]) {
+ if (ret < 0) {
return -1;
}
@@ -674,7 +674,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
case UDRW: /* copy */
ret = bdrv_pread(bs->file, s->offsets[chunk], s->lengths[chunk],
s->uncompressed_chunk, 0);
- if (ret != s->lengths[chunk]) {
+ if (ret < 0) {
return -1;
}
break;
diff --git a/block/io.c b/block/io.c
index d4a39b5569..86b5e8b471 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1100,7 +1100,6 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
BdrvRequestFlags flags)
{
- int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
@@ -1108,9 +1107,7 @@ int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
return -EINVAL;
}
- ret = bdrv_preadv(child, offset, bytes, &qiov, flags);
-
- return ret < 0 ? ret : bytes;
+ return bdrv_preadv(child, offset, bytes, &qiov, flags);
}
/* Return no. of bytes on success or < 0 on error. Important errors are:
@@ -1122,7 +1119,6 @@ int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
const void *buf, BdrvRequestFlags flags)
{
- int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
@@ -1130,9 +1126,7 @@ int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
return -EINVAL;
}
- ret = bdrv_pwritev(child, offset, bytes, &qiov, flags);
-
- return ret < 0 ? ret : bytes;
+ return bdrv_pwritev(child, offset, bytes, &qiov, flags);
}
/*
diff --git a/block/qcow.c b/block/qcow.c
index c94524b814..c646d6b16d 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -597,7 +597,7 @@ static int decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
csize &= (s->cluster_size - 1);
BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED);
ret = bdrv_pread(bs->file, coffset, csize, s->cluster_data, 0);
- if (ret != csize)
+ if (ret < 0)
return -1;
if (decompress_buffer(s->cluster_cache, s->cluster_size,
s->cluster_data, csize) < 0) {
diff --git a/block/qcow2.c b/block/qcow2.c
index 5493e6b847..d5a1e8bc43 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -113,7 +113,7 @@ static ssize_t qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
}
- return ret;
+ return buflen;
}
@@ -174,7 +174,7 @@ static ssize_t qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
}
- return ret;
+ return buflen;
}
static QDict*
diff --git a/block/qed.c b/block/qed.c
index ba93e99570..55da91eb72 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -87,14 +87,9 @@ static void qed_header_cpu_to_le(const QEDHeader *cpu, QEDHeader *le)
int qed_write_header_sync(BDRVQEDState *s)
{
QEDHeader le;
- int ret;
qed_header_cpu_to_le(&s->header, &le);
- ret = bdrv_pwrite(s->bs->file, 0, sizeof(le), &le, 0);
- if (ret != sizeof(le)) {
- return ret;
- }
- return 0;
+ return bdrv_pwrite(s->bs->file, 0, sizeof(le), &le, 0);
}
/**
diff --git a/block/vdi.c b/block/vdi.c
index 9ef55a117a..a0be2a23b9 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -730,7 +730,7 @@ nonallocating_write:
n_sectors * SECTOR_SIZE, base, 0);
}
- return ret < 0 ? ret : 0;
+ return ret;
}
static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options,
diff --git a/block/vmdk.c b/block/vmdk.c
index aacea1095f..332565c80f 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -473,7 +473,6 @@ static int vmdk_parent_open(BlockDriverState *bs)
if (ret < 0) {
goto out;
}
- ret = 0;
p_name = strstr(desc, "parentFileNameHint");
if (p_name != NULL) {
@@ -905,7 +904,7 @@ static char *vmdk_read_desc(BdrvChild *file, uint64_t desc_offset, Error **errp)
g_free(buf);
return NULL;
}
- buf[ret] = 0;
+ buf[size] = 0;
return buf;
}
@@ -1630,7 +1629,7 @@ static int get_cluster_offset(BlockDriverState *bs,
l2_size_bytes,
l2_table,
0
- ) != l2_size_bytes) {
+ ) < 0) {
return VMDK_ERROR;
}
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 49fb1ef1ea..a5c163af7e 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -89,7 +89,7 @@ static void test_sync_op_pread(BdrvChild *c)
/* Success */
ret = bdrv_pread(c, 0, sizeof(buf), buf, 0);
- g_assert_cmpint(ret, ==, 512);
+ g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
ret = bdrv_pread(c, -2, sizeof(buf), buf, 0);
@@ -103,7 +103,7 @@ static void test_sync_op_pwrite(BdrvChild *c)
/* Success */
ret = bdrv_pwrite(c, 0, sizeof(buf), buf, 0);
- g_assert_cmpint(ret, ==, 512);
+ g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
ret = bdrv_pwrite(c, -2, sizeof(buf), buf, 0);
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 04/35] crypto: Make block callbacks return 0 on success
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (2 preceding siblings ...)
2022-07-12 18:05 ` [PULL 03/35] block: Make bdrv_{pread,pwrite}() return 0 on success Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 05/35] block: Make bdrv_co_pwrite() take a const buffer Hanna Reitz
` (31 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
They currently return the value of their headerlen/buflen parameter on
success. Returning 0 instead makes it clear that short reads/writes are
not possible.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-5-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/crypto/block.h | 32 ++++++++++-----------
block/crypto.c | 52 +++++++++++++++++-----------------
block/qcow2.c | 22 +++++++-------
crypto/block-luks.c | 8 +++---
crypto/block.c | 6 ++--
tests/unit/test-crypto-block.c | 38 ++++++++++++-------------
6 files changed, 79 insertions(+), 79 deletions(-)
diff --git a/include/crypto/block.h b/include/crypto/block.h
index 7a65e8e402..4f63a37872 100644
--- a/include/crypto/block.h
+++ b/include/crypto/block.h
@@ -29,24 +29,24 @@ typedef struct QCryptoBlock QCryptoBlock;
/* See also QCryptoBlockFormat, QCryptoBlockCreateOptions
* and QCryptoBlockOpenOptions in qapi/crypto.json */
-typedef ssize_t (*QCryptoBlockReadFunc)(QCryptoBlock *block,
- size_t offset,
- uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp);
+typedef int (*QCryptoBlockReadFunc)(QCryptoBlock *block,
+ size_t offset,
+ uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp);
-typedef ssize_t (*QCryptoBlockInitFunc)(QCryptoBlock *block,
- size_t headerlen,
- void *opaque,
- Error **errp);
+typedef int (*QCryptoBlockInitFunc)(QCryptoBlock *block,
+ size_t headerlen,
+ void *opaque,
+ Error **errp);
-typedef ssize_t (*QCryptoBlockWriteFunc)(QCryptoBlock *block,
- size_t offset,
- const uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp);
+typedef int (*QCryptoBlockWriteFunc)(QCryptoBlock *block,
+ size_t offset,
+ const uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp);
/**
* qcrypto_block_has_format:
diff --git a/block/crypto.c b/block/crypto.c
index e7f5c4e31a..11c3ddbc73 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -55,12 +55,12 @@ static int block_crypto_probe_generic(QCryptoBlockFormat format,
}
-static ssize_t block_crypto_read_func(QCryptoBlock *block,
- size_t offset,
- uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp)
+static int block_crypto_read_func(QCryptoBlock *block,
+ size_t offset,
+ uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
{
BlockDriverState *bs = opaque;
ssize_t ret;
@@ -70,15 +70,15 @@ static ssize_t block_crypto_read_func(QCryptoBlock *block,
error_setg_errno(errp, -ret, "Could not read encryption header");
return ret;
}
- return buflen;
+ return 0;
}
-static ssize_t block_crypto_write_func(QCryptoBlock *block,
- size_t offset,
- const uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp)
+static int block_crypto_write_func(QCryptoBlock *block,
+ size_t offset,
+ const uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
{
BlockDriverState *bs = opaque;
ssize_t ret;
@@ -88,7 +88,7 @@ static ssize_t block_crypto_write_func(QCryptoBlock *block,
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
}
- return buflen;
+ return 0;
}
@@ -99,12 +99,12 @@ struct BlockCryptoCreateData {
};
-static ssize_t block_crypto_create_write_func(QCryptoBlock *block,
- size_t offset,
- const uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp)
+static int block_crypto_create_write_func(QCryptoBlock *block,
+ size_t offset,
+ const uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
{
struct BlockCryptoCreateData *data = opaque;
ssize_t ret;
@@ -114,13 +114,13 @@ static ssize_t block_crypto_create_write_func(QCryptoBlock *block,
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
}
- return ret;
+ return 0;
}
-static ssize_t block_crypto_create_init_func(QCryptoBlock *block,
- size_t headerlen,
- void *opaque,
- Error **errp)
+static int block_crypto_create_init_func(QCryptoBlock *block,
+ size_t headerlen,
+ void *opaque,
+ Error **errp)
{
struct BlockCryptoCreateData *data = opaque;
Error *local_error = NULL;
@@ -139,7 +139,7 @@ static ssize_t block_crypto_create_init_func(QCryptoBlock *block,
data->prealloc, 0, &local_error);
if (ret >= 0) {
- return ret;
+ return 0;
}
error:
diff --git a/block/qcow2.c b/block/qcow2.c
index d5a1e8bc43..c43238a006 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -94,9 +94,9 @@ static int qcow2_probe(const uint8_t *buf, int buf_size, const char *filename)
}
-static ssize_t qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
- uint8_t *buf, size_t buflen,
- void *opaque, Error **errp)
+static int qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
+ uint8_t *buf, size_t buflen,
+ void *opaque, Error **errp)
{
BlockDriverState *bs = opaque;
BDRVQcow2State *s = bs->opaque;
@@ -113,12 +113,12 @@ static ssize_t qcow2_crypto_hdr_read_func(QCryptoBlock *block, size_t offset,
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
}
- return buflen;
+ return 0;
}
-static ssize_t qcow2_crypto_hdr_init_func(QCryptoBlock *block, size_t headerlen,
- void *opaque, Error **errp)
+static int qcow2_crypto_hdr_init_func(QCryptoBlock *block, size_t headerlen,
+ void *opaque, Error **errp)
{
BlockDriverState *bs = opaque;
BDRVQcow2State *s = bs->opaque;
@@ -151,13 +151,13 @@ static ssize_t qcow2_crypto_hdr_init_func(QCryptoBlock *block, size_t headerlen,
return -1;
}
- return ret;
+ return 0;
}
-static ssize_t qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
- const uint8_t *buf, size_t buflen,
- void *opaque, Error **errp)
+static int qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
+ const uint8_t *buf, size_t buflen,
+ void *opaque, Error **errp)
{
BlockDriverState *bs = opaque;
BDRVQcow2State *s = bs->opaque;
@@ -174,7 +174,7 @@ static ssize_t qcow2_crypto_hdr_write_func(QCryptoBlock *block, size_t offset,
error_setg_errno(errp, -ret, "Could not read encryption header");
return -1;
}
- return buflen;
+ return 0;
}
static QDict*
diff --git a/crypto/block-luks.c b/crypto/block-luks.c
index fe8f04ffb2..f62be6836b 100644
--- a/crypto/block-luks.c
+++ b/crypto/block-luks.c
@@ -495,7 +495,7 @@ qcrypto_block_luks_load_header(QCryptoBlock *block,
void *opaque,
Error **errp)
{
- ssize_t rv;
+ int rv;
size_t i;
QCryptoBlockLUKS *luks = block->opaque;
@@ -856,7 +856,7 @@ qcrypto_block_luks_store_key(QCryptoBlock *block,
QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
splitkey, splitkeylen,
opaque,
- errp) != splitkeylen) {
+ errp) < 0) {
goto cleanup;
}
@@ -903,7 +903,7 @@ qcrypto_block_luks_load_key(QCryptoBlock *block,
g_autofree uint8_t *splitkey = NULL;
size_t splitkeylen;
g_autofree uint8_t *possiblekey = NULL;
- ssize_t rv;
+ int rv;
g_autoptr(QCryptoCipher) cipher = NULL;
uint8_t keydigest[QCRYPTO_BLOCK_LUKS_DIGEST_LEN];
g_autoptr(QCryptoIVGen) ivgen = NULL;
@@ -1193,7 +1193,7 @@ qcrypto_block_luks_erase_key(QCryptoBlock *block,
garbagesplitkey,
splitkeylen,
opaque,
- &local_err) != splitkeylen) {
+ &local_err) < 0) {
error_propagate(errp, local_err);
return -1;
}
diff --git a/crypto/block.c b/crypto/block.c
index eb057948b5..7bb4b74a37 100644
--- a/crypto/block.c
+++ b/crypto/block.c
@@ -115,7 +115,7 @@ QCryptoBlock *qcrypto_block_create(QCryptoBlockCreateOptions *options,
}
-static ssize_t qcrypto_block_headerlen_hdr_init_func(QCryptoBlock *block,
+static int qcrypto_block_headerlen_hdr_init_func(QCryptoBlock *block,
size_t headerlen, void *opaque, Error **errp)
{
size_t *headerlenp = opaque;
@@ -126,12 +126,12 @@ static ssize_t qcrypto_block_headerlen_hdr_init_func(QCryptoBlock *block,
}
-static ssize_t qcrypto_block_headerlen_hdr_write_func(QCryptoBlock *block,
+static int qcrypto_block_headerlen_hdr_write_func(QCryptoBlock *block,
size_t offset, const uint8_t *buf, size_t buflen,
void *opaque, Error **errp)
{
/* Discard the bytes, we're not actually writing to an image */
- return buflen;
+ return 0;
}
diff --git a/tests/unit/test-crypto-block.c b/tests/unit/test-crypto-block.c
index 3b1f0d509f..3417b67be5 100644
--- a/tests/unit/test-crypto-block.c
+++ b/tests/unit/test-crypto-block.c
@@ -188,12 +188,12 @@ static struct QCryptoBlockTestData {
};
-static ssize_t test_block_read_func(QCryptoBlock *block,
- size_t offset,
- uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp)
+static int test_block_read_func(QCryptoBlock *block,
+ size_t offset,
+ uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
{
Buffer *header = opaque;
@@ -201,14 +201,14 @@ static ssize_t test_block_read_func(QCryptoBlock *block,
memcpy(buf, header->buffer + offset, buflen);
- return buflen;
+ return 0;
}
-static ssize_t test_block_init_func(QCryptoBlock *block,
- size_t headerlen,
- void *opaque,
- Error **errp)
+static int test_block_init_func(QCryptoBlock *block,
+ size_t headerlen,
+ void *opaque,
+ Error **errp)
{
Buffer *header = opaque;
@@ -216,16 +216,16 @@ static ssize_t test_block_init_func(QCryptoBlock *block,
buffer_reserve(header, headerlen);
- return headerlen;
+ return 0;
}
-static ssize_t test_block_write_func(QCryptoBlock *block,
- size_t offset,
- const uint8_t *buf,
- size_t buflen,
- void *opaque,
- Error **errp)
+static int test_block_write_func(QCryptoBlock *block,
+ size_t offset,
+ const uint8_t *buf,
+ size_t buflen,
+ void *opaque,
+ Error **errp)
{
Buffer *header = opaque;
@@ -234,7 +234,7 @@ static ssize_t test_block_write_func(QCryptoBlock *block,
memcpy(header->buffer + offset, buf, buflen);
header->offset = offset + buflen;
- return buflen;
+ return 0;
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 05/35] block: Make bdrv_co_pwrite() take a const buffer
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (3 preceding siblings ...)
2022-07-12 18:05 ` [PULL 04/35] crypto: Make block callbacks " Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 06/35] block: Make 'bytes' param of bdrv_co_{pread, pwrite, preadv, pwritev}() an int64_t Hanna Reitz
` (30 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
It does not mutate the buffer.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-6-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/block/block_int-io.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/block/block_int-io.h b/include/block/block_int-io.h
index ded29e7494..5474293c4f 100644
--- a/include/block/block_int-io.h
+++ b/include/block/block_int-io.h
@@ -65,7 +65,7 @@ static inline int coroutine_fn bdrv_co_pread(BdrvChild *child,
}
static inline int coroutine_fn bdrv_co_pwrite(BdrvChild *child,
- int64_t offset, unsigned int bytes, void *buf, BdrvRequestFlags flags)
+ int64_t offset, unsigned int bytes, const void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 06/35] block: Make 'bytes' param of bdrv_co_{pread, pwrite, preadv, pwritev}() an int64_t
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (4 preceding siblings ...)
2022-07-12 18:05 ` [PULL 05/35] block: Make bdrv_co_pwrite() take a const buffer Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 07/35] block: Implement bdrv_{pread, pwrite, pwrite_zeroes}() using generated_co_wrapper Hanna Reitz
` (29 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
For consistency with other I/O functions, and in preparation to
implement bdrv_{pread,pwrite}() using generated_co_wrapper.
unsigned int fits in int64_t, so all callers remain correct.
bdrv_check_request32() is called further down the stack and causes -EIO
to be returned if 'bytes' is negative or greater than
BDRV_REQUEST_MAX_BYTES, which in turns never exceeds SIZE_MAX.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220609152744.3891847-7-afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 4 ++--
include/block/block_int-io.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 830ecaa733..3f41238b33 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -91,11 +91,11 @@ int coroutine_fn blk_co_do_flush(BlockBackend *blk);
*/
int generated_co_wrapper
-bdrv_preadv(BdrvChild *child, int64_t offset, unsigned int bytes,
+bdrv_preadv(BdrvChild *child, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, BdrvRequestFlags flags);
int generated_co_wrapper
-bdrv_pwritev(BdrvChild *child, int64_t offset, unsigned int bytes,
+bdrv_pwritev(BdrvChild *child, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, BdrvRequestFlags flags);
int generated_co_wrapper
diff --git a/include/block/block_int-io.h b/include/block/block_int-io.h
index 5474293c4f..91cdd61692 100644
--- a/include/block/block_int-io.h
+++ b/include/block/block_int-io.h
@@ -56,7 +56,7 @@ int coroutine_fn bdrv_co_pwritev_part(BdrvChild *child,
QEMUIOVector *qiov, size_t qiov_offset, BdrvRequestFlags flags);
static inline int coroutine_fn bdrv_co_pread(BdrvChild *child,
- int64_t offset, unsigned int bytes, void *buf, BdrvRequestFlags flags)
+ int64_t offset, int64_t bytes, void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
@@ -65,7 +65,7 @@ static inline int coroutine_fn bdrv_co_pread(BdrvChild *child,
}
static inline int coroutine_fn bdrv_co_pwrite(BdrvChild *child,
- int64_t offset, unsigned int bytes, const void *buf, BdrvRequestFlags flags)
+ int64_t offset, int64_t bytes, const void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_CODE();
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 07/35] block: Implement bdrv_{pread, pwrite, pwrite_zeroes}() using generated_co_wrapper
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (5 preceding siblings ...)
2022-07-12 18:05 ` [PULL 06/35] block: Make 'bytes' param of bdrv_co_{pread, pwrite, preadv, pwritev}() an int64_t Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 08/35] block: Add bdrv_co_pwrite_sync() Hanna Reitz
` (28 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
bdrv_{pread,pwrite}() now return -EIO instead of -EINVAL when 'bytes' is
negative, making them consistent with bdrv_{preadv,pwritev}() and
bdrv_co_{pread,pwrite,preadv,pwritev}().
bdrv_pwrite_zeroes() now also calls trace_bdrv_co_pwrite_zeroes() and
clears the BDRV_REQ_MAY_UNMAP flag when appropriate, which it didn't
previously.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220609152744.3891847-8-afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/block/block-io.h | 15 +++++++++------
block/io.c | 41 ----------------------------------------
2 files changed, 9 insertions(+), 47 deletions(-)
diff --git a/include/block/block-io.h b/include/block/block-io.h
index ecce56c096..260f669d89 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -39,13 +39,16 @@
* to catch when they are accidentally called by the wrong API.
*/
-int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
- int64_t bytes, BdrvRequestFlags flags);
+int generated_co_wrapper bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
+ int64_t bytes,
+ BdrvRequestFlags flags);
int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags);
-int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
- BdrvRequestFlags flags);
-int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags);
+int generated_co_wrapper bdrv_pread(BdrvChild *child, int64_t offset,
+ int64_t bytes, void *buf,
+ BdrvRequestFlags flags);
+int generated_co_wrapper bdrv_pwrite(BdrvChild *child, int64_t offset,
+ int64_t bytes, const void *buf,
+ BdrvRequestFlags flags);
int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
const void *buf, BdrvRequestFlags flags);
/*
diff --git a/block/io.c b/block/io.c
index 86b5e8b471..9ff440e4e4 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1046,14 +1046,6 @@ static int bdrv_check_request32(int64_t offset, int64_t bytes,
return 0;
}
-int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
- int64_t bytes, BdrvRequestFlags flags)
-{
- IO_CODE();
- return bdrv_pwritev(child, offset, bytes, NULL,
- BDRV_REQ_ZERO_WRITE | flags);
-}
-
/*
* Completely zero out a block device with the help of bdrv_pwrite_zeroes.
