* [PATCH v2 1/3] btrfs: scrub: get rid of sector_t
2017-10-09 15:21 [PATCH v2 0/3] Cleanup sector_t David Sterba
@ 2017-10-09 15:21 ` David Sterba
2017-10-09 15:21 ` [PATCH v2 2/3] btrfs: rename page offset parameter in submit_extent_page David Sterba
2017-10-09 15:21 ` [PATCH v2 3/3] btrfs: get rid of sector_t and use u64 offset " David Sterba
2 siblings, 0 replies; 4+ messages in thread
From: David Sterba @ 2017-10-09 15:21 UTC (permalink / raw)
To: linux-btrfs; +Cc: enadolski, bo.li.liu, David Sterba
The use of sector_t is not necessry, it's just for a warning. Switch to
u64 and rename the variable and use byte units instead of 512b, ie.
dropping the >> 9 shifts. The messages are adjusted as well.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/scrub.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index e3f6c49e5c4d..cd1b791d9706 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -231,7 +231,7 @@ struct scrub_warning {
struct btrfs_path *path;
u64 extent_item_size;
const char *errstr;
- sector_t sector;
+ u64 physical;
u64 logical;
struct btrfs_device *dev;
};
@@ -797,10 +797,10 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root,
*/
for (i = 0; i < ipath->fspath->elem_cnt; ++i)
btrfs_warn_in_rcu(fs_info,
- "%s at logical %llu on dev %s, sector %llu, root %llu, inode %llu, offset %llu, length %llu, links %u (path: %s)",
+"%s at logical %llu on dev %s, physical %llu, root %llu, inode %llu, offset %llu, length %llu, links %u (path: %s)",
swarn->errstr, swarn->logical,
rcu_str_deref(swarn->dev->name),
- (unsigned long long)swarn->sector,
+ swarn->physical,
root, inum, offset,
min(isize - offset, (u64)PAGE_SIZE), nlink,
(char *)(unsigned long)ipath->fspath->val[i]);
@@ -810,10 +810,10 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root,
err:
btrfs_warn_in_rcu(fs_info,
- "%s at logical %llu on dev %s, sector %llu, root %llu, inode %llu, offset %llu: path resolving failed with ret=%d",
+ "%s at logical %llu on dev %s, physical %llu, root %llu, inode %llu, offset %llu: path resolving failed with ret=%d",
swarn->errstr, swarn->logical,
rcu_str_deref(swarn->dev->name),
- (unsigned long long)swarn->sector,
+ swarn->physical,
root, inum, offset, ret);
free_ipath(ipath);
@@ -845,7 +845,7 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
if (!path)
return;
- swarn.sector = (sblock->pagev[0]->physical) >> 9;
+ swarn.physical = sblock->pagev[0]->physical;
swarn.logical = sblock->pagev[0]->logical;
swarn.errstr = errstr;
swarn.dev = NULL;
@@ -868,10 +868,10 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
item_size, &ref_root,
&ref_level);
btrfs_warn_in_rcu(fs_info,
- "%s at logical %llu on dev %s, sector %llu: metadata %s (level %d) in tree %llu",
+"%s at logical %llu on dev %s, physical %llu: metadata %s (level %d) in tree %llu",
errstr, swarn.logical,
rcu_str_deref(dev->name),
- (unsigned long long)swarn.sector,
+ swarn.physical,
ref_level ? "node" : "leaf",
ret < 0 ? -1 : ref_level,
ret < 0 ? -1 : ref_root);
--
2.14.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v2 2/3] btrfs: rename page offset parameter in submit_extent_page
2017-10-09 15:21 [PATCH v2 0/3] Cleanup sector_t David Sterba
2017-10-09 15:21 ` [PATCH v2 1/3] btrfs: scrub: get rid of sector_t David Sterba
@ 2017-10-09 15:21 ` David Sterba
2017-10-09 15:21 ` [PATCH v2 3/3] btrfs: get rid of sector_t and use u64 offset " David Sterba
2 siblings, 0 replies; 4+ messages in thread
From: David Sterba @ 2017-10-09 15:21 UTC (permalink / raw)
To: linux-btrfs; +Cc: enadolski, bo.li.liu, David Sterba
We're going to remove sector_t and will use 'offset', so this patch
frees the name.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/extent_io.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 12ab19a4b93e..ea9ab934794b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2762,7 +2762,7 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page,
static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
struct writeback_control *wbc,
struct page *page, sector_t sector,
- size_t size, unsigned long offset,
+ size_t size, unsigned long pg_offset,
struct block_device *bdev,
struct bio **bio_ret,
bio_end_io_t end_io_func,
@@ -2786,8 +2786,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
if (prev_bio_flags != bio_flags || !contig ||
force_bio_submit ||
- merge_bio(tree, page, offset, page_size, bio, bio_flags) ||
- bio_add_page(bio, page, page_size, offset) < page_size) {
+ merge_bio(tree, page, pg_offset, page_size, bio, bio_flags) ||
+ bio_add_page(bio, page, page_size, pg_offset) < page_size) {
ret = submit_one_bio(bio, mirror_num, prev_bio_flags);
if (ret < 0) {
*bio_ret = NULL;
@@ -2802,7 +2802,7 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
