[Qemu-devel] [PATCH 2/5] vdi: Replace bdrv_{read, write}() with bdrv_{pread, pwrite}()

[Alberto Garcia <berto@igalia.com>]

There's only a couple of bdrv_read() and bdrv_write() calls left in
the vdi code, and they can be trivially replaced with the byte-based
bdrv_pread() and bdrv_pwrite().

Signed-off-by: Alberto Garcia <berto@igalia.com>
---
 block/vdi.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/block/vdi.c b/block/vdi.c
index e1c42ad732..8d849b2754 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -384,7 +384,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
 
     logout("\n");
 
-    ret = bdrv_read(bs->file, 0, (uint8_t *)&header, 1);
+    ret = bdrv_pread(bs->file, 0, (uint8_t *)&header, sizeof(header));
     if (ret < 0) {
         goto fail;
     }
@@ -484,8 +484,8 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
         goto fail;
     }
 
-    ret = bdrv_read(bs->file, s->bmap_sector, (uint8_t *)s->bmap,
-                    bmap_size);
+    ret = bdrv_pread(bs->file, header.offset_bmap, (uint8_t *)s->bmap,
+                     bmap_size * SECTOR_SIZE);
     if (ret < 0) {
         goto fail_free_bmap;
     }
@@ -704,7 +704,7 @@ nonallocating_write:
         assert(VDI_IS_ALLOCATED(bmap_first));
         *header = s->header;
         vdi_header_to_le(header);
-        ret = bdrv_write(bs->file, 0, block, 1);
+        ret = bdrv_pwrite(bs->file, 0, block, sizeof(*block));
         g_free(block);
         block = NULL;
 
@@ -722,7 +722,8 @@ 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_write(bs->file, offset, base, n_sectors);
+        ret = bdrv_pwrite(bs->file, offset * SECTOR_SIZE, base,
+                          n_sectors * SECTOR_SIZE);
     }
 
     return ret;
-- 
2.11.0