* The operation is sped up by checking the block status and only writing
@@ -1096,39 +1088,6 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
}
}
-/* See bdrv_pwrite() for the return codes */
-int bdrv_pread(BdrvChild *child, int64_t offset, int64_t bytes, void *buf,
- BdrvRequestFlags flags)
-{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_CODE();
-
- if (bytes < 0) {
- return -EINVAL;
- }
-
- return bdrv_preadv(child, offset, bytes, &qiov, flags);
-}
-
-/* Return no. of bytes on success or < 0 on error. Important errors are:
- -EIO generic I/O error (may happen for all errors)
- -ENOMEDIUM No media inserted.
- -EINVAL Invalid offset or number of bytes
- -EACCES Trying to write a read-only device
-*/
-int bdrv_pwrite(BdrvChild *child, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags)
-{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_CODE();
-
- if (bytes < 0) {
- return -EINVAL;
- }
-
- return bdrv_pwritev(child, offset, bytes, &qiov, flags);
-}
-
/*
* Writes to the file and ensures that no writes are reordered across this
* request (acts as a barrier)
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 08/35] block: Add bdrv_co_pwrite_sync()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (6 preceding siblings ...)
2022-07-12 18:05 ` [PULL 07/35] block: Implement bdrv_{pread, pwrite, pwrite_zeroes}() using generated_co_wrapper Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 09/35] block: Use bdrv_co_pwrite_sync() when caller is coroutine_fn Hanna Reitz
` (27 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Also convert bdrv_pwrite_sync() to being implemented using
generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-9-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/block/block-io.h | 8 ++++++--
block/io.c | 9 +++++----
2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/include/block/block-io.h b/include/block/block-io.h
index 260f669d89..fd25ffa9be 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -49,8 +49,12 @@ int generated_co_wrapper bdrv_pread(BdrvChild *child, int64_t offset,
int generated_co_wrapper bdrv_pwrite(BdrvChild *child, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
-int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags);
+int generated_co_wrapper bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
+ int64_t bytes, const void *buf,
+ BdrvRequestFlags flags);
+int coroutine_fn bdrv_co_pwrite_sync(BdrvChild *child, int64_t offset,
+ int64_t bytes, const void *buf,
+ BdrvRequestFlags flags);
/*
* Efficiently zero a region of the disk image. Note that this is a regular
* I/O request like read or write and should have a reasonable size. This
diff --git a/block/io.c b/block/io.c
index 9ff440e4e4..0a8cbefe86 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1094,18 +1094,19 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
*
* Returns 0 on success, -errno in error cases.
*/
-int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags)
+int coroutine_fn bdrv_co_pwrite_sync(BdrvChild *child, int64_t offset,
+ int64_t bytes, const void *buf,
+ BdrvRequestFlags flags)
{
int ret;
IO_CODE();
- ret = bdrv_pwrite(child, offset, bytes, buf, flags);
+ ret = bdrv_co_pwrite(child, offset, bytes, buf, flags);
if (ret < 0) {
return ret;
}
- ret = bdrv_flush(child->bs);
+ ret = bdrv_co_flush(child->bs);
if (ret < 0) {
return ret;
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 09/35] block: Use bdrv_co_pwrite_sync() when caller is coroutine_fn
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (7 preceding siblings ...)
2022-07-12 18:05 ` [PULL 08/35] block: Add bdrv_co_pwrite_sync() Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 10/35] block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty() Hanna Reitz
` (26 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Convert uses of bdrv_pwrite_sync() into bdrv_co_pwrite_sync() when the
callers are already coroutine_fn.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-10-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/parallels.c | 2 +-
block/qcow2-snapshot.c | 6 +++---
block/qcow2.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/block/parallels.c b/block/parallels.c
index f22444efff..8b23b9580d 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -481,7 +481,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs,
ret = 0;
if (flush_bat) {
- ret = bdrv_pwrite_sync(bs->file, 0, s->header_size, s->header, 0);
+ ret = bdrv_co_pwrite_sync(bs->file, 0, s->header_size, s->header, 0);
if (ret < 0) {
res->check_errors++;
goto out;
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 60e0461632..d1d46facbf 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -512,9 +512,9 @@ int coroutine_fn qcow2_check_read_snapshot_table(BlockDriverState *bs,
assert(fix & BDRV_FIX_ERRORS);
snapshot_table_pointer.nb_snapshots = cpu_to_be32(s->nb_snapshots);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
- sizeof(snapshot_table_pointer.nb_snapshots),
- &snapshot_table_pointer.nb_snapshots, 0);
+ ret = bdrv_co_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
+ sizeof(snapshot_table_pointer.nb_snapshots),
+ &snapshot_table_pointer.nb_snapshots, 0);
if (ret < 0) {
result->check_errors++;
fprintf(stderr, "ERROR failed to update the snapshot count in the "
diff --git a/block/qcow2.c b/block/qcow2.c
index c43238a006..f2fb54c51f 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -4551,8 +4551,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
/* write updated header.size */
offset = cpu_to_be64(offset);
- ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
- sizeof(offset), &offset, 0);
+ ret = bdrv_co_pwrite_sync(bs->file, offsetof(QCowHeader, size),
+ sizeof(offset), &offset, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to update the image size");
goto fail;
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 10/35] block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (8 preceding siblings ...)
2022-07-12 18:05 ` [PULL 09/35] block: Use bdrv_co_pwrite_sync() when caller is coroutine_fn Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 11/35] tests/qemu-iotests: hotfix for 307, 223 output Hanna Reitz
` (25 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Use bdrv_pwrite_sync() instead of calling bdrv_pwrite() and bdrv_flush()
separately.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-11-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/qcow2.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index f2fb54c51f..90a2dd406b 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -516,12 +516,9 @@ int qcow2_mark_dirty(BlockDriverState *bs)
}
val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
- ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
- sizeof(val), &val, 0);
- if (ret < 0) {
- return ret;
- }
- ret = bdrv_flush(bs->file->bs);
+ ret = bdrv_pwrite_sync(bs->file,
+ offsetof(QCowHeader, incompatible_features),
+ sizeof(val), &val, 0);
if (ret < 0) {
return ret;
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 11/35] tests/qemu-iotests: hotfix for 307, 223 output
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (9 preceding siblings ...)
2022-07-12 18:05 ` [PULL 10/35] block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty() Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 12/35] tests/qemu-iotests: skip 108 when FUSE is not loaded Hanna Reitz
` (24 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: John Snow <jsnow@redhat.com>
Fixes: 58a6fdcc
Signed-off-by: John Snow <jsnow@redhat.com>
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220616142659.3184115-2-jsnow@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
tests/qemu-iotests/223.out | 4 ++--
tests/qemu-iotests/307.out | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/tests/qemu-iotests/223.out b/tests/qemu-iotests/223.out
index 0647941531..26fb347c5d 100644
--- a/tests/qemu-iotests/223.out
+++ b/tests/qemu-iotests/223.out
@@ -93,7 +93,7 @@ exports available: 3
export: 'n2'
description: some text
size: 4194304
- flags: 0xced ( flush fua trim zeroes df cache fast-zero )
+ flags: 0xded ( flush fua trim zeroes df multi cache fast-zero )
min block: 1
opt block: 4096
max block: 33554432
@@ -212,7 +212,7 @@ exports available: 3
export: 'n2'
description: some text
size: 4194304
- flags: 0xced ( flush fua trim zeroes df cache fast-zero )
+ flags: 0xded ( flush fua trim zeroes df multi cache fast-zero )
min block: 1
opt block: 4096
max block: 33554432
diff --git a/tests/qemu-iotests/307.out b/tests/qemu-iotests/307.out
index ec8d2be0e0..390f05d1b7 100644
--- a/tests/qemu-iotests/307.out
+++ b/tests/qemu-iotests/307.out
@@ -83,7 +83,7 @@ exports available: 2
export: 'export1'
description: This is the writable second export
size: 67108864
- flags: 0xced ( flush fua trim zeroes df cache fast-zero )
+ flags: 0xded ( flush fua trim zeroes df multi cache fast-zero )
min block: XXX
opt block: XXX
max block: XXX
@@ -109,7 +109,7 @@ exports available: 1
export: 'export1'
description: This is the writable second export
size: 67108864
- flags: 0xced ( flush fua trim zeroes df cache fast-zero )
+ flags: 0xded ( flush fua trim zeroes df multi cache fast-zero )
min block: XXX
opt block: XXX
max block: XXX
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 12/35] tests/qemu-iotests: skip 108 when FUSE is not loaded
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (10 preceding siblings ...)
2022-07-12 18:05 ` [PULL 11/35] tests/qemu-iotests: hotfix for 307, 223 output Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 13/35] block: Make blk_{pread,pwrite}() return 0 on success Hanna Reitz
` (23 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: John Snow <jsnow@redhat.com>
In certain container environments we may not have FUSE at all, so skip
the test in this circumstance too.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20220616142659.3184115-3-jsnow@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
tests/qemu-iotests/108 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tests/qemu-iotests/108 b/tests/qemu-iotests/108
index 9e923d6a59..54e935acf2 100755
--- a/tests/qemu-iotests/108
+++ b/tests/qemu-iotests/108
@@ -60,6 +60,11 @@ if sudo -n losetup &>/dev/null; then
else
loopdev=false
+ # Check for usable FUSE in the host environment:
+ if test ! -c "/dev/fuse"; then
+ _notrun 'No passwordless sudo nor usable /dev/fuse'
+ fi
+
# QSD --export fuse will either yield "Parameter 'id' is missing"
# or "Invalid parameter 'fuse'", depending on whether there is
# FUSE support or not.
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 13/35] block: Make blk_{pread,pwrite}() return 0 on success
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (11 preceding siblings ...)
2022-07-12 18:05 ` [PULL 12/35] tests/qemu-iotests: skip 108 when FUSE is not loaded Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 14/35] block: Add a 'flags' param to blk_pread() Hanna Reitz
` (22 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
They currently return the value of their 'bytes' parameter on success.
Make them return 0 instead, for consistency with other I/O functions and
in preparation to implement them using generated_co_wrapper. This also
makes it clear that short reads/writes are not possible.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220705161527.1054072-2-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block.c | 8 +++++---
block/block-backend.c | 7 ++-----
block/qcow.c | 6 +++---
hw/block/m25p80.c | 2 +-
hw/misc/mac_via.c | 4 ++--
hw/misc/sifive_u_otp.c | 2 +-
hw/nvram/eeprom_at24c.c | 8 ++++----
hw/nvram/spapr_nvram.c | 14 +++++++-------
hw/ppc/pnv_pnor.c | 2 +-
qemu-img.c | 25 +++++++++----------------
qemu-io-cmds.c | 18 ++++++++++++------
tests/unit/test-block-iothread.c | 4 ++--
12 files changed, 49 insertions(+), 51 deletions(-)
diff --git a/block.c b/block.c
index 2c00dddd80..0fd830e2e2 100644
--- a/block.c
+++ b/block.c
@@ -1045,14 +1045,16 @@ static int find_image_format(BlockBackend *file, const char *filename,
return ret;
}
- drv = bdrv_probe_all(buf, ret, filename);
+ drv = bdrv_probe_all(buf, sizeof(buf), filename);
if (!drv) {
error_setg(errp, "Could not determine image format: No compatible "
"driver found");
- ret = -ENOENT;
+ *pdrv = NULL;
+ return -ENOENT;
}
+
*pdrv = drv;
- return ret;
+ return 0;
}
/**
diff --git a/block/block-backend.c b/block/block-backend.c
index f425b00793..4c5e130615 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1573,19 +1573,16 @@ int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes)
ret = blk_do_preadv(blk, offset, bytes, &qiov, 0);
blk_dec_in_flight(blk);
- return ret < 0 ? ret : bytes;
+ return ret;
}
int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int bytes,
BdrvRequestFlags flags)
{
- int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_OR_GS_CODE();
- ret = blk_pwritev_part(blk, offset, bytes, &qiov, 0, flags);
-
- return ret < 0 ? ret : bytes;
+ return blk_pwritev_part(blk, offset, bytes, &qiov, 0, flags);
}
int64_t blk_getlength(BlockBackend *blk)
diff --git a/block/qcow.c b/block/qcow.c
index c646d6b16d..25a43353c1 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -891,14 +891,14 @@ static int coroutine_fn qcow_co_create(BlockdevCreateOptions *opts,
/* write all the data */
ret = blk_pwrite(qcow_blk, 0, &header, sizeof(header), 0);
- if (ret != sizeof(header)) {
+ if (ret < 0) {
goto exit;
}
if (qcow_opts->has_backing_file) {
ret = blk_pwrite(qcow_blk, sizeof(header),
qcow_opts->backing_file, backing_filename_len, 0);
- if (ret != backing_filename_len) {
+ if (ret < 0) {
goto exit;
}
}
@@ -908,7 +908,7 @@ static int coroutine_fn qcow_co_create(BlockdevCreateOptions *opts,
i++) {
ret = blk_pwrite(qcow_blk, header_size + BDRV_SECTOR_SIZE * i,
tmp, BDRV_SECTOR_SIZE, 0);
- if (ret != BDRV_SECTOR_SIZE) {
+ if (ret < 0) {
g_free(tmp);
goto exit;
}
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 3045dda53b..755134313d 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -1532,7 +1532,7 @@ static void m25p80_realize(SSIPeripheral *ss, Error **errp)
trace_m25p80_binding(s);
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size) != s->size) {
+ if (blk_pread(s->blk, 0, s->storage, s->size) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c
index 525e38ce93..c32325dcaf 100644
--- a/hw/misc/mac_via.c
+++ b/hw/misc/mac_via.c
@@ -1029,8 +1029,8 @@ static void mos6522_q800_via1_realize(DeviceState *dev, Error **errp)
return;
}
- len = blk_pread(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM));
- if (len != sizeof(v1s->PRAM)) {
+ ret = blk_pread(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM));
+ if (ret < 0) {
error_setg(errp, "can't read PRAM contents");
return;
}
diff --git a/hw/misc/sifive_u_otp.c b/hw/misc/sifive_u_otp.c
index 6d5f84e6c2..535acde08b 100644
--- a/hw/misc/sifive_u_otp.c
+++ b/hw/misc/sifive_u_otp.c
@@ -240,7 +240,7 @@ static void sifive_u_otp_realize(DeviceState *dev, Error **errp)
return;
}
- if (blk_pread(s->blk, 0, s->fuse, filesize) != filesize) {
+ if (blk_pread(s->blk, 0, s->fuse, filesize) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/nvram/eeprom_at24c.c b/hw/nvram/eeprom_at24c.c
index d695f6ae89..8fd9f97eee 100644
--- a/hw/nvram/eeprom_at24c.c
+++ b/hw/nvram/eeprom_at24c.c
@@ -64,8 +64,8 @@ int at24c_eeprom_event(I2CSlave *s, enum i2c_event event)
case I2C_START_RECV:
DPRINTK("clear\n");
if (ee->blk && ee->changed) {
- int len = blk_pwrite(ee->blk, 0, ee->mem, ee->rsize, 0);
- if (len != ee->rsize) {
+ int ret = blk_pwrite(ee->blk, 0, ee->mem, ee->rsize, 0);
+ if (ret < 0) {
ERR(TYPE_AT24C_EE
" : failed to write backing file\n");
}
@@ -165,9 +165,9 @@ void at24c_eeprom_reset(DeviceState *state)
memset(ee->mem, 0, ee->rsize);
if (ee->blk) {
- int len = blk_pread(ee->blk, 0, ee->mem, ee->rsize);
+ int ret = blk_pread(ee->blk, 0, ee->mem, ee->rsize);
- if (len != ee->rsize) {
+ if (ret < 0) {
ERR(TYPE_AT24C_EE
" : Failed initial sync with backing file\n");
}
diff --git a/hw/nvram/spapr_nvram.c b/hw/nvram/spapr_nvram.c
index 18b43be7f6..59d2e7b705 100644
--- a/hw/nvram/spapr_nvram.c
+++ b/hw/nvram/spapr_nvram.c
@@ -103,7 +103,7 @@ static void rtas_nvram_store(PowerPCCPU *cpu, SpaprMachineState *spapr,
{
SpaprNvram *nvram = spapr->nvram;
hwaddr offset, buffer, len;
- int alen;
+ int ret;
void *membuf;
if ((nargs != 3) || (nret != 2)) {
@@ -128,9 +128,9 @@ static void rtas_nvram_store(PowerPCCPU *cpu, SpaprMachineState *spapr,
membuf = cpu_physical_memory_map(buffer, &len, false);
- alen = len;
+ ret = 0;
if (nvram->blk) {
- alen = blk_pwrite(nvram->blk, offset, membuf, len, 0);
+ ret = blk_pwrite(nvram->blk, offset, membuf, len, 0);
}
assert(nvram->buf);
@@ -138,8 +138,8 @@ static void rtas_nvram_store(PowerPCCPU *cpu, SpaprMachineState *spapr,
cpu_physical_memory_unmap(membuf, len, 0, len);
- rtas_st(rets, 0, (alen < len) ? RTAS_OUT_HW_ERROR : RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, (alen < 0) ? 0 : alen);
+ rtas_st(rets, 0, (ret < 0) ? RTAS_OUT_HW_ERROR : RTAS_OUT_SUCCESS);
+ rtas_st(rets, 1, (ret < 0) ? 0 : len);
}
static void spapr_nvram_realize(SpaprVioDevice *dev, Error **errp)
@@ -179,9 +179,9 @@ static void spapr_nvram_realize(SpaprVioDevice *dev, Error **errp)
}
if (nvram->blk) {
- int alen = blk_pread(nvram->blk, 0, nvram->buf, nvram->size);
+ ret = blk_pread(nvram->blk, 0, nvram->buf, nvram->size);
- if (alen != nvram->size) {
+ if (ret < 0) {
error_setg(errp, "can't read spapr-nvram contents");
return;
}
diff --git a/hw/ppc/pnv_pnor.c b/hw/ppc/pnv_pnor.c
index 83ecccca28..1fb748afef 100644
--- a/hw/ppc/pnv_pnor.c
+++ b/hw/ppc/pnv_pnor.c
@@ -99,7 +99,7 @@ static void pnv_pnor_realize(DeviceState *dev, Error **errp)
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size) != s->size) {
+ if (blk_pread(s->blk, 0, s->storage, s->size) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/qemu-img.c b/qemu-img.c
index 4cf4d2423d..2dc07e5ac3 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -5120,30 +5120,23 @@ static int img_dd(int argc, char **argv)
in.buf = g_new(uint8_t, in.bsz);
for (out_pos = 0; in_pos < size; block_count++) {
- int in_ret, out_ret;
+ int bytes = (in_pos + in.bsz > size) ? size - in_pos : in.bsz;
- if (in_pos + in.bsz > size) {
- in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos);
- } else {
- in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz);
- }
- if (in_ret < 0) {
+ ret = blk_pread(blk1, in_pos, in.buf, bytes);
+ if (ret < 0) {
error_report("error while reading from input image file: %s",
- strerror(-in_ret));
- ret = -1;
+ strerror(-ret));
goto out;
}
- in_pos += in_ret;
+ in_pos += bytes;
- out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0);
-
- if (out_ret < 0) {
+ ret = blk_pwrite(blk2, out_pos, in.buf, bytes, 0);
+ if (ret < 0) {
error_report("error while writing to output image file: %s",
- strerror(-out_ret));
- ret = -1;
+ strerror(-ret));
goto out;
}
- out_pos += out_ret;
+ out_pos += bytes;
}
out:
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 2f0d8ac25a..443f22c732 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -541,28 +541,34 @@ fail:
static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
int64_t bytes, int64_t *total)
{
+ int ret;
+
if (bytes > INT_MAX) {
return -ERANGE;
}
- *total = blk_pread(blk, offset, (uint8_t *)buf, bytes);
- if (*total < 0) {
- return *total;
+ ret = blk_pread(blk, offset, (uint8_t *)buf, bytes);
+ if (ret < 0) {
+ return ret;
}
+ *total = bytes;
return 1;
}
static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset,
int64_t bytes, int flags, int64_t *total)
{
+ int ret;
+
if (bytes > INT_MAX) {
return -ERANGE;
}
- *total = blk_pwrite(blk, offset, (uint8_t *)buf, bytes, flags);
- if (*total < 0) {
- return *total;
+ ret = blk_pwrite(blk, offset, (uint8_t *)buf, bytes, flags);
+ if (ret < 0) {
+ return ret;
}
+ *total = bytes;
return 1;
}
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index a5c163af7e..3c1a3f64a2 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -117,7 +117,7 @@ static void test_sync_op_blk_pread(BlockBackend *blk)
/* Success */
ret = blk_pread(blk, 0, buf, sizeof(buf));
- g_assert_cmpint(ret, ==, 512);
+ g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
ret = blk_pread(blk, -2, buf, sizeof(buf));
@@ -131,7 +131,7 @@ static void test_sync_op_blk_pwrite(BlockBackend *blk)
/* Success */
ret = blk_pwrite(blk, 0, buf, sizeof(buf), 0);
- g_assert_cmpint(ret, ==, 512);
+ g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
ret = blk_pwrite(blk, -2, buf, sizeof(buf), 0);
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 14/35] block: Add a 'flags' param to blk_pread()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (12 preceding siblings ...)