}
bio = btrfs_bio_alloc(bdev, sector << 9);
- bio_add_page(bio, page, page_size, offset);
+ bio_add_page(bio, page, page_size, pg_offset);
bio->bi_end_io = end_io_func;
bio->bi_private = tree;
bio->bi_write_hint = page->mapping->host->i_write_hint;
--
2.14.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v2 3/3] btrfs: get rid of sector_t and use u64 offset in submit_extent_page
2017-10-09 15:21 [PATCH v2 0/3] Cleanup sector_t David Sterba
2017-10-09 15:21 ` [PATCH v2 1/3] btrfs: scrub: get rid of sector_t David Sterba
2017-10-09 15:21 ` [PATCH v2 2/3] btrfs: rename page offset parameter in submit_extent_page David Sterba
@ 2017-10-09 15:21 ` David Sterba
2 siblings, 0 replies; 4+ messages in thread
From: David Sterba @ 2017-10-09 15:21 UTC (permalink / raw)
To: linux-btrfs; +Cc: enadolski, bo.li.liu, David Sterba
The use of sector_t in the callchain of submit_extent_page is not
necessary. Switch to u64 and rename the variable and use byte units
instead of 512b, ie. dropping the >> 9 shifts and avoiding the
con(tro)versions of sector_t.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/extent_io.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ea9ab934794b..8d0834ee792b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2761,7 +2761,7 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page,
*/
static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
struct writeback_control *wbc,
- struct page *page, sector_t sector,
+ struct page *page, u64 offset,
size_t size, unsigned long pg_offset,
struct block_device *bdev,
struct bio **bio_ret,
@@ -2776,6 +2776,7 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
int contig = 0;
int old_compressed = prev_bio_flags & EXTENT_BIO_COMPRESSED;
size_t page_size = min_t(size_t, size, PAGE_SIZE);
+ sector_t sector = offset >> 9;
if (bio_ret && *bio_ret) {
bio = *bio_ret;
@@ -2801,7 +2802,7 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
}
}
- bio = btrfs_bio_alloc(bdev, sector << 9);
+ bio = btrfs_bio_alloc(bdev, offset);
bio_add_page(bio, page, page_size, pg_offset);
bio->bi_end_io = end_io_func;
bio->bi_private = tree;
@@ -2892,7 +2893,6 @@ static int __do_readpage(struct extent_io_tree *tree,
u64 last_byte = i_size_read(inode);
u64 block_start;
u64 cur_end;
- sector_t sector;
struct extent_map *em;
struct block_device *bdev;
int ret = 0;
@@ -2928,6 +2928,7 @@ static int __do_readpage(struct extent_io_tree *tree,
}
while (cur <= end) {
bool force_bio_submit = false;
+ u64 offset;
if (cur >= last_byte) {
char *userpage;
@@ -2967,9 +2968,9 @@ static int __do_readpage(struct extent_io_tree *tree,
iosize = ALIGN(iosize, blocksize);
if (this_bio_flag & EXTENT_BIO_COMPRESSED) {
disk_io_size = em->block_len;
- sector = em->block_start >> 9;
+ offset = em->block_start;
} else {
- sector = (em->block_start + extent_offset) >> 9;
+ offset = em->block_start + extent_offset;
disk_io_size = iosize;
}
bdev = em->bdev;
@@ -3062,8 +3063,8 @@ static int __do_readpage(struct extent_io_tree *tree,
}
ret = submit_extent_page(REQ_OP_READ | read_flags, tree, NULL,
- page, sector, disk_io_size, pg_offset,
- bdev, bio,
+ page, offset, disk_io_size,
+ pg_offset, bdev, bio,
end_bio_extent_readpage, mirror_num,
*bio_flags,
this_bio_flag,
@@ -3324,7 +3325,6 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
u64 extent_offset;
u64 block_start;
u64 iosize;
- sector_t sector;
struct extent_map *em;
struct block_device *bdev;
size_t pg_offset = 0;
@@ -3367,6 +3367,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
while (cur <= end) {
u64 em_end;
+ u64 offset;
if (cur >= i_size) {
if (tree->ops && tree->ops->writepage_end_io_hook)
@@ -3388,7 +3389,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
BUG_ON(end < cur);
iosize = min(em_end - cur, end - cur + 1);
iosize = ALIGN(iosize, blocksize);
- sector = (em->block_start + extent_offset) >> 9;
+ offset = em->block_start + extent_offset;
bdev = em->bdev;
block_start = em->block_start;
compressed = test_bit(EXTENT_FLAG_COMPRESSED, &em->flags);
@@ -3431,7 +3432,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
}
ret = submit_extent_page(REQ_OP_WRITE | write_flags, tree, wbc,
- page, sector, iosize, pg_offset,
+ page, offset, iosize, pg_offset,
bdev, &epd->bio,
end_bio_extent_writepage,
0, 0, 0, false);
@@ -3748,7 +3749,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
clear_page_dirty_for_io(p);
set_page_writeback(p);
ret = submit_extent_page(REQ_OP_WRITE | write_flags, tree, wbc,
- p, offset >> 9, PAGE_SIZE, 0, bdev,
+ p, offset, PAGE_SIZE, 0, bdev,
&epd->bio,
end_bio_extent_buffer_writepage,
0, epd->bio_flags, bio_flags, false);
--
2.14.0
^ permalink raw reply related [flat|nested] 4+ messages in thread