2022-07-12 18:05 ` [PULL 13/35] block: Make blk_{pread,pwrite}() return 0 on success Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 15/35] block: Change blk_{pread,pwrite}() param order Hanna Reitz
` (21 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
For consistency with other I/O functions, and in preparation to
implement it using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes; @@
- blk_pread(blk, offset, buf, bytes)
+ blk_pread(blk, offset, buf, bytes, 0)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-3-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 3 ++-
block.c | 2 +-
block/block-backend.c | 5 +++--
block/commit.c | 2 +-
block/export/fuse.c | 2 +-
hw/arm/allwinner-h3.c | 2 +-
hw/arm/aspeed.c | 2 +-
hw/block/block.c | 2 +-
hw/block/fdc.c | 6 +++---
hw/block/hd-geometry.c | 2 +-
hw/block/m25p80.c | 2 +-
hw/block/nand.c | 12 ++++++------
hw/block/onenand.c | 12 ++++++------
hw/ide/atapi.c | 4 ++--
hw/misc/mac_via.c | 2 +-
hw/misc/sifive_u_otp.c | 4 ++--
hw/nvram/eeprom_at24c.c | 2 +-
hw/nvram/spapr_nvram.c | 2 +-
hw/nvram/xlnx-bbram.c | 2 +-
hw/nvram/xlnx-efuse.c | 2 +-
hw/ppc/pnv_pnor.c | 2 +-
hw/sd/sd.c | 2 +-
migration/block.c | 4 ++--
nbd/server.c | 4 ++--
qemu-img.c | 12 ++++++------
qemu-io-cmds.c | 2 +-
tests/unit/test-block-iothread.c | 4 ++--
27 files changed, 52 insertions(+), 50 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index ccef514023..5c5c108e0d 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -101,7 +101,8 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
* the "I/O or GS" API.
*/
-int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes);
+int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes,
+ BdrvRequestFlags flags);
int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int bytes,
BdrvRequestFlags flags);
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
diff --git a/block.c b/block.c
index 0fd830e2e2..ed701b4889 100644
--- a/block.c
+++ b/block.c
@@ -1037,7 +1037,7 @@ static int find_image_format(BlockBackend *file, const char *filename,
return ret;
}
- ret = blk_pread(file, 0, buf, sizeof(buf));
+ ret = blk_pread(file, 0, buf, sizeof(buf), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read image for determining its "
"format");
diff --git a/block/block-backend.c b/block/block-backend.c
index 4c5e130615..bdde90d235 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1563,14 +1563,15 @@ BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE, cb, opaque);
}
-int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes)
+int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes,
+ BdrvRequestFlags flags)
{
int ret;
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_OR_GS_CODE();
blk_inc_in_flight(blk);
- ret = blk_do_preadv(blk, offset, bytes, &qiov, 0);
+ ret = blk_do_preadv(blk, offset, bytes, &qiov, flags);
blk_dec_in_flight(blk);
return ret;
diff --git a/block/commit.c b/block/commit.c
index 851d1c557a..e5b3ad08da 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -527,7 +527,7 @@ int bdrv_commit(BlockDriverState *bs)
goto ro_cleanup;
}
if (ret) {
- ret = blk_pread(src, offset, buf, n);
+ ret = blk_pread(src, offset, buf, n, 0);
if (ret < 0) {
goto ro_cleanup;
}
diff --git a/block/export/fuse.c b/block/export/fuse.c
index e80b24a867..dcf8f225f3 100644
--- a/block/export/fuse.c
+++ b/block/export/fuse.c
@@ -554,7 +554,7 @@ static void fuse_read(fuse_req_t req, fuse_ino_t inode,
return;
}
- ret = blk_pread(exp->common.blk, offset, buf, size);
+ ret = blk_pread(exp->common.blk, offset, buf, size, 0);
if (ret >= 0) {
fuse_reply_buf(req, buf, size);
} else {
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index 318ed4348c..788083b6fa 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -174,7 +174,7 @@ void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk)
const int64_t rom_size = 32 * KiB;
g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
- if (blk_pread(blk, 8 * KiB, buffer, rom_size) < 0) {
+ if (blk_pread(blk, 8 * KiB, buffer, rom_size, 0) < 0) {
error_setg(&error_fatal, "%s: failed to read BlockBackend data",
__func__);
return;
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 6fe9b13548..3a2f1013e3 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -253,7 +253,7 @@ static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
}
storage = g_malloc0(rom_size);
- if (blk_pread(blk, 0, storage, rom_size) < 0) {
+ if (blk_pread(blk, 0, storage, rom_size, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/block/block.c b/hw/block/block.c
index 25f45df723..effb89910c 100644
--- a/hw/block/block.c
+++ b/hw/block/block.c
@@ -53,7 +53,7 @@ bool blk_check_size_and_read_all(BlockBackend *blk, void *buf, hwaddr size,
* block device and read only on demand.
*/
assert(size <= BDRV_REQUEST_MAX_BYTES);
- ret = blk_pread(blk, 0, buf, size);
+ ret = blk_pread(blk, 0, buf, size, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "can't read block backend");
return false;
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index 57bb355794..52f278ed82 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -1628,8 +1628,8 @@ int fdctrl_transfer_handler(void *opaque, int nchan, int dma_pos, int dma_len)
if (fdctrl->data_dir != FD_DIR_WRITE ||
len < FD_SECTOR_LEN || rel_pos != 0) {
/* READ & SCAN commands and realign to a sector for WRITE */
- if (blk_pread(cur_drv->blk, fd_offset(cur_drv),
- fdctrl->fifo, BDRV_SECTOR_SIZE) < 0) {
+ if (blk_pread(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
+ BDRV_SECTOR_SIZE, 0) < 0) {
FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
fd_sector(cur_drv));
/* Sure, image size is too small... */
@@ -1741,7 +1741,7 @@ static uint32_t fdctrl_read_data(FDCtrl *fdctrl)
return 0;
}
if (blk_pread(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
- BDRV_SECTOR_SIZE)
+ BDRV_SECTOR_SIZE, 0)
< 0) {
FLOPPY_DPRINTF("error getting sector %d\n",
fd_sector(cur_drv));
diff --git a/hw/block/hd-geometry.c b/hw/block/hd-geometry.c
index dcbccee294..24933eae82 100644
--- a/hw/block/hd-geometry.c
+++ b/hw/block/hd-geometry.c
@@ -63,7 +63,7 @@ static int guess_disk_lchs(BlockBackend *blk,
blk_get_geometry(blk, &nb_sectors);
- if (blk_pread(blk, 0, buf, BDRV_SECTOR_SIZE) < 0) {
+ if (blk_pread(blk, 0, buf, BDRV_SECTOR_SIZE, 0) < 0) {
return -1;
}
/* test msdos magic */
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 755134313d..7e476b80a8 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -1532,7 +1532,7 @@ static void m25p80_realize(SSIPeripheral *ss, Error **errp)
trace_m25p80_binding(s);
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size) < 0) {
+ if (blk_pread(s->blk, 0, s->storage, s->size, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/block/nand.c b/hw/block/nand.c
index 8bc80e3514..ea3d33adf4 100644
--- a/hw/block/nand.c
+++ b/hw/block/nand.c
@@ -667,7 +667,7 @@ static void glue(nand_blk_write_, NAND_PAGE_SIZE)(NANDFlashState *s)
off = (s->addr & PAGE_MASK) + s->offset;
soff = SECTOR_OFFSET(s->addr);
if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- PAGE_SECTORS << BDRV_SECTOR_BITS) < 0) {
+ PAGE_SECTORS << BDRV_SECTOR_BITS, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
return;
}
@@ -688,7 +688,7 @@ static void glue(nand_blk_write_, NAND_PAGE_SIZE)(NANDFlashState *s)
sector = off >> 9;
soff = off & 0x1ff;
if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS) < 0) {
+ (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
return;
}
@@ -731,7 +731,7 @@ static void glue(nand_blk_erase_, NAND_PAGE_SIZE)(NANDFlashState *s)
addr = PAGE_START(addr);
page = addr >> 9;
if (blk_pread(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE) < 0) {
+ BDRV_SECTOR_SIZE, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
}
memset(iobuf + (addr & 0x1ff), 0xff, (~addr & 0x1ff) + 1);
@@ -752,7 +752,7 @@ static void glue(nand_blk_erase_, NAND_PAGE_SIZE)(NANDFlashState *s)
page = i >> 9;
if (blk_pread(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE) < 0) {
+ BDRV_SECTOR_SIZE, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
}
memset(iobuf, 0xff, ((addr - 1) & 0x1ff) + 1);
@@ -773,7 +773,7 @@ static void glue(nand_blk_load_, NAND_PAGE_SIZE)(NANDFlashState *s,
if (s->blk) {
if (s->mem_oob) {
if (blk_pread(s->blk, SECTOR(addr) << BDRV_SECTOR_BITS, s->io,
- PAGE_SECTORS << BDRV_SECTOR_BITS) < 0) {
+ PAGE_SECTORS << BDRV_SECTOR_BITS, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n",
__func__, SECTOR(addr));
}
@@ -783,7 +783,7 @@ static void glue(nand_blk_load_, NAND_PAGE_SIZE)(NANDFlashState *s,
s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset;
} else {
if (blk_pread(s->blk, PAGE_START(addr), s->io,
- (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS) < 0) {
+ (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n",
__func__, PAGE_START(addr) >> 9);
}
diff --git a/hw/block/onenand.c b/hw/block/onenand.c
index afc0cd3a0f..1225ec8076 100644
--- a/hw/block/onenand.c
+++ b/hw/block/onenand.c
@@ -230,7 +230,7 @@ static void onenand_reset(OneNANDState *s, int cold)
memset(s->blockwp, ONEN_LOCK_LOCKED, s->blocks);
if (s->blk_cur && blk_pread(s->blk_cur, 0, s->boot[0],
- 8 << BDRV_SECTOR_BITS) < 0) {
+ 8 << BDRV_SECTOR_BITS, 0) < 0) {
hw_error("%s: Loading the BootRAM failed.\n", __func__);
}
}
@@ -250,7 +250,7 @@ static inline int onenand_load_main(OneNANDState *s, int sec, int secn,
assert(UINT32_MAX >> BDRV_SECTOR_BITS > secn);
if (s->blk_cur) {
return blk_pread(s->blk_cur, sec << BDRV_SECTOR_BITS, dest,
- secn << BDRV_SECTOR_BITS) < 0;
+ secn << BDRV_SECTOR_BITS, 0) < 0;
} else if (sec + secn > s->secs_cur) {
return 1;
}
@@ -274,7 +274,7 @@ static inline int onenand_prog_main(OneNANDState *s, int sec, int secn,
uint8_t *dp = 0;
if (s->blk_cur) {
dp = g_malloc(size);
- if (!dp || blk_pread(s->blk_cur, offset, dp, size) < 0) {
+ if (!dp || blk_pread(s->blk_cur, offset, dp, size, 0) < 0) {
result = 1;
}
} else {
@@ -308,7 +308,7 @@ static inline int onenand_load_spare(OneNANDState *s, int sec, int secn,
if (s->blk_cur) {
uint32_t offset = (s->secs_cur + (sec >> 5)) << BDRV_SECTOR_BITS;
- if (blk_pread(s->blk_cur, offset, buf, BDRV_SECTOR_SIZE) < 0) {
+ if (blk_pread(s->blk_cur, offset, buf, BDRV_SECTOR_SIZE, 0) < 0) {
return 1;
}
memcpy(dest, buf + ((sec & 31) << 4), secn << 4);
@@ -333,7 +333,7 @@ static inline int onenand_prog_spare(OneNANDState *s, int sec, int secn,
if (s->blk_cur) {
dp = g_malloc(512);
if (!dp
- || blk_pread(s->blk_cur, offset, dp, BDRV_SECTOR_SIZE) < 0) {
+ || blk_pread(s->blk_cur, offset, dp, BDRV_SECTOR_SIZE, 0) < 0) {
result = 1;
} else {
dpp = dp + ((sec & 31) << 4);
@@ -375,7 +375,7 @@ static inline int onenand_erase(OneNANDState *s, int sec, int num)
goto fail;
}
if (blk_pread(s->blk_cur, erasesec << BDRV_SECTOR_BITS, tmpbuf,
- BDRV_SECTOR_SIZE) < 0) {
+ BDRV_SECTOR_SIZE, 0) < 0) {
goto fail;
}
memcpy(tmpbuf + ((sec & 31) << 4), blankbuf, 1 << 4);
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index 88b2890faf..cd4b5c6806 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -98,11 +98,11 @@ cd_read_sector_sync(IDEState *s)
switch (s->cd_sector_size) {
case 2048:
ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS,
- s->io_buffer, ATAPI_SECTOR_SIZE);
+ s->io_buffer, ATAPI_SECTOR_SIZE, 0);
break;
case 2352:
ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS,
- s->io_buffer + 16, ATAPI_SECTOR_SIZE);
+ s->io_buffer + 16, ATAPI_SECTOR_SIZE, 0);
if (ret >= 0) {
cd_data_to_raw(s->io_buffer, s->lba);
}
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c
index c32325dcaf..252b171e44 100644
--- a/hw/misc/mac_via.c
+++ b/hw/misc/mac_via.c
@@ -1029,7 +1029,7 @@ static void mos6522_q800_via1_realize(DeviceState *dev, Error **errp)
return;
}
- ret = blk_pread(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM));
+ ret = blk_pread(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM), 0);
if (ret < 0) {
error_setg(errp, "can't read PRAM contents");
return;
diff --git a/hw/misc/sifive_u_otp.c b/hw/misc/sifive_u_otp.c
index 535acde08b..c730bb1ae0 100644
--- a/hw/misc/sifive_u_otp.c
+++ b/hw/misc/sifive_u_otp.c
@@ -65,7 +65,7 @@ static uint64_t sifive_u_otp_read(void *opaque, hwaddr addr, unsigned int size)
int32_t buf;
if (blk_pread(s->blk, s->pa * SIFIVE_U_OTP_FUSE_WORD, &buf,
- SIFIVE_U_OTP_FUSE_WORD) < 0) {
+ SIFIVE_U_OTP_FUSE_WORD, 0) < 0) {
error_report("read error index<%d>", s->pa);
return 0xff;
}
@@ -240,7 +240,7 @@ static void sifive_u_otp_realize(DeviceState *dev, Error **errp)
return;
}
- if (blk_pread(s->blk, 0, s->fuse, filesize) < 0) {
+ if (blk_pread(s->blk, 0, s->fuse, filesize, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/nvram/eeprom_at24c.c b/hw/nvram/eeprom_at24c.c
index 8fd9f97eee..df3eef1389 100644
--- a/hw/nvram/eeprom_at24c.c
+++ b/hw/nvram/eeprom_at24c.c
@@ -165,7 +165,7 @@ void at24c_eeprom_reset(DeviceState *state)
memset(ee->mem, 0, ee->rsize);
if (ee->blk) {
- int ret = blk_pread(ee->blk, 0, ee->mem, ee->rsize);
+ int ret = blk_pread(ee->blk, 0, ee->mem, ee->rsize, 0);
if (ret < 0) {
ERR(TYPE_AT24C_EE
diff --git a/hw/nvram/spapr_nvram.c b/hw/nvram/spapr_nvram.c
index 59d2e7b705..d035067e9b 100644
--- a/hw/nvram/spapr_nvram.c
+++ b/hw/nvram/spapr_nvram.c
@@ -179,7 +179,7 @@ static void spapr_nvram_realize(SpaprVioDevice *dev, Error **errp)
}
if (nvram->blk) {
- ret = blk_pread(nvram->blk, 0, nvram->buf, nvram->size);
+ ret = blk_pread(nvram->blk, 0, nvram->buf, nvram->size, 0);
if (ret < 0) {
error_setg(errp, "can't read spapr-nvram contents");
diff --git a/hw/nvram/xlnx-bbram.c b/hw/nvram/xlnx-bbram.c
index 6ed32adad9..cb245b864c 100644
--- a/hw/nvram/xlnx-bbram.c
+++ b/hw/nvram/xlnx-bbram.c
@@ -124,7 +124,7 @@ static void bbram_bdrv_read(XlnxBBRam *s, Error **errp)
blk_name(s->blk));
}
- if (blk_pread(s->blk, 0, ram, nr) < 0) {
+ if (blk_pread(s->blk, 0, ram, nr, 0) < 0) {
error_setg(errp,
"%s: Failed to read %u bytes from BBRAM backstore.",
blk_name(s->blk), nr);
diff --git a/hw/nvram/xlnx-efuse.c b/hw/nvram/xlnx-efuse.c
index a0fd77b586..edaac9cf7c 100644
--- a/hw/nvram/xlnx-efuse.c
+++ b/hw/nvram/xlnx-efuse.c
@@ -77,7 +77,7 @@ static int efuse_bdrv_read(XlnxEFuse *s, Error **errp)
blk_name(s->blk));
}
- if (blk_pread(s->blk, 0, ram, nr) < 0) {
+ if (blk_pread(s->blk, 0, ram, nr, 0) < 0) {
error_setg(errp, "%s: Failed to read %u bytes from eFUSE backstore.",
blk_name(s->blk), nr);
return -1;
diff --git a/hw/ppc/pnv_pnor.c b/hw/ppc/pnv_pnor.c
index 1fb748afef..f341f5a9c9 100644
--- a/hw/ppc/pnv_pnor.c
+++ b/hw/ppc/pnv_pnor.c
@@ -99,7 +99,7 @@ static void pnv_pnor_realize(DeviceState *dev, Error **errp)
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size) < 0) {
+ if (blk_pread(s->blk, 0, s->storage, s->size, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 8e6fa09151..701170bf37 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -752,7 +752,7 @@ void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert)
static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len)
{
trace_sdcard_read_block(addr, len);
- if (!sd->blk || blk_pread(sd->blk, addr, sd->data, len) < 0) {
+ if (!sd->blk || blk_pread(sd->blk, addr, sd->data, len, 0) < 0) {
fprintf(stderr, "sd_blk_read: read error on host side\n");
}
}
diff --git a/migration/block.c b/migration/block.c
index 823453c977..5362230714 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -568,8 +568,8 @@ static int mig_save_device_dirty(QEMUFile *f, BlkMigDevState *bmds,
bmds_set_aio_inflight(bmds, sector, nr_sectors, 1);
blk_mig_unlock();
} else {
- ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE, blk->buf,
- nr_sectors * BDRV_SECTOR_SIZE);
+ ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE,
+ blk->buf, nr_sectors * BDRV_SECTOR_SIZE, 0);
if (ret < 0) {
goto error;
}
diff --git a/nbd/server.c b/nbd/server.c
index 213e00e761..849433aa3a 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -2040,7 +2040,7 @@ static int coroutine_fn nbd_co_send_sparse_read(NBDClient *client,
ret = nbd_co_send_iov(client, iov, 1, errp);
} else {
ret = blk_pread(exp->common.blk, offset + progress,
- data + progress, pnum);
+ data + progress, pnum, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "reading from file failed");
break;
@@ -2444,7 +2444,7 @@ static coroutine_fn int nbd_do_cmd_read(NBDClient *client, NBDRequest *request,
data, request->len, errp);
}
- ret = blk_pread(exp->common.blk, request->from, data, request->len);
+ ret = blk_pread(exp->common.blk, request->from, data, request->len, 0);
if (ret < 0) {
return nbd_send_generic_reply(client, request->handle, ret,
"reading from file failed", errp);
diff --git a/qemu-img.c b/qemu-img.c
index 2dc07e5ac3..a0c0e8914e 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1309,7 +1309,7 @@ static int check_empty_sectors(BlockBackend *blk, int64_t offset,
int ret = 0;
int64_t idx;
- ret = blk_pread(blk, offset, buffer, bytes);
+ ret = blk_pread(blk, offset, buffer, bytes, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64 " of %s: %s",
offset, filename, strerror(-ret));
@@ -1526,7 +1526,7 @@ static int img_compare(int argc, char **argv)
int64_t pnum;
chunk = MIN(chunk, IO_BUF_SIZE);
- ret = blk_pread(blk1, offset, buf1, chunk);
+ ret = blk_pread(blk1, offset, buf1, chunk, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64
" of %s: %s",
@@ -1534,7 +1534,7 @@ static int img_compare(int argc, char **argv)
ret = 4;
goto out;
}
- ret = blk_pread(blk2, offset, buf2, chunk);
+ ret = blk_pread(blk2, offset, buf2, chunk, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64
" of %s: %s",
@@ -3779,7 +3779,7 @@ static int img_rebase(int argc, char **argv)
n = old_backing_size - offset;
}
- ret = blk_pread(blk_old_backing, offset, buf_old, n);
+ ret = blk_pread(blk_old_backing, offset, buf_old, n, 0);
if (ret < 0) {
error_report("error while reading from old backing file");
goto out;
@@ -3793,7 +3793,7 @@ static int img_rebase(int argc, char **argv)
n = new_backing_size - offset;
}
- ret = blk_pread(blk_new_backing, offset, buf_new, n);
+ ret = blk_pread(blk_new_backing, offset, buf_new, n, 0);
if (ret < 0) {
error_report("error while reading from new backing file");
goto out;
@@ -5122,7 +5122,7 @@ static int img_dd(int argc, char **argv)
for (out_pos = 0; in_pos < size; block_count++) {
int bytes = (in_pos + in.bsz > size) ? size - in_pos : in.bsz;
- ret = blk_pread(blk1, in_pos, in.buf, bytes);
+ ret = blk_pread(blk1, in_pos, in.buf, bytes, 0);
if (ret < 0) {
error_report("error while reading from input image file: %s",
strerror(-ret));
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 443f22c732..582e1a7090 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -547,7 +547,7 @@ static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
return -ERANGE;
}
- ret = blk_pread(blk, offset, (uint8_t *)buf, bytes);
+ ret = blk_pread(blk, offset, (uint8_t *)buf, bytes, 0);
if (ret < 0) {
return ret;
}
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 3c1a3f64a2..bfd12c9c15 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -116,11 +116,11 @@ static void test_sync_op_blk_pread(BlockBackend *blk)
int ret;
/* Success */
- ret = blk_pread(blk, 0, buf, sizeof(buf));
+ ret = blk_pread(blk, 0, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
- ret = blk_pread(blk, -2, buf, sizeof(buf));
+ ret = blk_pread(blk, -2, buf, sizeof(buf), 0);
g_assert_cmpint(ret, ==, -EIO);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 15/35] block: Change blk_{pread,pwrite}() param order
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (13 preceding siblings ...)
2022-07-12 18:05 ` [PULL 14/35] block: Add a 'flags' param to blk_pread() Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 16/35] block: Make 'bytes' param of blk_{pread, pwrite}() an int64_t Hanna Reitz
` (20 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Swap 'buf' and 'bytes' around for consistency with
blk_co_{pread,pwrite}(), and in preparation to implement these functions
using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pread(blk, offset, buf, bytes, flags)
+ blk_pread(blk, offset, bytes, buf, flags)
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pwrite(blk, offset, buf, bytes, flags)
+ blk_pwrite(blk, offset, bytes, buf, flags)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-4-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 4 +--
block.c | 2 +-
block/block-backend.c | 4 +--
block/commit.c | 4 +--
block/crypto.c | 2 +-
block/export/fuse.c | 4 +--
block/parallels.c | 2 +-
block/qcow.c | 8 +++---
block/qcow2.c | 4 +--
block/qed.c | 8 +++---
block/vdi.c | 4 +--
block/vhdx.c | 20 ++++++-------
block/vmdk.c | 10 +++----
block/vpc.c | 12 ++++----
hw/arm/allwinner-h3.c | 2 +-
hw/arm/aspeed.c | 2 +-
hw/block/block.c | 2 +-
hw/block/fdc.c | 20 ++++++-------
hw/block/hd-geometry.c | 2 +-
hw/block/m25p80.c | 2 +-
hw/block/nand.c | 47 ++++++++++++++++---------------
hw/block/onenand.c | 32 ++++++++++-----------
hw/block/pflash_cfi01.c | 4 +--
hw/block/pflash_cfi02.c | 4 +--
hw/ide/atapi.c | 4 +--
hw/misc/mac_via.c | 4 +--
hw/misc/sifive_u_otp.c | 14 ++++-----
hw/nvram/eeprom_at24c.c | 4 +--
hw/nvram/spapr_nvram.c | 6 ++--
hw/nvram/xlnx-bbram.c | 4 +--
hw/nvram/xlnx-efuse.c | 4 +--
hw/ppc/pnv_pnor.c | 6 ++--
hw/sd/sd.c | 4 +--
migration/block.c | 6 ++--
nbd/server.c | 8 +++---
qemu-img.c | 18 ++++++------
qemu-io-cmds.c | 4 +--
tests/unit/test-block-iothread.c | 8 +++---
38 files changed, 150 insertions(+), 149 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 5c5c108e0d..e2e7ab9e6c 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -101,9 +101,9 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
* the "I/O or GS" API.
*/
-int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes,
+int blk_pread(BlockBackend *blk, int64_t offset, int bytes, void *buf,
BdrvRequestFlags flags);
-int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int bytes,
+int blk_pwrite(BlockBackend *blk, int64_t offset, int bytes, const void *buf,
BdrvRequestFlags flags);
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
diff --git a/block.c b/block.c
index ed701b4889..bc85f46eed 100644
--- a/block.c
+++ b/block.c
@@ -1037,7 +1037,7 @@ static int find_image_format(BlockBackend *file, const char *filename,
return ret;
}
- ret = blk_pread(file, 0, buf, sizeof(buf), 0);
+ ret = blk_pread(file, 0, sizeof(buf), buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read image for determining its "
"format");
diff --git a/block/block-backend.c b/block/block-backend.c
index bdde90d235..5fb3890bab 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1563,7 +1563,7 @@ BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE, cb, opaque);
}
-int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes,
+int blk_pread(BlockBackend *blk, int64_t offset, int bytes, void *buf,
BdrvRequestFlags flags)
{
int ret;
@@ -1577,7 +1577,7 @@ int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int bytes,
return ret;
}
-int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int bytes,
+int blk_pwrite(BlockBackend *blk, int64_t offset, int bytes, const void *buf,
BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
diff --git a/block/commit.c b/block/commit.c
index e5b3ad08da..38571510cb 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -527,12 +527,12 @@ int bdrv_commit(BlockDriverState *bs)
goto ro_cleanup;
}
if (ret) {
- ret = blk_pread(src, offset, buf, n, 0);
+ ret = blk_pread(src, offset, n, buf, 0);
if (ret < 0) {
goto ro_cleanup;
}
- ret = blk_pwrite(backing, offset, buf, n, 0);
+ ret = blk_pwrite(backing, offset, n, buf, 0);
if (ret < 0) {
goto ro_cleanup;
}
diff --git a/block/crypto.c b/block/crypto.c
index 11c3ddbc73..7a57774b76 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -109,7 +109,7 @@ static int block_crypto_create_write_func(QCryptoBlock *block,
struct BlockCryptoCreateData *data = opaque;
ssize_t ret;
- ret = blk_pwrite(data->blk, offset, buf, buflen, 0);
+ ret = blk_pwrite(data->blk, offset, buflen, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write encryption header");
return ret;
diff --git a/block/export/fuse.c b/block/export/fuse.c
index dcf8f225f3..1b26ddfcf3 100644
--- a/block/export/fuse.c
+++ b/block/export/fuse.c
@@ -554,7 +554,7 @@ static void fuse_read(fuse_req_t req, fuse_ino_t inode,
return;
}
- ret = blk_pread(exp->common.blk, offset, buf, size, 0);
+ ret = blk_pread(exp->common.blk, offset, size, buf, 0);
if (ret >= 0) {
fuse_reply_buf(req, buf, size);
} else {
@@ -607,7 +607,7 @@ static void fuse_write(fuse_req_t req, fuse_ino_t inode, const char *buf,
}
}
- ret = blk_pwrite(exp->common.blk, offset, buf, size, 0);
+ ret = blk_pwrite(exp->common.blk, offset, size, buf, 0);
if (ret >= 0) {
fuse_reply_write(req, size);
} else {
diff --git a/block/parallels.c b/block/parallels.c
index 8b23b9580d..8b235b9505 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -599,7 +599,7 @@ static int coroutine_fn parallels_co_create(BlockdevCreateOptions* opts,
memset(tmp, 0, sizeof(tmp));
memcpy(tmp, &header, sizeof(header));
- ret = blk_pwrite(blk, 0, tmp, BDRV_SECTOR_SIZE, 0);
+ ret = blk_pwrite(blk, 0, BDRV_SECTOR_SIZE, tmp, 0);
if (ret < 0) {
goto exit;
}
diff --git a/block/qcow.c b/block/qcow.c
index 25a43353c1..311aaa8705 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -890,14 +890,14 @@ static int coroutine_fn qcow_co_create(BlockdevCreateOptions *opts,
}
/* write all the data */
- ret = blk_pwrite(qcow_blk, 0, &header, sizeof(header), 0);
+ ret = blk_pwrite(qcow_blk, 0, sizeof(header), &header, 0);
if (ret < 0) {
goto exit;
}
if (qcow_opts->has_backing_file) {
- ret = blk_pwrite(qcow_blk, sizeof(header),
- qcow_opts->backing_file, backing_filename_len, 0);
+ ret = blk_pwrite(qcow_blk, sizeof(header), backing_filename_len,
+ qcow_opts->backing_file, 0);
if (ret < 0) {
goto exit;
}
@@ -907,7 +907,7 @@ static int coroutine_fn qcow_co_create(BlockdevCreateOptions *opts,
for (i = 0; i < DIV_ROUND_UP(sizeof(uint64_t) * l1_size, BDRV_SECTOR_SIZE);
i++) {
ret = blk_pwrite(qcow_blk, header_size + BDRV_SECTOR_SIZE * i,
- tmp, BDRV_SECTOR_SIZE, 0);
+ BDRV_SECTOR_SIZE, tmp, 0);
if (ret < 0) {
g_free(tmp);
goto exit;
diff --git a/block/qcow2.c b/block/qcow2.c
index 90a2dd406b..c6c6692fb7 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3666,7 +3666,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
cpu_to_be64(QCOW2_INCOMPAT_EXTL2);
}
- ret = blk_pwrite(blk, 0, header, cluster_size, 0);
+ ret = blk_pwrite(blk, 0, cluster_size, header, 0);
g_free(header);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write qcow2 header");
@@ -3676,7 +3676,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
/* Write a refcount table with one refcount block */
refcount_table = g_malloc0(2 * cluster_size);
refcount_table[0] = cpu_to_be64(2 * cluster_size);
- ret = blk_pwrite(blk, cluster_size, refcount_table, 2 * cluster_size, 0);
+ ret = blk_pwrite(blk, cluster_size, 2 * cluster_size, refcount_table, 0);
g_free(refcount_table);
if (ret < 0) {
diff --git a/block/qed.c b/block/qed.c
index 55da91eb72..40943e679b 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -705,18 +705,18 @@ static int coroutine_fn bdrv_qed_co_create(BlockdevCreateOptions *opts,
}
qed_header_cpu_to_le(&header, &le_header);
- ret = blk_pwrite(blk, 0, &le_header, sizeof(le_header), 0);
+ ret = blk_pwrite(blk, 0, sizeof(le_header), &le_header, 0);
if (ret < 0) {
goto out;
}
- ret = blk_pwrite(blk, sizeof(le_header), qed_opts->backing_file,
- header.backing_filename_size, 0);
+ ret = blk_pwrite(blk, sizeof(le_header), header.backing_filename_size,
+ qed_opts->backing_file, 0);
if (ret < 0) {
goto out;
}
l1_table = g_malloc0(l1_size);
- ret = blk_pwrite(blk, header.l1_table_offset, l1_table, l1_size, 0);
+ ret = blk_pwrite(blk, header.l1_table_offset, l1_size, l1_table, 0);
if (ret < 0) {
goto out;
}
diff --git a/block/vdi.c b/block/vdi.c
index a0be2a23b9..e942325455 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -845,7 +845,7 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options,
vdi_header_print(&header);
}
vdi_header_to_le(&header);
- ret = blk_pwrite(blk, offset, &header, sizeof(header), 0);
+ ret = blk_pwrite(blk, offset, sizeof(header), &header, 0);
if (ret < 0) {
error_setg(errp, "Error writing header");
goto exit;
@@ -866,7 +866,7 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options,
bmap[i] = VDI_UNALLOCATED;
}
}
- ret = blk_pwrite(blk, offset, bmap, bmap_size, 0);
+ ret = blk_pwrite(blk, offset, bmap_size, bmap, 0);
if (ret < 0) {
error_setg(errp, "Error writing bmap");
goto exit;
diff --git a/block/vhdx.c b/block/vhdx.c
index 12f5261f80..e10e78ebfd 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1665,13 +1665,13 @@ static int vhdx_create_new_metadata(BlockBackend *blk,
VHDX_META_FLAGS_IS_VIRTUAL_DISK;
vhdx_metadata_entry_le_export(&md_table_entry[4]);
- ret = blk_pwrite(blk, metadata_offset, buffer, VHDX_HEADER_BLOCK_SIZE, 0);
+ ret = blk_pwrite(blk, metadata_offset, VHDX_HEADER_BLOCK_SIZE, buffer, 0);
if (ret < 0) {
goto exit;
}
- ret = blk_pwrite(blk, metadata_offset + (64 * KiB), entry_buffer,
- VHDX_METADATA_ENTRY_BUFFER_SIZE, 0);
+ ret = blk_pwrite(blk, metadata_offset + (64 * KiB),
+ VHDX_METADATA_ENTRY_BUFFER_SIZE, entry_buffer, 0);
if (ret < 0) {
goto exit;
}
@@ -1756,7 +1756,7 @@ static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
s->bat[sinfo.bat_idx] = cpu_to_le64(s->bat[sinfo.bat_idx]);
sector_num += s->sectors_per_block;
}
- ret = blk_pwrite(blk, file_offset, s->bat, length, 0);
+ ret = blk_pwrite(blk, file_offset, length, s->bat, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write the BAT");
goto exit;
@@ -1860,15 +1860,15 @@ static int vhdx_create_new_region_table(BlockBackend *blk,
}
/* Now write out the region headers to disk */
- ret = blk_pwrite(blk, VHDX_REGION_TABLE_OFFSET, buffer,
- VHDX_HEADER_BLOCK_SIZE, 0);
+ ret = blk_pwrite(blk, VHDX_REGION_TABLE_OFFSET, VHDX_HEADER_BLOCK_SIZE,
+ buffer, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write first region table");
goto exit;
}
- ret = blk_pwrite(blk, VHDX_REGION_TABLE2_OFFSET, buffer,
- VHDX_HEADER_BLOCK_SIZE, 0);
+ ret = blk_pwrite(blk, VHDX_REGION_TABLE2_OFFSET, VHDX_HEADER_BLOCK_SIZE,
+ buffer, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write second region table");
goto exit;
@@ -2012,7 +2012,7 @@ static int coroutine_fn vhdx_co_create(BlockdevCreateOptions *opts,
creator = g_utf8_to_utf16("QEMU v" QEMU_VERSION, -1, NULL,
&creator_items, NULL);
signature = cpu_to_le64(VHDX_FILE_SIGNATURE);
- ret = blk_pwrite(blk, VHDX_FILE_ID_OFFSET, &signature, sizeof(signature),
+ ret = blk_pwrite(blk, VHDX_FILE_ID_OFFSET, sizeof(signature), &signature,
0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write file signature");
@@ -2020,7 +2020,7 @@ static int coroutine_fn vhdx_co_create(BlockdevCreateOptions *opts,
}
if (creator) {
ret = blk_pwrite(blk, VHDX_FILE_ID_OFFSET + sizeof(signature),
- creator, creator_items * sizeof(gunichar2), 0);
+ creator_items * sizeof(gunichar2), creator, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to write creator field");
goto delete_and_exit;
diff --git a/block/vmdk.c b/block/vmdk.c
index 332565c80f..fe07a54866 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -2236,12 +2236,12 @@ static int vmdk_init_extent(BlockBackend *blk,
header.check_bytes[3] = 0xa;
/* write all the data */
- ret = blk_pwrite(blk, 0, &magic, sizeof(magic), 0);
+ ret = blk_pwrite(blk, 0, sizeof(magic), &magic, 0);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
}
- ret = blk_pwrite(blk, sizeof(magic), &header, sizeof(header), 0);
+ ret = blk_pwrite(blk, sizeof(magic), sizeof(header), &header, 0);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
@@ -2261,7 +2261,7 @@ static int vmdk_init_extent(BlockBackend *blk,
gd_buf[i] = cpu_to_le32(tmp);
}
ret = blk_pwrite(blk, le64_to_cpu(header.rgd_offset) * BDRV_SECTOR_SIZE,
- gd_buf, gd_buf_size, 0);
+ gd_buf_size, gd_buf, 0);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
@@ -2273,7 +2273,7 @@ static int vmdk_init_extent(BlockBackend *blk,
gd_buf[i] = cpu_to_le32(tmp);
}
ret = blk_pwrite(blk, le64_to_cpu(header.gd_offset) * BDRV_SECTOR_SIZE,
- gd_buf, gd_buf_size, 0);
+ gd_buf_size, gd_buf, 0);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
}
@@ -2584,7 +2584,7 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
desc_offset = 0x200;
}
- ret = blk_pwrite(blk, desc_offset, desc, desc_len, 0);
+ ret = blk_pwrite(blk, desc_offset, desc_len, desc, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write description");
goto exit;
diff --git a/block/vpc.c b/block/vpc.c
index 7f20820193..4f49ef207f 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -834,13 +834,13 @@ static int create_dynamic_disk(BlockBackend *blk, VHDFooter *footer,
block_size = 0x200000;
num_bat_entries = DIV_ROUND_UP(total_sectors, block_size / 512);
- ret = blk_pwrite(blk, offset, footer, sizeof(*footer), 0);
+ ret = blk_pwrite(blk, offset, sizeof(*footer), footer, 0);
if (ret < 0) {
goto fail;
}
offset = 1536 + ((num_bat_entries * 4 + 511) & ~511);
- ret = blk_pwrite(blk, offset, footer, sizeof(*footer), 0);
+ ret = blk_pwrite(blk, offset, sizeof(*footer), footer, 0);
if (ret < 0) {
goto fail;
}
@@ -850,7 +850,7 @@ static int create_dynamic_disk(BlockBackend *blk, VHDFooter *footer,
memset(bat_sector, 0xFF, 512);
for (i = 0; i < DIV_ROUND_UP(num_bat_entries * 4, 512); i++) {
- ret = blk_pwrite(blk, offset, bat_sector, 512, 0);
+ ret = blk_pwrite(blk, offset, 512, bat_sector, 0);
if (ret < 0) {
goto fail;
}
@@ -878,7 +878,7 @@ static int create_dynamic_disk(BlockBackend *blk, VHDFooter *footer,
/* Write the header */
offset = 512;
- ret = blk_pwrite(blk, offset, &dyndisk_header, sizeof(dyndisk_header), 0);
+ ret = blk_pwrite(blk, offset, sizeof(dyndisk_header), &dyndisk_header, 0);
if (ret < 0) {
goto fail;
}
@@ -901,8 +901,8 @@ static int create_fixed_disk(BlockBackend *blk, VHDFooter *footer,
return ret;
}
- ret = blk_pwrite(blk, total_size - sizeof(*footer),
- footer, sizeof(*footer), 0);
+ ret = blk_pwrite(blk, total_size - sizeof(*footer), sizeof(*footer),
+ footer, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Unable to write VHD header");
return ret;
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index 788083b6fa..308ed15552 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -174,7 +174,7 @@ void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk)
const int64_t rom_size = 32 * KiB;
g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
- if (blk_pread(blk, 8 * KiB, buffer, rom_size, 0) < 0) {
+ if (blk_pread(blk, 8 * KiB, rom_size, buffer, 0) < 0) {
error_setg(&error_fatal, "%s: failed to read BlockBackend data",
__func__);
return;
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 3a2f1013e3..3340187132 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -253,7 +253,7 @@ static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
}
storage = g_malloc0(rom_size);
- if (blk_pread(blk, 0, storage, rom_size, 0) < 0) {
+ if (blk_pread(blk, 0, rom_size, storage, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/block/block.c b/hw/block/block.c
index effb89910c..04279166ee 100644
--- a/hw/block/block.c
+++ b/hw/block/block.c
@@ -53,7 +53,7 @@ bool blk_check_size_and_read_all(BlockBackend *blk, void *buf, hwaddr size,
* block device and read only on demand.
*/
assert(size <= BDRV_REQUEST_MAX_BYTES);
- ret = blk_pread(blk, 0, buf, size, 0);
+ ret = blk_pread(blk, 0, size, buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "can't read block backend");
return false;
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index 52f278ed82..64ae4a6899 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -1628,8 +1628,8 @@ int fdctrl_transfer_handler(void *opaque, int nchan, int dma_pos, int dma_len)
if (fdctrl->data_dir != FD_DIR_WRITE ||
len < FD_SECTOR_LEN || rel_pos != 0) {
/* READ & SCAN commands and realign to a sector for WRITE */
- if (blk_pread(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(cur_drv->blk, fd_offset(cur_drv), BDRV_SECTOR_SIZE,
+ fdctrl->fifo, 0) < 0) {
FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
fd_sector(cur_drv));
/* Sure, image size is too small... */
@@ -1656,8 +1656,8 @@ int fdctrl_transfer_handler(void *opaque, int nchan, int dma_pos, int dma_len)
k->read_memory(fdctrl->dma, nchan, fdctrl->fifo + rel_pos,
fdctrl->data_pos, len);
- if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv),
- fdctrl->fifo, BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv), BDRV_SECTOR_SIZE,
+ fdctrl->fifo, 0) < 0) {
FLOPPY_DPRINTF("error writing sector %d\n",
fd_sector(cur_drv));
fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00);
@@ -1740,8 +1740,8 @@ static uint32_t fdctrl_read_data(FDCtrl *fdctrl)
fd_sector(cur_drv));
return 0;
}
- if (blk_pread(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
- BDRV_SECTOR_SIZE, 0)
+ if (blk_pread(cur_drv->blk, fd_offset(cur_drv), BDRV_SECTOR_SIZE,
+ fdctrl->fifo, 0)
< 0) {
FLOPPY_DPRINTF("error getting sector %d\n",
fd_sector(cur_drv));
@@ -1820,8 +1820,8 @@ static void fdctrl_format_sector(FDCtrl *fdctrl)
}
memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
if (cur_drv->blk == NULL ||
- blk_pwrite(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ blk_pwrite(cur_drv->blk, fd_offset(cur_drv), BDRV_SECTOR_SIZE,
+ fdctrl->fifo, 0) < 0) {
FLOPPY_DPRINTF("error formatting sector %d\n", fd_sector(cur_drv));
fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00);
} else {
@@ -2244,8 +2244,8 @@ static void fdctrl_write_data(FDCtrl *fdctrl, uint32_t value)
if (pos == FD_SECTOR_LEN - 1 ||
fdctrl->data_pos == fdctrl->data_len) {
cur_drv = get_cur_drv(fdctrl);
- if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv), BDRV_SECTOR_SIZE,
+ fdctrl->fifo, 0) < 0) {
FLOPPY_DPRINTF("error writing sector %d\n",
fd_sector(cur_drv));
break;
diff --git a/hw/block/hd-geometry.c b/hw/block/hd-geometry.c
index 24933eae82..112094358e 100644
--- a/hw/block/hd-geometry.c
+++ b/hw/block/hd-geometry.c
@@ -63,7 +63,7 @@ static int guess_disk_lchs(BlockBackend *blk,
blk_get_geometry(blk, &nb_sectors);
- if (blk_pread(blk, 0, buf, BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(blk, 0, BDRV_SECTOR_SIZE, buf, 0) < 0) {
return -1;
}
/* test msdos magic */
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 7e476b80a8..46dd9ee9bb 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -1532,7 +1532,7 @@ static void m25p80_realize(SSIPeripheral *ss, Error **errp)
trace_m25p80_binding(s);
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size, 0) < 0) {
+ if (blk_pread(s->blk, 0, s->size, s->storage, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/block/nand.c b/hw/block/nand.c
index ea3d33adf4..1aee1cb2b1 100644
--- a/hw/block/nand.c
+++ b/hw/block/nand.c
@@ -666,8 +666,8 @@ static void glue(nand_blk_write_, NAND_PAGE_SIZE)(NANDFlashState *s)
sector = SECTOR(s->addr);
off = (s->addr & PAGE_MASK) + s->offset;
soff = SECTOR_OFFSET(s->addr);
- if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- PAGE_SECTORS << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS,
+ PAGE_SECTORS << BDRV_SECTOR_BITS, iobuf, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
return;
}
@@ -679,24 +679,24 @@ static void glue(nand_blk_write_, NAND_PAGE_SIZE)(NANDFlashState *s)
MIN(OOB_SIZE, off + s->iolen - NAND_PAGE_SIZE));
}
- if (blk_pwrite(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- PAGE_SECTORS << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pwrite(s->blk, sector << BDRV_SECTOR_BITS,
+ PAGE_SECTORS << BDRV_SECTOR_BITS, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n", __func__, sector);
}
} else {
off = PAGE_START(s->addr) + (s->addr & PAGE_MASK) + s->offset;
sector = off >> 9;
soff = off & 0x1ff;
- if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pread(s->blk, sector << BDRV_SECTOR_BITS,
+ (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, iobuf, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
return;
}
mem_and(iobuf + soff, s->io, s->iolen);
- if (blk_pwrite(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
- (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pwrite(s->blk, sector << BDRV_SECTOR_BITS,
+ (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n", __func__, sector);
}
}
@@ -723,20 +723,20 @@ static void glue(nand_blk_erase_, NAND_PAGE_SIZE)(NANDFlashState *s)
i = SECTOR(addr);
page = SECTOR(addr + (1 << (ADDR_SHIFT + s->erase_shift)));
for (; i < page; i ++)
- if (blk_pwrite(s->blk, i << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk, i << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n", __func__, i);
}
} else {
addr = PAGE_START(addr);
page = addr >> 9;
- if (blk_pread(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(s->blk, page << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
}
memset(iobuf + (addr & 0x1ff), 0xff, (~addr & 0x1ff) + 1);
- if (blk_pwrite(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk, page << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n", __func__, page);
}
@@ -744,20 +744,20 @@ static void glue(nand_blk_erase_, NAND_PAGE_SIZE)(NANDFlashState *s)
i = (addr & ~0x1ff) + 0x200;
for (addr += ((NAND_PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200;
i < addr; i += 0x200) {
- if (blk_pwrite(s->blk, i, iobuf, BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk, i, BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n",
__func__, i >> 9);
}
}
page = i >> 9;
- if (blk_pread(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(s->blk, page << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
}
memset(iobuf, 0xff, ((addr - 1) & 0x1ff) + 1);
- if (blk_pwrite(s->blk, page << BDRV_SECTOR_BITS, iobuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk, page << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, iobuf, 0) < 0) {
printf("%s: write error in sector %" PRIu64 "\n", __func__, page);
}
}
@@ -772,8 +772,8 @@ static void glue(nand_blk_load_, NAND_PAGE_SIZE)(NANDFlashState *s,
if (s->blk) {
if (s->mem_oob) {
- if (blk_pread(s->blk, SECTOR(addr) << BDRV_SECTOR_BITS, s->io,
- PAGE_SECTORS << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pread(s->blk, SECTOR(addr) << BDRV_SECTOR_BITS,
+ PAGE_SECTORS << BDRV_SECTOR_BITS, s->io, 0) < 0) {
printf("%s: read error in sector %" PRIu64 "\n",
__func__, SECTOR(addr));
}
@@ -782,8 +782,9 @@ static void glue(nand_blk_load_, NAND_PAGE_SIZE)(NANDFlashState *s,
OOB_SIZE);
s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset;
} else {
- if (blk_pread(s->blk, PAGE_START(addr), s->io,
- (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, 0) < 0) {
+ if (blk_pread(s->blk, PAGE_START(addr),
+ (PAGE_SECTORS + 2) << BDRV_SECTOR_BITS, s->io, 0)
+ < 0) {
printf("%s: read error in sector %" PRIu64 "\n",
__func__, PAGE_START(addr) >> 9);
}
diff --git a/hw/block/onenand.c b/hw/block/onenand.c
index 1225ec8076..1fde975024 100644
--- a/hw/block/onenand.c
+++ b/hw/block/onenand.c
@@ -229,8 +229,8 @@ static void onenand_reset(OneNANDState *s, int cold)
/* Lock the whole flash */
memset(s->blockwp, ONEN_LOCK_LOCKED, s->blocks);
- if (s->blk_cur && blk_pread(s->blk_cur, 0, s->boot[0],
- 8 << BDRV_SECTOR_BITS, 0) < 0) {
+ if (s->blk_cur && blk_pread(s->blk_cur, 0, 8 << BDRV_SECTOR_BITS,
+ s->boot[0], 0) < 0) {
hw_error("%s: Loading the BootRAM failed.\n", __func__);
}
}
@@ -249,8 +249,8 @@ static inline int onenand_load_main(OneNANDState *s, int sec, int secn,
assert(UINT32_MAX >> BDRV_SECTOR_BITS > sec);
assert(UINT32_MAX >> BDRV_SECTOR_BITS > secn);
if (s->blk_cur) {
- return blk_pread(s->blk_cur, sec << BDRV_SECTOR_BITS, dest,
- secn << BDRV_SECTOR_BITS, 0) < 0;
+ return blk_pread(s->blk_cur, sec << BDRV_SECTOR_BITS,
+ secn << BDRV_SECTOR_BITS, dest, 0) < 0;
} else if (sec + secn > s->secs_cur) {
return 1;
}
@@ -274,7 +274,7 @@ static inline int onenand_prog_main(OneNANDState *s, int sec, int secn,
uint8_t *dp = 0;
if (s->blk_cur) {
dp = g_malloc(size);
- if (!dp || blk_pread(s->blk_cur, offset, dp, size, 0) < 0) {
+ if (!dp || blk_pread(s->blk_cur, offset, size, dp, 0) < 0) {
result = 1;
}
} else {
@@ -290,7 +290,7 @@ static inline int onenand_prog_main(OneNANDState *s, int sec, int secn,
dp[i] &= sp[i];
}
if (s->blk_cur) {
- result = blk_pwrite(s->blk_cur, offset, dp, size, 0) < 0;
+ result = blk_pwrite(s->blk_cur, offset, size, dp, 0) < 0;
}
}
if (dp && s->blk_cur) {
@@ -308,7 +308,7 @@ static inline int onenand_load_spare(OneNANDState *s, int sec, int secn,
if (s->blk_cur) {
uint32_t offset = (s->secs_cur + (sec >> 5)) << BDRV_SECTOR_BITS;
- if (blk_pread(s->blk_cur, offset, buf, BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(s->blk_cur, offset, BDRV_SECTOR_SIZE, buf, 0) < 0) {
return 1;
}
memcpy(dest, buf + ((sec & 31) << 4), secn << 4);
@@ -333,7 +333,7 @@ static inline int onenand_prog_spare(OneNANDState *s, int sec, int secn,
if (s->blk_cur) {
dp = g_malloc(512);
if (!dp
- || blk_pread(s->blk_cur, offset, dp, BDRV_SECTOR_SIZE, 0) < 0) {
+ || blk_pread(s->blk_cur, offset, BDRV_SECTOR_SIZE, dp, 0) < 0) {
result = 1;
} else {
dpp = dp + ((sec & 31) << 4);
@@ -351,8 +351,8 @@ static inline int onenand_prog_spare(OneNANDState *s, int sec, int secn,
dpp[i] &= sp[i];
}
if (s->blk_cur) {
- result = blk_pwrite(s->blk_cur, offset, dp,
- BDRV_SECTOR_SIZE, 0) < 0;
+ result = blk_pwrite(s->blk_cur, offset, BDRV_SECTOR_SIZE, dp,
+ 0) < 0;
}
}
g_free(dp);
@@ -370,17 +370,17 @@ static inline int onenand_erase(OneNANDState *s, int sec, int num)
for (; num > 0; num--, sec++) {
if (s->blk_cur) {
int erasesec = s->secs_cur + (sec >> 5);
- if (blk_pwrite(s->blk_cur, sec << BDRV_SECTOR_BITS, blankbuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk_cur, sec << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, blankbuf, 0) < 0) {
goto fail;
}
- if (blk_pread(s->blk_cur, erasesec << BDRV_SECTOR_BITS, tmpbuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pread(s->blk_cur, erasesec << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, tmpbuf, 0) < 0) {
goto fail;
}
memcpy(tmpbuf + ((sec & 31) << 4), blankbuf, 1 << 4);
- if (blk_pwrite(s->blk_cur, erasesec << BDRV_SECTOR_BITS, tmpbuf,
- BDRV_SECTOR_SIZE, 0) < 0) {
+ if (blk_pwrite(s->blk_cur, erasesec << BDRV_SECTOR_BITS,
+ BDRV_SECTOR_SIZE, tmpbuf, 0) < 0) {
goto fail;
}
} else {
diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 74c7190302..0cbc2fb4cb 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -392,8 +392,8 @@ static void pflash_update(PFlashCFI01 *pfl, int offset,
/* widen to sector boundaries */
offset = QEMU_ALIGN_DOWN(offset, BDRV_SECTOR_SIZE);
offset_end = QEMU_ALIGN_UP(offset_end, BDRV_SECTOR_SIZE);
- ret = blk_pwrite(pfl->blk, offset, pfl->storage + offset,
- offset_end - offset, 0);
+ ret = blk_pwrite(pfl->blk, offset, offset_end - offset,
+ pfl->storage + offset, 0);
if (ret < 0) {
/* TODO set error bit in status */
error_report("Could not update PFLASH: %s", strerror(-ret));
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index 02c514fb6e..2a99b286b0 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -400,8 +400,8 @@ static void pflash_update(PFlashCFI02 *pfl, int offset, int size)
/* widen to sector boundaries */
offset = QEMU_ALIGN_DOWN(offset, BDRV_SECTOR_SIZE);
offset_end = QEMU_ALIGN_UP(offset_end, BDRV_SECTOR_SIZE);
- ret = blk_pwrite(pfl->blk, offset, pfl->storage + offset,
- offset_end - offset, 0);
+ ret = blk_pwrite(pfl->blk, offset, offset_end - offset,
+ pfl->storage + offset, 0);
if (ret < 0) {
/* TODO set error bit in status */
error_report("Could not update PFLASH: %s", strerror(-ret));
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index cd4b5c6806..0a9aa6f009 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -98,11 +98,11 @@ cd_read_sector_sync(IDEState *s)
switch (s->cd_sector_size) {
case 2048:
ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS,
- s->io_buffer, ATAPI_SECTOR_SIZE, 0);
+ ATAPI_SECTOR_SIZE, s->io_buffer, 0);
break;
case 2352:
ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS,
- s->io_buffer + 16, ATAPI_SECTOR_SIZE, 0);
+ ATAPI_SECTOR_SIZE, s->io_buffer + 16, 0);
if (ret >= 0) {
cd_data_to_raw(s->io_buffer, s->lba);
}
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c
index 252b171e44..fba85a53d7 100644
--- a/hw/misc/mac_via.c
+++ b/hw/misc/mac_via.c
@@ -351,7 +351,7 @@ static void via1_one_second(void *opaque)
static void pram_update(MOS6522Q800VIA1State *v1s)
{
if (v1s->blk) {
- if (blk_pwrite(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM), 0) < 0) {
+ if (blk_pwrite(v1s->blk, 0, sizeof(v1s->PRAM), v1s->PRAM, 0) < 0) {
qemu_log("pram_update: cannot write to file\n");
}
}
@@ -1029,7 +1029,7 @@ static void mos6522_q800_via1_realize(DeviceState *dev, Error **errp)
return;
}
- ret = blk_pread(v1s->blk, 0, v1s->PRAM, sizeof(v1s->PRAM), 0);
+ ret = blk_pread(v1s->blk, 0, sizeof(v1s->PRAM), v1s->PRAM, 0);
if (ret < 0) {
error_setg(errp, "can't read PRAM contents");
return;
diff --git a/hw/misc/sifive_u_otp.c b/hw/misc/sifive_u_otp.c
index c730bb1ae0..6d7fdb040a 100644
--- a/hw/misc/sifive_u_otp.c
+++ b/hw/misc/sifive_u_otp.c
@@ -64,8 +64,8 @@ static uint64_t sifive_u_otp_read(void *opaque, hwaddr addr, unsigned int size)
if (s->blk) {
int32_t buf;
- if (blk_pread(s->blk, s->pa * SIFIVE_U_OTP_FUSE_WORD, &buf,
- SIFIVE_U_OTP_FUSE_WORD, 0) < 0) {
+ if (blk_pread(s->blk, s->pa * SIFIVE_U_OTP_FUSE_WORD,
+ SIFIVE_U_OTP_FUSE_WORD, &buf, 0) < 0) {
error_report("read error index<%d>", s->pa);
return 0xff;
}
@@ -167,8 +167,8 @@ static void sifive_u_otp_write(void *opaque, hwaddr addr,
/* write to backend */
if (s->blk) {
if (blk_pwrite(s->blk, s->pa * SIFIVE_U_OTP_FUSE_WORD,
- &s->fuse[s->pa], SIFIVE_U_OTP_FUSE_WORD,
- 0) < 0) {
+ SIFIVE_U_OTP_FUSE_WORD, &s->fuse[s->pa], 0)
+ < 0) {
error_report("write error index<%d>", s->pa);
}
}
@@ -240,7 +240,7 @@ static void sifive_u_otp_realize(DeviceState *dev, Error **errp)
return;
}
- if (blk_pread(s->blk, 0, s->fuse, filesize, 0) < 0) {
+ if (blk_pread(s->blk, 0, filesize, s->fuse, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
@@ -261,14 +261,14 @@ static void sifive_u_otp_realize(DeviceState *dev, Error **errp)
serial_data = s->serial;
if (blk_pwrite(s->blk, index * SIFIVE_U_OTP_FUSE_WORD,
- &serial_data, SIFIVE_U_OTP_FUSE_WORD, 0) < 0) {
+ SIFIVE_U_OTP_FUSE_WORD, &serial_data, 0) < 0) {
error_setg(errp, "failed to write index<%d>", index);
return;
}
serial_data = ~(s->serial);
if (blk_pwrite(s->blk, (index + 1) * SIFIVE_U_OTP_FUSE_WORD,
- &serial_data, SIFIVE_U_OTP_FUSE_WORD, 0) < 0) {
+ SIFIVE_U_OTP_FUSE_WORD, &serial_data, 0) < 0) {
error_setg(errp, "failed to write index<%d>", index + 1);
return;
}
diff --git a/hw/nvram/eeprom_at24c.c b/hw/nvram/eeprom_at24c.c
index df3eef1389..2d4d8b952f 100644
--- a/hw/nvram/eeprom_at24c.c
+++ b/hw/nvram/eeprom_at24c.c
@@ -64,7 +64,7 @@ int at24c_eeprom_event(I2CSlave *s, enum i2c_event event)
case I2C_START_RECV:
DPRINTK("clear\n");
if (ee->blk && ee->changed) {
- int ret = blk_pwrite(ee->blk, 0, ee->mem, ee->rsize, 0);
+ int ret = blk_pwrite(ee->blk, 0, ee->rsize, ee->mem, 0);
if (ret < 0) {
ERR(TYPE_AT24C_EE
" : failed to write backing file\n");
@@ -165,7 +165,7 @@ void at24c_eeprom_reset(DeviceState *state)
memset(ee->mem, 0, ee->rsize);
if (ee->blk) {
- int ret = blk_pread(ee->blk, 0, ee->mem, ee->rsize, 0);
+ int ret = blk_pread(ee->blk, 0, ee->rsize, ee->mem, 0);
if (ret < 0) {
ERR(TYPE_AT24C_EE
diff --git a/hw/nvram/spapr_nvram.c b/hw/nvram/spapr_nvram.c
index d035067e9b..2d72f30442 100644
--- a/hw/nvram/spapr_nvram.c
+++ b/hw/nvram/spapr_nvram.c
@@ -130,7 +130,7 @@ static void rtas_nvram_store(PowerPCCPU *cpu, SpaprMachineState *spapr,
ret = 0;
if (nvram->blk) {
- ret = blk_pwrite(nvram->blk, offset, membuf, len, 0);
+ ret = blk_pwrite(nvram->blk, offset, len, membuf, 0);
}
assert(nvram->buf);
@@ -179,7 +179,7 @@ static void spapr_nvram_realize(SpaprVioDevice *dev, Error **errp)
}
if (nvram->blk) {
- ret = blk_pread(nvram->blk, 0, nvram->buf, nvram->size, 0);
+ ret = blk_pread(nvram->blk, 0, nvram->size, nvram->buf, 0);
if (ret < 0) {
error_setg(errp, "can't read spapr-nvram contents");
@@ -224,7 +224,7 @@ static void postload_update_cb(void *opaque, bool running, RunState state)
qemu_del_vm_change_state_handler(nvram->vmstate);
nvram->vmstate = NULL;
- blk_pwrite(nvram->blk, 0, nvram->buf, nvram->size, 0);
+ blk_pwrite(nvram->blk, 0, nvram->size, nvram->buf, 0);
}
static int spapr_nvram_post_load(void *opaque, int version_id)
diff --git a/hw/nvram/xlnx-bbram.c b/hw/nvram/xlnx-bbram.c
index cb245b864c..c6b484cc85 100644
--- a/hw/nvram/xlnx-bbram.c
+++ b/hw/nvram/xlnx-bbram.c
@@ -124,7 +124,7 @@ static void bbram_bdrv_read(XlnxBBRam *s, Error **errp)
blk_name(s->blk));
}
- if (blk_pread(s->blk, 0, ram, nr, 0) < 0) {
+ if (blk_pread(s->blk, 0, nr, ram, 0) < 0) {
error_setg(errp,
"%s: Failed to read %u bytes from BBRAM backstore.",
blk_name(s->blk), nr);
@@ -159,7 +159,7 @@ static void bbram_bdrv_sync(XlnxBBRam *s, uint64_t hwaddr)
}
offset = hwaddr - A_BBRAM_0;
- rc = blk_pwrite(s->blk, offset, &le32, 4, 0);
+ rc = blk_pwrite(s->blk, offset, 4, &le32, 0);
if (rc < 0) {
bbram_bdrv_error(s, rc, g_strdup_printf("write to offset %u", offset));
}
diff --git a/hw/nvram/xlnx-efuse.c b/hw/nvram/xlnx-efuse.c
index edaac9cf7c..fdfffaab99 100644
--- a/hw/nvram/xlnx-efuse.c
+++ b/hw/nvram/xlnx-efuse.c
@@ -77,7 +77,7 @@ static int efuse_bdrv_read(XlnxEFuse *s, Error **errp)
blk_name(s->blk));
}
- if (blk_pread(s->blk, 0, ram, nr, 0) < 0) {
+ if (blk_pread(s->blk, 0, nr, ram, 0) < 0) {
error_setg(errp, "%s: Failed to read %u bytes from eFUSE backstore.",
blk_name(s->blk), nr);
return -1;
@@ -105,7 +105,7 @@ static void efuse_bdrv_sync(XlnxEFuse *s, unsigned int bit)
le32 = cpu_to_le32(xlnx_efuse_get_row(s, bit));
row_offset = (bit / 32) * 4;
- if (blk_pwrite(s->blk, row_offset, &le32, 4, 0) < 0) {
+ if (blk_pwrite(s->blk, row_offset, 4, &le32, 0) < 0) {
error_report("%s: Failed to write offset %u of eFUSE backstore.",
blk_name(s->blk), row_offset);
}
diff --git a/hw/ppc/pnv_pnor.c b/hw/ppc/pnv_pnor.c
index f341f5a9c9..6280408299 100644
--- a/hw/ppc/pnv_pnor.c
+++ b/hw/ppc/pnv_pnor.c
@@ -44,8 +44,8 @@ static void pnv_pnor_update(PnvPnor *s, int offset, int size)
offset = QEMU_ALIGN_DOWN(offset, BDRV_SECTOR_SIZE);
offset_end = QEMU_ALIGN_UP(offset_end, BDRV_SECTOR_SIZE);
- ret = blk_pwrite(s->blk, offset, s->storage + offset,
- offset_end - offset, 0);
+ ret = blk_pwrite(s->blk, offset, offset_end - offset, s->storage + offset,
+ 0);
if (ret < 0) {
error_report("Could not update PNOR offset=0x%" PRIx32" : %s", offset,
strerror(-ret));
@@ -99,7 +99,7 @@ static void pnv_pnor_realize(DeviceState *dev, Error **errp)
s->storage = blk_blockalign(s->blk, s->size);
- if (blk_pread(s->blk, 0, s->storage, s->size, 0) < 0) {
+ if (blk_pread(s->blk, 0, s->size, s->storage, 0) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 701170bf37..da5bdd134a 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -752,7 +752,7 @@ void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert)
static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len)
{
trace_sdcard_read_block(addr, len);
- if (!sd->blk || blk_pread(sd->blk, addr, sd->data, len, 0) < 0) {
+ if (!sd->blk || blk_pread(sd->blk, addr, len, sd->data, 0) < 0) {
fprintf(stderr, "sd_blk_read: read error on host side\n");
}
}
@@ -760,7 +760,7 @@ static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len)
static void sd_blk_write(SDState *sd, uint64_t addr, uint32_t len)
{
trace_sdcard_write_block(addr, len);
- if (!sd->blk || blk_pwrite(sd->blk, addr, sd->data, len, 0) < 0) {
+ if (!sd->blk || blk_pwrite(sd->blk, addr, len, sd->data, 0) < 0) {
fprintf(stderr, "sd_blk_write: write error on host side\n");
}
}
diff --git a/migration/block.c b/migration/block.c
index 5362230714..9e5aae5898 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -569,7 +569,7 @@ static int mig_save_device_dirty(QEMUFile *f, BlkMigDevState *bmds,
blk_mig_unlock();
} else {
ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE,
- blk->buf, nr_sectors * BDRV_SECTOR_SIZE, 0);
+ nr_sectors * BDRV_SECTOR_SIZE, blk->buf, 0);
if (ret < 0) {
goto error;
}
@@ -976,8 +976,8 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
cluster_size,
BDRV_REQ_MAY_UNMAP);
} else {
- ret = blk_pwrite(blk, cur_addr, cur_buf,
- cluster_size, 0);
+ ret = blk_pwrite(blk, cur_addr, cluster_size, cur_buf,
+ 0);
}
if (ret < 0) {
break;
diff --git a/nbd/server.c b/nbd/server.c
index 849433aa3a..ada16089f3 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -2039,8 +2039,8 @@ static int coroutine_fn nbd_co_send_sparse_read(NBDClient *client,
stl_be_p(&chunk.length, pnum);
ret = nbd_co_send_iov(client, iov, 1, errp);
} else {
- ret = blk_pread(exp->common.blk, offset + progress,
- data + progress, pnum, 0);
+ ret = blk_pread(exp->common.blk, offset + progress, pnum,
+ data + progress, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "reading from file failed");
break;
@@ -2444,7 +2444,7 @@ static coroutine_fn int nbd_do_cmd_read(NBDClient *client, NBDRequest *request,
data, request->len, errp);
}
- ret = blk_pread(exp->common.blk, request->from, data, request->len, 0);
+ ret = blk_pread(exp->common.blk, request->from, request->len, data, 0);
if (ret < 0) {
return nbd_send_generic_reply(client, request->handle, ret,
"reading from file failed", errp);
@@ -2511,7 +2511,7 @@ static coroutine_fn int nbd_handle_request(NBDClient *client,
if (request->flags & NBD_CMD_FLAG_FUA) {
flags |= BDRV_REQ_FUA;
}
- ret = blk_pwrite(exp->common.blk, request->from, data, request->len,
+ ret = blk_pwrite(exp->common.blk, request->from, request->len, data,
flags);
return nbd_send_generic_reply(client, request->handle, ret,
"writing to file failed", errp);
diff --git a/qemu-img.c b/qemu-img.c
index a0c0e8914e..df607a2a2e 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1309,7 +1309,7 @@ static int check_empty_sectors(BlockBackend *blk, int64_t offset,
int ret = 0;
int64_t idx;
- ret = blk_pread(blk, offset, buffer, bytes, 0);
+ ret = blk_pread(blk, offset, bytes, buffer, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64 " of %s: %s",
offset, filename, strerror(-ret));
@@ -1526,7 +1526,7 @@ static int img_compare(int argc, char **argv)
int64_t pnum;
chunk = MIN(chunk, IO_BUF_SIZE);
- ret = blk_pread(blk1, offset, buf1, chunk, 0);
+ ret = blk_pread(blk1, offset, chunk, buf1, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64
" of %s: %s",
@@ -1534,7 +1534,7 @@ static int img_compare(int argc, char **argv)
ret = 4;
goto out;
}
- ret = blk_pread(blk2, offset, buf2, chunk, 0);
+ ret = blk_pread(blk2, offset, chunk, buf2, 0);
if (ret < 0) {
error_report("Error while reading offset %" PRId64
" of %s: %s",
@@ -3779,7 +3779,7 @@ static int img_rebase(int argc, char **argv)
n = old_backing_size - offset;
}
- ret = blk_pread(blk_old_backing, offset, buf_old, n, 0);
+ ret = blk_pread(blk_old_backing, offset, n, buf_old, 0);
if (ret < 0) {
error_report("error while reading from old backing file");
goto out;
@@ -3793,7 +3793,7 @@ static int img_rebase(int argc, char **argv)
n = new_backing_size - offset;
}
- ret = blk_pread(blk_new_backing, offset, buf_new, n, 0);
+ ret = blk_pread(blk_new_backing, offset, n, buf_new, 0);
if (ret < 0) {
error_report("error while reading from new backing file");
goto out;
@@ -3812,8 +3812,8 @@ static int img_rebase(int argc, char **argv)
if (buf_old_is_zero) {
ret = blk_pwrite_zeroes(blk, offset + written, pnum, 0);
} else {
- ret = blk_pwrite(blk, offset + written,
- buf_old + written, pnum, 0);
+ ret = blk_pwrite(blk, offset + written, pnum,
+ buf_old + written, 0);
}
if (ret < 0) {
error_report("Error while writing to COW image: %s",
@@ -5122,7 +5122,7 @@ static int img_dd(int argc, char **argv)
for (out_pos = 0; in_pos < size; block_count++) {
int bytes = (in_pos + in.bsz > size) ? size - in_pos : in.bsz;
- ret = blk_pread(blk1, in_pos, in.buf, bytes, 0);
+ ret = blk_pread(blk1, in_pos, bytes, in.buf, 0);
if (ret < 0) {
error_report("error while reading from input image file: %s",
strerror(-ret));
@@ -5130,7 +5130,7 @@ static int img_dd(int argc, char **argv)
}
in_pos += bytes;
- ret = blk_pwrite(blk2, out_pos, in.buf, bytes, 0);
+ ret = blk_pwrite(blk2, out_pos, bytes, in.buf, 0);
if (ret < 0) {
error_report("error while writing to output image file: %s",
strerror(-ret));
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 582e1a7090..c8cbaed0cd 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -547,7 +547,7 @@ static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
return -ERANGE;
}
- ret = blk_pread(blk, offset, (uint8_t *)buf, bytes, 0);
+ ret = blk_pread(blk, offset, bytes, (uint8_t *)buf, 0);
if (ret < 0) {
return ret;
}
@@ -564,7 +564,7 @@ static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset,
return -ERANGE;
}
- ret = blk_pwrite(blk, offset, (uint8_t *)buf, bytes, flags);
+ ret = blk_pwrite(blk, offset, bytes, (uint8_t *)buf, flags);
if (ret < 0) {
return ret;
}
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index bfd12c9c15..0ced5333ff 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -116,11 +116,11 @@ static void test_sync_op_blk_pread(BlockBackend *blk)
int ret;
/* Success */
- ret = blk_pread(blk, 0, buf, sizeof(buf), 0);
+ ret = blk_pread(blk, 0, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
- ret = blk_pread(blk, -2, buf, sizeof(buf), 0);
+ ret = blk_pread(blk, -2, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, -EIO);
}
@@ -130,11 +130,11 @@ static void test_sync_op_blk_pwrite(BlockBackend *blk)
int ret;
/* Success */
- ret = blk_pwrite(blk, 0, buf, sizeof(buf), 0);
+ ret = blk_pwrite(blk, 0, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
- ret = blk_pwrite(blk, -2, buf, sizeof(buf), 0);
+ ret = blk_pwrite(blk, -2, sizeof(buf), buf, 0);
g_assert_cmpint(ret, ==, -EIO);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 16/35] block: Make 'bytes' param of blk_{pread, pwrite}() an int64_t
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (14 preceding siblings ...)
2022-07-12 18:05 ` [PULL 15/35] block: Change blk_{pread,pwrite}() param order Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:05 ` [PULL 17/35] block: Make blk_co_pwrite() take a const buffer Hanna Reitz
` (19 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
For consistency with other I/O functions, and in preparation to
implement them using generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-5-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 6 +++---
block/block-backend.c | 6 +++---
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index e2e7ab9e6c..8bf1296105 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -101,10 +101,10 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
* the "I/O or GS" API.
*/
-int blk_pread(BlockBackend *blk, int64_t offset, int bytes, void *buf,
+int blk_pread(BlockBackend *blk, int64_t offset, int64_t bytes, void *buf,
BdrvRequestFlags flags);
-int blk_pwrite(BlockBackend *blk, int64_t offset, int bytes, const void *buf,
- BdrvRequestFlags flags);
+int blk_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags);
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index 5fb3890bab..3203b25695 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1563,7 +1563,7 @@ BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE, cb, opaque);
}
-int blk_pread(BlockBackend *blk, int64_t offset, int bytes, void *buf,
+int blk_pread(BlockBackend *blk, int64_t offset, int64_t bytes, void *buf,
BdrvRequestFlags flags)
{
int ret;
@@ -1577,8 +1577,8 @@ int blk_pread(BlockBackend *blk, int64_t offset, int bytes, void *buf,
return ret;
}
-int blk_pwrite(BlockBackend *blk, int64_t offset, int bytes, const void *buf,
- BdrvRequestFlags flags)
+int blk_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_OR_GS_CODE();
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 17/35] block: Make blk_co_pwrite() take a const buffer
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (15 preceding siblings ...)
2022-07-12 18:05 ` [PULL 16/35] block: Make 'bytes' param of blk_{pread, pwrite}() an int64_t Hanna Reitz
@ 2022-07-12 18:05 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 18/35] block: Implement blk_{pread, pwrite}() using generated_co_wrapper Hanna Reitz
` (18 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:05 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
It does not mutate the buffer.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-6-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 8bf1296105..b048476a47 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -129,7 +129,7 @@ static inline int coroutine_fn blk_co_pread(BlockBackend *blk, int64_t offset,
}
static inline int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset,
- int64_t bytes, void *buf,
+ int64_t bytes, const void *buf,
BdrvRequestFlags flags)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 18/35] block: Implement blk_{pread, pwrite}() using generated_co_wrapper
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (16 preceding siblings ...)
2022-07-12 18:05 ` [PULL 17/35] block: Make blk_co_pwrite() take a const buffer Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 19/35] block: Add blk_{preadv,pwritev}() Hanna Reitz
` (17 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
We need to add include/sysemu/block-backend-io.h to the inputs of the
block-gen.c target defined in block/meson.build.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-7-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 4 ----
include/sysemu/block-backend-io.h | 10 ++++++----
block/block-backend.c | 23 -----------------------
block/meson.build | 1 +
4 files changed, 7 insertions(+), 31 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 3f41238b33..443ef2f2e6 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -112,10 +112,6 @@ bdrv_common_block_status_above(BlockDriverState *bs,
int generated_co_wrapper
nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp);
-int generated_co_wrapper
-blk_do_preadv(BlockBackend *blk, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, BdrvRequestFlags flags);
-
int generated_co_wrapper
blk_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index b048476a47..750089fc9b 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -101,10 +101,12 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
* the "I/O or GS" API.
*/
-int blk_pread(BlockBackend *blk, int64_t offset, int64_t bytes, void *buf,
- BdrvRequestFlags flags);
-int blk_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags);
+int generated_co_wrapper blk_pread(BlockBackend *blk, int64_t offset,
+ int64_t bytes, void *buf,
+ BdrvRequestFlags flags);
+int generated_co_wrapper blk_pwrite(BlockBackend *blk, int64_t offset,
+ int64_t bytes, const void *buf,
+ BdrvRequestFlags flags);
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index 3203b25695..4d6c18bc39 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1563,29 +1563,6 @@ BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE, cb, opaque);
}
-int blk_pread(BlockBackend *blk, int64_t offset, int64_t bytes, void *buf,
- BdrvRequestFlags flags)
-{
- int ret;
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_OR_GS_CODE();
-
- blk_inc_in_flight(blk);
- ret = blk_do_preadv(blk, offset, bytes, &qiov, flags);
- blk_dec_in_flight(blk);
-
- return ret;
-}
-
-int blk_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
- const void *buf, BdrvRequestFlags flags)
-{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_OR_GS_CODE();
-
- return blk_pwritev_part(blk, offset, bytes, &qiov, 0, flags);
-}
-
int64_t blk_getlength(BlockBackend *blk)
{
IO_CODE();
diff --git a/block/meson.build b/block/meson.build
index 0b2a60c99b..60bc305597 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -136,6 +136,7 @@ block_gen_c = custom_target('block-gen.c',
input: files(
'../include/block/block-io.h',
'../include/block/block-global-state.h',
+ '../include/sysemu/block-backend-io.h',
'coroutines.h'
),
command: [wrapper_py, '@OUTPUT@', '@INPUT@'])
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 19/35] block: Add blk_{preadv,pwritev}()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (17 preceding siblings ...)
2022-07-12 18:06 ` [PULL 18/35] block: Implement blk_{pread, pwrite}() using generated_co_wrapper Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 20/35] block: Add blk_[co_]preadv_part() Hanna Reitz
` (16 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Implement them using generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-8-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 6 +++++
tests/unit/test-block-iothread.c | 42 ++++++++++++++++++++++++++++++-
2 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 750089fc9b..cbf4422ea1 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -107,6 +107,9 @@ int generated_co_wrapper blk_pread(BlockBackend *blk, int64_t offset,
int generated_co_wrapper blk_pwrite(BlockBackend *blk, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
+int generated_co_wrapper blk_preadv(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
@@ -114,6 +117,9 @@ int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
BdrvRequestFlags flags);
+int generated_co_wrapper blk_pwritev(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 0ced5333ff..b9c5da3a87 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -138,6 +138,36 @@ static void test_sync_op_blk_pwrite(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
+static void test_sync_op_blk_preadv(BlockBackend *blk)
+{
+ uint8_t buf[512];
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, sizeof(buf));
+ int ret;
+
+ /* Success */
+ ret = blk_preadv(blk, 0, sizeof(buf), &qiov, 0);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_preadv(blk, -2, sizeof(buf), &qiov, 0);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
+static void test_sync_op_blk_pwritev(BlockBackend *blk)
+{
+ uint8_t buf[512] = { 0 };
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, sizeof(buf));
+ int ret;
+
+ /* Success */
+ ret = blk_pwritev(blk, 0, sizeof(buf), &qiov, 0);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_pwritev(blk, -2, sizeof(buf), &qiov, 0);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@@ -301,6 +331,14 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/pwrite",
.fn = test_sync_op_pwrite,
.blkfn = test_sync_op_blk_pwrite,
+ }, {
+ .name = "/sync-op/preadv",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_preadv,
+ }, {
+ .name = "/sync-op/pwritev",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_pwritev,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,
@@ -349,7 +387,9 @@ static void test_sync_op(const void *opaque)
blk_set_aio_context(blk, ctx, &error_abort);
aio_context_acquire(ctx);
- t->fn(c);
+ if (t->fn) {
+ t->fn(c);
+ }
if (t->blkfn) {
t->blkfn(blk);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 20/35] block: Add blk_[co_]preadv_part()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (18 preceding siblings ...)
2022-07-12 18:06 ` [PULL 19/35] block: Add blk_{preadv,pwritev}() Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 21/35] block: Export blk_pwritev_part() in block-backend-io.h Hanna Reitz
` (15 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Implement blk_preadv_part() using generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-9-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 5 -----
include/sysemu/block-backend-io.h | 7 +++++++
block/block-backend.c | 30 +++++++++++++++++++++++-------
tests/unit/test-block-iothread.c | 19 +++++++++++++++++++
4 files changed, 49 insertions(+), 12 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 443ef2f2e6..85423f8db6 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -63,11 +63,6 @@ nbd_co_do_establish_connection(BlockDriverState *bs, bool blocking,
Error **errp);
-int coroutine_fn
-blk_co_do_preadv(BlockBackend *blk, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, BdrvRequestFlags flags);
-
-
int coroutine_fn
blk_co_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index cbf4422ea1..877274a999 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -107,6 +107,13 @@ int generated_co_wrapper blk_pread(BlockBackend *blk, int64_t offset,
int generated_co_wrapper blk_pwrite(BlockBackend *blk, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
+int generated_co_wrapper blk_preadv_part(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ size_t qiov_offset,
+ BdrvRequestFlags flags);
+int coroutine_fn blk_co_preadv_part(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ size_t qiov_offset, BdrvRequestFlags flags);
int generated_co_wrapper blk_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index 4d6c18bc39..49db3f63fb 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1280,9 +1280,10 @@ static void coroutine_fn blk_wait_while_drained(BlockBackend *blk)
}
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
-int coroutine_fn
-blk_co_do_preadv(BlockBackend *blk, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, BdrvRequestFlags flags)
+static int coroutine_fn
+blk_co_do_preadv_part(BlockBackend *blk, int64_t offset, int64_t bytes,
+ QEMUIOVector *qiov, size_t qiov_offset,
+ BdrvRequestFlags flags)
{
int ret;
BlockDriverState *bs;
@@ -1307,7 +1308,8 @@ blk_co_do_preadv(BlockBackend *blk, int64_t offset, int64_t bytes,
bytes, false);
}
- ret = bdrv_co_preadv(blk->root, offset, bytes, qiov, flags);
+ ret = bdrv_co_preadv_part(blk->root, offset, bytes, qiov, qiov_offset,
+ flags);
bdrv_dec_in_flight(bs);
return ret;
}
@@ -1320,7 +1322,21 @@ int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
IO_OR_GS_CODE();
blk_inc_in_flight(blk);
- ret = blk_co_do_preadv(blk, offset, bytes, qiov, flags);
+ ret = blk_co_do_preadv_part(blk, offset, bytes, qiov, 0, flags);
+ blk_dec_in_flight(blk);
+
+ return ret;
+}
+
+int coroutine_fn blk_co_preadv_part(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ size_t qiov_offset, BdrvRequestFlags flags)
+{
+ int ret;
+ IO_OR_GS_CODE();
+
+ blk_inc_in_flight(blk);
+ ret = blk_co_do_preadv_part(blk, offset, bytes, qiov, qiov_offset, flags);
blk_dec_in_flight(blk);
return ret;
@@ -1537,8 +1553,8 @@ static void blk_aio_read_entry(void *opaque)
QEMUIOVector *qiov = rwco->iobuf;
assert(qiov->size == acb->bytes);
- rwco->ret = blk_co_do_preadv(rwco->blk, rwco->offset, acb->bytes,
- qiov, rwco->flags);
+ rwco->ret = blk_co_do_preadv_part(rwco->blk, rwco->offset, acb->bytes, qiov,
+ 0, rwco->flags);
blk_aio_complete(acb);
}
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index b9c5da3a87..2fa1248445 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -168,6 +168,21 @@ static void test_sync_op_blk_pwritev(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
+static void test_sync_op_blk_preadv_part(BlockBackend *blk)
+{
+ uint8_t buf[512];
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, sizeof(buf));
+ int ret;
+
+ /* Success */
+ ret = blk_preadv_part(blk, 0, sizeof(buf), &qiov, 0, 0);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_preadv_part(blk, -2, sizeof(buf), &qiov, 0, 0);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@@ -339,6 +354,10 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/pwritev",
.fn = NULL,
.blkfn = test_sync_op_blk_pwritev,
+ }, {
+ .name = "/sync-op/preadv_part",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_preadv_part,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 21/35] block: Export blk_pwritev_part() in block-backend-io.h
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (19 preceding siblings ...)
2022-07-12 18:06 ` [PULL 20/35] block: Add blk_[co_]preadv_part() Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 22/35] block: Change blk_pwrite_compressed() param order Hanna Reitz
` (14 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Also convert it into a generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-10-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 5 -----
include/sysemu/block-backend-io.h | 4 ++++
block/block-backend.c | 14 --------------
tests/unit/test-block-iothread.c | 19 +++++++++++++++++++
4 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 85423f8db6..94fd283f62 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -107,11 +107,6 @@ bdrv_common_block_status_above(BlockDriverState *bs,
int generated_co_wrapper
nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp);
-int generated_co_wrapper
-blk_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, size_t qiov_offset,
- BdrvRequestFlags flags);
-
int generated_co_wrapper
blk_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 877274a999..93a15071c4 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -120,6 +120,10 @@ int generated_co_wrapper blk_preadv(BlockBackend *blk, int64_t offset,
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
+int generated_co_wrapper blk_pwritev_part(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ size_t qiov_offset,
+ BdrvRequestFlags flags);
int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
diff --git a/block/block-backend.c b/block/block-backend.c
index 49db3f63fb..c75942b773 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1403,20 +1403,6 @@ int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
return blk_co_pwritev_part(blk, offset, bytes, qiov, 0, flags);
}
-static int coroutine_fn blk_pwritev_part(BlockBackend *blk, int64_t offset,
- int64_t bytes,
- QEMUIOVector *qiov, size_t qiov_offset,
- BdrvRequestFlags flags)
-{
- int ret;
-
- blk_inc_in_flight(blk);
- ret = blk_do_pwritev_part(blk, offset, bytes, qiov, qiov_offset, flags);
- blk_dec_in_flight(blk);
-
- return ret;
-}
-
typedef struct BlkRwCo {
BlockBackend *blk;
int64_t offset;
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 2fa1248445..274e9e3653 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -183,6 +183,21 @@ static void test_sync_op_blk_preadv_part(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
+static void test_sync_op_blk_pwritev_part(BlockBackend *blk)
+{
+ uint8_t buf[512] = { 0 };
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, sizeof(buf));
+ int ret;
+
+ /* Success */
+ ret = blk_pwritev_part(blk, 0, sizeof(buf), &qiov, 0, 0);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_pwritev_part(blk, -2, sizeof(buf), &qiov, 0, 0);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@@ -358,6 +373,10 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/preadv_part",
.fn = NULL,
.blkfn = test_sync_op_blk_preadv_part,
+ }, {
+ .name = "/sync-op/pwritev_part",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_pwritev_part,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 22/35] block: Change blk_pwrite_compressed() param order
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (20 preceding siblings ...)
2022-07-12 18:06 ` [PULL 21/35] block: Export blk_pwritev_part() in block-backend-io.h Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 23/35] block: Add blk_co_pwrite_compressed() Hanna Reitz
` (13 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Swap 'buf' and 'bytes' around for consistency with other I/O functions.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-11-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 4 ++--
block/block-backend.c | 4 ++--
qemu-img.c | 2 +-
qemu-io-cmds.c | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 93a15071c4..695b793a72 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -167,8 +167,8 @@ int blk_flush(BlockBackend *blk);
int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
- int64_t bytes);
+int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf);
int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index c75942b773..60fb7eb3f2 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2314,8 +2314,8 @@ int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE);
}
-int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
- int64_t bytes)
+int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_OR_GS_CODE();
diff --git a/qemu-img.c b/qemu-img.c
index df607a2a2e..7d4b33b3da 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2114,7 +2114,7 @@ static int convert_do_copy(ImgConvertState *s)
if (s->compressed && !s->ret) {
/* signal EOF to align */
- ret = blk_pwrite_compressed(s->target, 0, NULL, 0);
+ ret = blk_pwrite_compressed(s->target, 0, 0, NULL);
if (ret < 0) {
return ret;
}
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index c8cbaed0cd..952dc940f1 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -631,7 +631,7 @@ static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset,
return -ERANGE;
}
- ret = blk_pwrite_compressed(blk, offset, buf, bytes);
+ ret = blk_pwrite_compressed(blk, offset, bytes, buf);
if (ret < 0) {
return ret;
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 23/35] block: Add blk_co_pwrite_compressed()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (21 preceding siblings ...)
2022-07-12 18:06 ` [PULL 22/35] block: Change blk_pwrite_compressed() param order Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 24/35] block: Implement blk_pwrite_zeroes() using generated_co_wrapper Hanna Reitz
` (12 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Also convert blk_pwrite_compressed() into a generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-12-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 7 +++++--
block/block-backend.c | 8 ++++----
tests/unit/test-block-iothread.c | 18 ++++++++++++++++++
3 files changed, 27 insertions(+), 6 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 695b793a72..8500a63102 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -167,8 +167,11 @@ int blk_flush(BlockBackend *blk);
int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, int64_t bytes,
- const void *buf);
+int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
+ int64_t offset, int64_t bytes,
+ const void *buf);
+int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
+ int64_t bytes, const void *buf);
int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index 60fb7eb3f2..f07a76aa5a 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2314,13 +2314,13 @@ int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
flags | BDRV_REQ_ZERO_WRITE);
}
-int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, int64_t bytes,
- const void *buf)
+int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
+ int64_t bytes, const void *buf)
{
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
IO_OR_GS_CODE();
- return blk_pwritev_part(blk, offset, bytes, &qiov, 0,
- BDRV_REQ_WRITE_COMPRESSED);
+ return blk_co_pwritev_part(blk, offset, bytes, &qiov, 0,
+ BDRV_REQ_WRITE_COMPRESSED);
}
int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 274e9e3653..3a46886784 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -198,6 +198,20 @@ static void test_sync_op_blk_pwritev_part(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
+static void test_sync_op_blk_pwrite_compressed(BlockBackend *blk)
+{
+ uint8_t buf[512] = { 0 };
+ int ret;
+
+ /* Late error: Not supported */
+ ret = blk_pwrite_compressed(blk, 0, sizeof(buf), buf);
+ g_assert_cmpint(ret, ==, -ENOTSUP);
+
+ /* Early error: Negative offset */
+ ret = blk_pwrite_compressed(blk, -2, sizeof(buf), buf);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@@ -377,6 +391,10 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/pwritev_part",
.fn = NULL,
.blkfn = test_sync_op_blk_pwritev_part,
+ }, {
+ .name = "/sync-op/pwrite_compressed",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_pwrite_compressed,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 24/35] block: Implement blk_pwrite_zeroes() using generated_co_wrapper
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (22 preceding siblings ...)
2022-07-12 18:06 ` [PULL 23/35] block: Add blk_co_pwrite_compressed() Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 25/35] block: Implement blk_pdiscard() " Hanna Reitz
` (11 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-13-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 5 +++--
block/block-backend.c | 8 --------
tests/unit/test-block-iothread.c | 17 +++++++++++++++++
3 files changed, 20 insertions(+), 10 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 8500a63102..346ca47fed 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -173,8 +173,9 @@ int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
int64_t bytes, const void *buf);
int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
-int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
- int64_t bytes, BdrvRequestFlags flags);
+int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
+ int64_t bytes,
+ BdrvRequestFlags flags);
int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
diff --git a/block/block-backend.c b/block/block-backend.c
index f07a76aa5a..85661d1823 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1411,14 +1411,6 @@ typedef struct BlkRwCo {
BdrvRequestFlags flags;
} BlkRwCo;
-int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
- int64_t bytes, BdrvRequestFlags flags)
-{
- IO_OR_GS_CODE();
- return blk_pwritev_part(blk, offset, bytes, NULL, 0,
- flags | BDRV_REQ_ZERO_WRITE);
-}
-
int blk_make_zero(BlockBackend *blk, BdrvRequestFlags flags)
{
GLOBAL_STATE_CODE();
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index 3a46886784..bb9230a4b4 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -212,6 +212,19 @@ static void test_sync_op_blk_pwrite_compressed(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
+static void test_sync_op_blk_pwrite_zeroes(BlockBackend *blk)
+{
+ int ret;
+
+ /* Success */
+ ret = blk_pwrite_zeroes(blk, 0, 512, 0);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_pwrite_zeroes(blk, -2, 512, 0);
+ g_assert_cmpint(ret, ==, -EIO);
+}
+
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@@ -395,6 +408,10 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/pwrite_compressed",
.fn = NULL,
.blkfn = test_sync_op_blk_pwrite_compressed,
+ }, {
+ .name = "/sync-op/pwrite_zeroes",
+ .fn = NULL,
+ .blkfn = test_sync_op_blk_pwrite_zeroes,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 25/35] block: Implement blk_pdiscard() using generated_co_wrapper
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (23 preceding siblings ...)
2022-07-12 18:06 ` [PULL 24/35] block: Implement blk_pwrite_zeroes() using generated_co_wrapper Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 26/35] block: Implement blk_flush() " Hanna Reitz
` (10 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-14-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 3 ---
include/sysemu/block-backend-io.h | 3 ++-
block/block-backend.c | 12 ------------
3 files changed, 2 insertions(+), 16 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 94fd283f62..2693ecabfb 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -110,9 +110,6 @@ nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp);
int generated_co_wrapper
blk_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-int generated_co_wrapper
-blk_do_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
-
int generated_co_wrapper blk_do_flush(BlockBackend *blk);
#endif /* BLOCK_COROUTINES_H */
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 346ca47fed..5a12a1f74f 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -159,6 +159,8 @@ static inline int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset,
return blk_co_pwritev(blk, offset, bytes, &qiov, flags);
}
+int generated_co_wrapper blk_pdiscard(BlockBackend *blk, int64_t offset,
+ int64_t bytes);
int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset,
int64_t bytes);
@@ -172,7 +174,6 @@ int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
const void *buf);
int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
int64_t bytes, const void *buf);
-int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes,
BdrvRequestFlags flags);
diff --git a/block/block-backend.c b/block/block-backend.c
index 85661d1823..71585c0c0a 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1711,18 +1711,6 @@ int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset,
return ret;
}
-int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes)
-{
- int ret;
- IO_OR_GS_CODE();
-
- blk_inc_in_flight(blk);
- ret = blk_do_pdiscard(blk, offset, bytes);
- blk_dec_in_flight(blk);
-
- return ret;
-}
-
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
int coroutine_fn blk_co_do_flush(BlockBackend *blk)
{
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 26/35] block: Implement blk_flush() using generated_co_wrapper
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (24 preceding siblings ...)
2022-07-12 18:06 ` [PULL 25/35] block: Implement blk_pdiscard() " Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 27/35] block: Add blk_co_ioctl() Hanna Reitz
` (9 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-15-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 2 --
include/sysemu/block-backend-io.h | 2 +-
block/block-backend.c | 11 -----------
3 files changed, 1 insertion(+), 14 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 2693ecabfb..7e94b9fa83 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -110,6 +110,4 @@ nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp);
int generated_co_wrapper
blk_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-int generated_co_wrapper blk_do_flush(BlockBackend *blk);
-
#endif /* BLOCK_COROUTINES_H */
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 5a12a1f74f..6954c3bb8c 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -164,8 +164,8 @@ int generated_co_wrapper blk_pdiscard(BlockBackend *blk, int64_t offset,
int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset,
int64_t bytes);
+int generated_co_wrapper blk_flush(BlockBackend *blk);
int coroutine_fn blk_co_flush(BlockBackend *blk);
-int blk_flush(BlockBackend *blk);
int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
diff --git a/block/block-backend.c b/block/block-backend.c
index 71585c0c0a..783a77cf6d 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1752,17 +1752,6 @@ int coroutine_fn blk_co_flush(BlockBackend *blk)
return ret;
}
-int blk_flush(BlockBackend *blk)
-{
- int ret;
-
- blk_inc_in_flight(blk);
- ret = blk_do_flush(blk);
- blk_dec_in_flight(blk);
-
- return ret;
-}
-
void blk_drain(BlockBackend *blk)
{
BlockDriverState *bs = blk_bs(blk);
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 27/35] block: Add blk_co_ioctl()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (25 preceding siblings ...)
2022-07-12 18:06 ` [PULL 26/35] block: Implement blk_flush() " Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 28/35] block: Add blk_co_truncate() Hanna Reitz
` (8 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Also convert blk_ioctl() into a generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-16-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 6 ------
include/sysemu/block-backend-io.h | 5 ++++-
block/block-backend.c | 7 ++++---
3 files changed, 8 insertions(+), 10 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index 7e94b9fa83..d66551a277 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -68,9 +68,6 @@ blk_co_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
BdrvRequestFlags flags);
-int coroutine_fn
-blk_co_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-
int coroutine_fn
blk_co_do_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
@@ -107,7 +104,4 @@ bdrv_common_block_status_above(BlockDriverState *bs,
int generated_co_wrapper
nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp);
-int generated_co_wrapper
-blk_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
-
#endif /* BLOCK_COROUTINES_H */
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 6954c3bb8c..21f3a1b4f2 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -167,7 +167,10 @@ int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset,
int generated_co_wrapper blk_flush(BlockBackend *blk);
int coroutine_fn blk_co_flush(BlockBackend *blk);
-int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
+int generated_co_wrapper blk_ioctl(BlockBackend *blk, unsigned long int req,
+ void *buf);
+int coroutine_fn blk_co_ioctl(BlockBackend *blk, unsigned long int req,
+ void *buf);
int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
int64_t offset, int64_t bytes,
diff --git a/block/block-backend.c b/block/block-backend.c
index 783a77cf6d..a31b9f1205 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1620,7 +1620,7 @@ void blk_aio_cancel_async(BlockAIOCB *acb)
}
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
-int coroutine_fn
+static int coroutine_fn
blk_co_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf)
{
IO_CODE();
@@ -1634,13 +1634,14 @@ blk_co_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf)
return bdrv_co_ioctl(blk_bs(blk), req, buf);
}
-int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf)
+int coroutine_fn blk_co_ioctl(BlockBackend *blk, unsigned long int req,
+ void *buf)
{
int ret;
IO_OR_GS_CODE();
blk_inc_in_flight(blk);
- ret = blk_do_ioctl(blk, req, buf);
+ ret = blk_co_do_ioctl(blk, req, buf);
blk_dec_in_flight(blk);
return ret;
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 28/35] block: Add blk_co_truncate()
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (26 preceding siblings ...)
2022-07-12 18:06 ` [PULL 27/35] block: Add blk_co_ioctl() Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 29/35] block: Reorganize some declarations in block-backend-io.h Hanna Reitz
` (7 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Also convert blk_truncate() into a generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-17-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 8 ++++++--
block/block-backend.c | 7 ++++---
tests/unit/test-block-iothread.c | 14 ++++++++++++++
3 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index 21f3a1b4f2..a79b7d9d9c 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -182,7 +182,11 @@ int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
BdrvRequestFlags flags);
int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
-int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, BdrvRequestFlags flags, Error **errp);
+int generated_co_wrapper blk_truncate(BlockBackend *blk, int64_t offset,
+ bool exact, PreallocMode prealloc,
+ BdrvRequestFlags flags, Error **errp);
+int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact,
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp);
#endif /* BLOCK_BACKEND_IO_H */
diff --git a/block/block-backend.c b/block/block-backend.c
index a31b9f1205..d0450ffd22 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2293,8 +2293,9 @@ int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
BDRV_REQ_WRITE_COMPRESSED);
}
-int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, BdrvRequestFlags flags, Error **errp)
+int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact,
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
IO_OR_GS_CODE();
if (!blk_is_available(blk)) {
@@ -2302,7 +2303,7 @@ int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
return -ENOMEDIUM;
}
- return bdrv_truncate(blk->root, offset, exact, prealloc, flags, errp);
+ return bdrv_co_truncate(blk->root, offset, exact, prealloc, flags, errp);
}
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index bb9230a4b4..8b55eccc89 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -298,6 +298,19 @@ static void test_sync_op_truncate(BdrvChild *c)
c->bs->open_flags |= BDRV_O_RDWR;
}
+static void test_sync_op_blk_truncate(BlockBackend *blk)
+{
+ int ret;
+
+ /* Normal success path */
+ ret = blk_truncate(blk, 65536, false, PREALLOC_MODE_OFF, 0, NULL);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_truncate(blk, -2, false, PREALLOC_MODE_OFF, 0, NULL);
+ g_assert_cmpint(ret, ==, -EINVAL);
+}
+
static void test_sync_op_block_status(BdrvChild *c)
{
int ret;
@@ -425,6 +438,7 @@ const SyncOpTest sync_op_tests[] = {
}, {
.name = "/sync-op/truncate",
.fn = test_sync_op_truncate,
+ .blkfn = test_sync_op_blk_truncate,
}, {
.name = "/sync-op/block_status",
.fn = test_sync_op_block_status,
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 29/35] block: Reorganize some declarations in block-backend-io.h
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (27 preceding siblings ...)
2022-07-12 18:06 ` [PULL 28/35] block: Add blk_co_truncate() Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 30/35] block: Remove remaining unused symbols in coroutines.h Hanna Reitz
` (6 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Keep generated_co_wrapper and coroutine_fn pairs together. This should
make it clear that each I/O function has these two versions.
Also move blk_co_{pread,pwrite}()'s implementations out of the header
file for consistency.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220705161527.1054072-18-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
include/sysemu/block-backend-io.h | 77 +++++++++++++------------------
block/block-backend.c | 22 +++++++++
2 files changed, 54 insertions(+), 45 deletions(-)
diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h
index a79b7d9d9c..50f5aa2e07 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -104,9 +104,16 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
int generated_co_wrapper blk_pread(BlockBackend *blk, int64_t offset,
int64_t bytes, void *buf,
BdrvRequestFlags flags);
-int generated_co_wrapper blk_pwrite(BlockBackend *blk, int64_t offset,
- int64_t bytes, const void *buf,
+int coroutine_fn blk_co_pread(BlockBackend *blk, int64_t offset, int64_t bytes,
+ void *buf, BdrvRequestFlags flags);
+
+int generated_co_wrapper blk_preadv(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
+int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
+
int generated_co_wrapper blk_preadv_part(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
size_t qiov_offset,
@@ -114,12 +121,20 @@ int generated_co_wrapper blk_preadv_part(BlockBackend *blk, int64_t offset,
int coroutine_fn blk_co_preadv_part(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
size_t qiov_offset, BdrvRequestFlags flags);
-int generated_co_wrapper blk_preadv(BlockBackend *blk, int64_t offset,
- int64_t bytes, QEMUIOVector *qiov,
+
+int generated_co_wrapper blk_pwrite(BlockBackend *blk, int64_t offset,
+ int64_t bytes, const void *buf,
BdrvRequestFlags flags);
-int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
- int64_t bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags);
+int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags);
+
+int generated_co_wrapper blk_pwritev(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
+int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
+ int64_t bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
+
int generated_co_wrapper blk_pwritev_part(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
size_t qiov_offset,
@@ -128,36 +143,18 @@ int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
BdrvRequestFlags flags);
-int generated_co_wrapper blk_pwritev(BlockBackend *blk, int64_t offset,
- int64_t bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags);
-int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
- int64_t bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags);
-
-static inline int coroutine_fn blk_co_pread(BlockBackend *blk, int64_t offset,
- int64_t bytes, void *buf,
- BdrvRequestFlags flags)
-{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_OR_GS_CODE();
-
- assert(bytes <= SIZE_MAX);
-
- return blk_co_preadv(blk, offset, bytes, &qiov, flags);
-}
-
-static inline int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset,
- int64_t bytes, const void *buf,
- BdrvRequestFlags flags)
-{
- QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
- IO_OR_GS_CODE();
- assert(bytes <= SIZE_MAX);
+int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
+ int64_t offset, int64_t bytes,
+ const void *buf);
+int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
+ int64_t bytes, const void *buf);
- return blk_co_pwritev(blk, offset, bytes, &qiov, flags);
-}
+int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
+ int64_t bytes,
+ BdrvRequestFlags flags);
+int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
+ int64_t bytes, BdrvRequestFlags flags);
int generated_co_wrapper blk_pdiscard(BlockBackend *blk, int64_t offset,
int64_t bytes);
@@ -172,16 +169,6 @@ int generated_co_wrapper blk_ioctl(BlockBackend *blk, unsigned long int req,
int coroutine_fn blk_co_ioctl(BlockBackend *blk, unsigned long int req,
void *buf);
-int generated_co_wrapper blk_pwrite_compressed(BlockBackend *blk,
- int64_t offset, int64_t bytes,
- const void *buf);
-int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset,
- int64_t bytes, const void *buf);
-int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset,
- int64_t bytes,
- BdrvRequestFlags flags);
-int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
- int64_t bytes, BdrvRequestFlags flags);
int generated_co_wrapper blk_truncate(BlockBackend *blk, int64_t offset,
bool exact, PreallocMode prealloc,
BdrvRequestFlags flags, Error **errp);
diff --git a/block/block-backend.c b/block/block-backend.c
index d0450ffd22..f3d6525923 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1314,6 +1314,17 @@ blk_co_do_preadv_part(BlockBackend *blk, int64_t offset, int64_t bytes,
return ret;
}
+int coroutine_fn blk_co_pread(BlockBackend *blk, int64_t offset, int64_t bytes,
+ void *buf, BdrvRequestFlags flags)
+{
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
+ IO_OR_GS_CODE();
+
+ assert(bytes <= SIZE_MAX);
+
+ return blk_co_preadv(blk, offset, bytes, &qiov, flags);
+}
+
int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags)
@@ -1395,6 +1406,17 @@ int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
return ret;
}
+int coroutine_fn blk_co_pwrite(BlockBackend *blk, int64_t offset, int64_t bytes,
+ const void *buf, BdrvRequestFlags flags)
+{
+ QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes);
+ IO_OR_GS_CODE();
+
+ assert(bytes <= SIZE_MAX);
+
+ return blk_co_pwritev(blk, offset, bytes, &qiov, flags);
+}
+
int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
int64_t bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags)
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 30/35] block: Remove remaining unused symbols in coroutines.h
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (28 preceding siblings ...)
2022-07-12 18:06 ` [PULL 29/35] block: Reorganize some declarations in block-backend-io.h Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 31/35] qsd: Do not use error_report() before monitor_init Hanna Reitz
` (5 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
From: Alberto Faria <afaria@redhat.com>
Some can be made static, others are unused generated_co_wrappers.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-19-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
---
block/coroutines.h | 19 -------------------
block/block-backend.c | 6 +++---
2 files changed, 3 insertions(+), 22 deletions(-)
diff --git a/block/coroutines.h b/block/coroutines.h
index d66551a277..3a2bad564f 100644
--- a/block/coroutines.h
+++ b/block/coroutines.h
@@ -63,17 +63,6 @@ nbd_co_do_establish_connection(BlockDriverState *bs, bool blocking,
Error **errp);
-int coroutine_fn
-blk_co_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, size_t qiov_offset,
- BdrvRequestFlags flags);
-
-int coroutine_fn
-blk_co_do_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes);
-
-int coroutine_fn blk_co_do_flush(BlockBackend *blk);
-
-
/*
* "I/O or GS" API functions. These functions can run without
* the BQL, but only in one specific iothread/main loop.
@@ -82,14 +71,6 @@ int coroutine_fn blk_co_do_flush(BlockBackend *blk);
* the "I/O or GS" API.
*/
-int generated_co_wrapper
-bdrv_preadv(BdrvChild *child, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, BdrvRequestFlags flags);
-
-int generated_co_wrapper
-bdrv_pwritev(BdrvChild *child, int64_t offset, int64_t bytes,
- QEMUIOVector *qiov, BdrvRequestFlags flags);
-
int generated_co_wrapper
bdrv_common_block_status_above(BlockDriverState *bs,
BlockDriverState *base,
diff --git a/block/block-backend.c b/block/block-backend.c
index f3d6525923..d4a5df2ac2 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1354,7 +1354,7 @@ int coroutine_fn blk_co_preadv_part(BlockBackend *blk, int64_t offset,
}
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
-int coroutine_fn
+static int coroutine_fn
blk_co_do_pwritev_part(BlockBackend *blk, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
BdrvRequestFlags flags)
@@ -1687,7 +1687,7 @@ BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf,
}
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
-int coroutine_fn
+static int coroutine_fn
blk_co_do_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes)
{
int ret;
@@ -1735,7 +1735,7 @@ int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset,
}
/* To be called between exactly one pair of blk_inc/dec_in_flight() */
-int coroutine_fn blk_co_do_flush(BlockBackend *blk)
+static int coroutine_fn blk_co_do_flush(BlockBackend *blk)
{
blk_wait_while_drained(blk);
IO_CODE();
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 31/35] qsd: Do not use error_report() before monitor_init
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (29 preceding siblings ...)
2022-07-12 18:06 ` [PULL 30/35] block: Remove remaining unused symbols in coroutines.h Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:06 ` [PULL 32/35] iotests/297: Have mypy ignore unused ignores Hanna Reitz
` (4 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
error_report() only works once monitor_init_globals_core() has been
called, which is not the case when parsing the --daemonize option. Use
fprintf(stderr, ...) instead.
Fixes: 2525edd85fec53e23fda98974a15e3b3c8957596 ("qsd: Add --daemonize")
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220609122852.21140-1-hreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
storage-daemon/qemu-storage-daemon.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/storage-daemon/qemu-storage-daemon.c b/storage-daemon/qemu-storage-daemon.c
index b8e910f220..448c318e23 100644
--- a/storage-daemon/qemu-storage-daemon.c
+++ b/storage-daemon/qemu-storage-daemon.c
@@ -296,7 +296,11 @@ static void process_options(int argc, char *argv[], bool pre_init_pass)
}
case OPTION_DAEMONIZE:
if (os_set_daemonize(true) < 0) {
- error_report("--daemonize not supported in this build");
+ /*
+ * --daemonize is parsed before monitor_init_globals_core(), so
+ * error_report() does not work yet
+ */
+ fprintf(stderr, "--daemonize not supported in this build\n");
exit(EXIT_FAILURE);
}
break;
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 32/35] iotests/297: Have mypy ignore unused ignores
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (30 preceding siblings ...)
2022-07-12 18:06 ` [PULL 31/35] qsd: Do not use error_report() before monitor_init Hanna Reitz
@ 2022-07-12 18:06 ` Hanna Reitz
2022-07-12 18:08 ` [PULL 33/35] qsd: Unlink absolute PID file path Hanna Reitz
` (3 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:06 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
e7874a50ff3f5b20fb46f36958ad ("python: update for mypy 0.950") has added
`warn_unused_ignores = False` to python/setup.cfg, to be able to keep
compatibility with both pre- and post-0.950 mypy versions.
The iotests' mypy.ini needs the same, or 297 will fail (on both pre- and
post-0.950 mypy, as far as I can tell; just for different `ignore`
lines).
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220621092536.19837-1-hreitz@redhat.com>
Acked-by: John Snow <jsnow@redhat.com>
---
tests/qemu-iotests/mypy.ini | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/qemu-iotests/mypy.ini b/tests/qemu-iotests/mypy.ini
index 4c0339f558..d66ffc2e3c 100644
--- a/tests/qemu-iotests/mypy.ini
+++ b/tests/qemu-iotests/mypy.ini
@@ -9,4 +9,4 @@ no_implicit_optional = True
scripts_are_modules = True
warn_redundant_casts = True
warn_unused_configs = True
-warn_unused_ignores = True
+warn_unused_ignores = False
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 33/35] qsd: Unlink absolute PID file path
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (31 preceding siblings ...)
2022-07-12 18:06 ` [PULL 32/35] iotests/297: Have mypy ignore unused ignores Hanna Reitz
@ 2022-07-12 18:08 ` Hanna Reitz
2022-07-12 18:08 ` [PULL 34/35] vl: Conditionally register PID file unlink notifier Hanna Reitz
` (2 subsequent siblings)
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:08 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
After writing the PID file, we register an atexit() handler to unlink it
when the process terminates. However, if the process has changed its
working directory in the meantime (e.g. in os_setup_post() when
daemonizing), this will not work when the PID file path was relative.
Therefore, pass the absolute path (created with realpath()) to the
unlink() call in the atexit() handler.
(realpath() needs a path pointing to an existing file, so we cannot use
it before qemu_write_pidfile().)
Reproducer:
$ cd /tmp
$ qemu-storage-daemon --daemonize --pidfile qsd.pid
$ file qsd.pid
qsd.pid: ASCII text
$ kill $(cat qsd.pid)
$ file qsd.pid
qsd.pid: ASCII text
(qsd.pid should be gone after the process has terminated.)
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2092322
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220609122701.17172-2-hreitz@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
storage-daemon/qemu-storage-daemon.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/storage-daemon/qemu-storage-daemon.c b/storage-daemon/qemu-storage-daemon.c
index 448c318e23..7718f6dcda 100644
--- a/storage-daemon/qemu-storage-daemon.c
+++ b/storage-daemon/qemu-storage-daemon.c
@@ -61,6 +61,7 @@
#include "trace/control.h"
static const char *pid_file;
+static char *pid_file_realpath;
static volatile bool exit_requested = false;
void qemu_system_killed(int signal, pid_t pid)
@@ -363,7 +364,7 @@ static void process_options(int argc, char *argv[], bool pre_init_pass)
static void pid_file_cleanup(void)
{
- unlink(pid_file);
+ unlink(pid_file_realpath);
}
static void pid_file_init(void)
@@ -379,6 +380,14 @@ static void pid_file_init(void)
exit(EXIT_FAILURE);
}
+ pid_file_realpath = g_malloc(PATH_MAX);
+ if (!realpath(pid_file, pid_file_realpath)) {
+ error_report("cannot resolve PID file path: %s: %s",
+ pid_file, strerror(errno));
+ unlink(pid_file);
+ exit(EXIT_FAILURE);
+ }
+
atexit(pid_file_cleanup);
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 34/35] vl: Conditionally register PID file unlink notifier
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (32 preceding siblings ...)
2022-07-12 18:08 ` [PULL 33/35] qsd: Unlink absolute PID file path Hanna Reitz
@ 2022-07-12 18:08 ` Hanna Reitz
2022-07-12 18:08 ` [PULL 35/35] vl: Unlink absolute PID file path Hanna Reitz
2022-07-13 20:47 ` [PULL 00/35] Block patches Peter Maydell
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:08 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
Currently, the exit notifier for unlinking the PID file is registered
unconditionally. Limit it to only when we actually do create a PID
file.
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220609122701.17172-3-hreitz@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
softmmu/vl.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 3f264d4b09..36f46fcdad 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -1526,9 +1526,7 @@ static Notifier qemu_unlink_pidfile_notifier;
static void qemu_unlink_pidfile(Notifier *n, void *data)
{
- if (pid_file) {
- unlink(pid_file);
- }
+ unlink(pid_file);
}
static const QEMUOption *lookup_opt(int argc, char **argv,
@@ -2431,13 +2429,15 @@ static void qemu_maybe_daemonize(const char *pid_file)
os_daemonize();
rcu_disable_atfork();
- if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
- error_reportf_err(err, "cannot create PID file: ");
- exit(1);
- }
+ if (pid_file) {
+ if (!qemu_write_pidfile(pid_file, &err)) {
+ error_reportf_err(err, "cannot create PID file: ");
+ exit(1);
+ }
- qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
- qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
+ qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
+ qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
+ }
}
static void qemu_init_displays(void)
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* [PULL 35/35] vl: Unlink absolute PID file path
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (33 preceding siblings ...)
2022-07-12 18:08 ` [PULL 34/35] vl: Conditionally register PID file unlink notifier Hanna Reitz
@ 2022-07-12 18:08 ` Hanna Reitz
2022-07-13 20:47 ` [PULL 00/35] Block patches Peter Maydell
35 siblings, 0 replies; 37+ messages in thread
From: Hanna Reitz @ 2022-07-12 18:08 UTC (permalink / raw)
To: qemu-block; +Cc: qemu-devel, Hanna Reitz
After writing the PID file, we register an exit notifier to unlink it
when the process terminates. However, if the process has changed its
working directory in the meantime (e.g. in os_setup_post() when
daemonizing), this will not work when the PID file path was relative.
Therefore, pass the absolute path (created with realpath()) to the
unlink() call in the exit notifier.
(realpath() needs a path pointing to an existing file, so we cannot use
it before qemu_write_pidfile().)
Reproducer:
$ cd /tmp
$ qemu-system-x86_64 --daemonize --pidfile qemu.pid
$ file qemu.pid
qemu.pid: ASCII text
$ kill $(cat qemu.pid)
$ file qemu.pid
qemu.pid: ASCII text
(qemu.pid should be gone after the process has terminated.)
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220609122701.17172-4-hreitz@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
softmmu/vl.c | 30 ++++++++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 36f46fcdad..aabd82e09a 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -1522,11 +1522,18 @@ machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
}
static const char *pid_file;
-static Notifier qemu_unlink_pidfile_notifier;
+struct UnlinkPidfileNotifier {
+ Notifier notifier;
+ char *pid_file_realpath;
+};
+static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
static void qemu_unlink_pidfile(Notifier *n, void *data)
{
- unlink(pid_file);
+ struct UnlinkPidfileNotifier *upn;
+
+ upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
+ unlink(upn->pid_file_realpath);
}
static const QEMUOption *lookup_opt(int argc, char **argv,
@@ -2430,13 +2437,28 @@ static void qemu_maybe_daemonize(const char *pid_file)
rcu_disable_atfork();
if (pid_file) {
+ char *pid_file_realpath = NULL;
+
if (!qemu_write_pidfile(pid_file, &err)) {
error_reportf_err(err, "cannot create PID file: ");
exit(1);
}
- qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
- qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
+ pid_file_realpath = g_malloc0(PATH_MAX);
+ if (!realpath(pid_file, pid_file_realpath)) {
+ error_report("cannot resolve PID file path: %s: %s",
+ pid_file, strerror(errno));
+ unlink(pid_file);
+ exit(1);
+ }
+
+ qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
+ .notifier = {
+ .notify = qemu_unlink_pidfile,
+ },
+ .pid_file_realpath = pid_file_realpath,
+ };
+ qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
}
}
--
2.35.3
^ permalink raw reply related [flat|nested] 37+ messages in thread* Re: [PULL 00/35] Block patches
2022-07-12 18:05 [PULL 00/35] Block patches Hanna Reitz
` (34 preceding siblings ...)
2022-07-12 18:08 ` [PULL 35/35] vl: Unlink absolute PID file path Hanna Reitz
@ 2022-07-13 20:47 ` Peter Maydell
35 siblings, 0 replies; 37+ messages in thread
From: Peter Maydell @ 2022-07-13 20:47 UTC (permalink / raw)
To: Hanna Reitz; +Cc: qemu-block, qemu-devel
On Tue, 12 Jul 2022 at 19:10, Hanna Reitz <hreitz@redhat.com> wrote:
>
> The following changes since commit 9548cbeffffd4253e38570d29b8cff0bf77c998f:
>
> iotests/copy-before-write: specify required_fmts (2022-07-12 13:21:02 +0530)
>
> are available in the Git repository at:
>
> https://gitlab.com/hreitz/qemu.git tags/pull-block-2022-07-12
>
> for you to fetch changes up to 85c4bf8aa6c93c24876e8870ae7cf8ab2e5a96cf:
>
> vl: Unlink absolute PID file path (2022-07-12 14:31:15 +0200)
>
> ----------------------------------------------------------------
> Block patches:
> - Refactoring for non-coroutine variants of bdrv/blk_co_* functions:
> Auto-generate more of them with the block coroutine wrapper generator
> script
> - iotest fixes
> - Both for the storage daemon and the system emulator: Fix PID file
> handling when daemonizing (store the absolute path and delete that on
> exit, which is necessary because daemonizing will change the working
> directory to /)
>
> ----------------------------------------------------------------
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/7.1
for any user-visible changes.
-- PMM
^ permalink raw reply [flat|nested] 37+ messages in thread