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btrfs: factor out a helper to end a single sector buffer I/O

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Add a helper to end I/O on a single sector, which will come in handy
with the new read repair code.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Christoph Hellwig 2022-05-22 13:47:50 +02:00 committed by David Sterba
parent fd5a6f63cb
commit a5aa7ab6e7
1 changed files with 15 additions and 11 deletions
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26
fs/btrfs/extent_io.c
View file

@ -2727,6 +2727,20 @@ static void end_page_read(struct page *page, bool uptodate, u64 start, u32 len)
btrfs_subpage_end_reader(fs_info, page, start, len);
}
static void end_sector_io(struct page *page, u64 offset, bool uptodate)
{
struct btrfs_inode *inode = BTRFS_I(page->mapping->host);
const u32 sectorsize = inode->root->fs_info->sectorsize;
struct extent_state *cached = NULL;
end_page_read(page, uptodate, offset, sectorsize);
if (uptodate)
set_extent_uptodate(&inode->io_tree, offset,
offset + sectorsize - 1, &cached, GFP_ATOMIC);
unlock_extent_cached_atomic(&inode->io_tree, offset,
offset + sectorsize - 1, &cached);
}
static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
u32 bio_offset, const struct bio_vec *bvec,
int failed_mirror, unsigned int error_bitmap)
@ -2757,7 +2771,6 @@ static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
/* Iterate through all the sectors in the range */
for (i = 0; i < nr_bits; i++) {
const unsigned int offset = i * sectorsize;
struct extent_state *cached = NULL;
bool uptodate = false;
int ret;
@ -2788,16 +2801,7 @@ static void submit_data_read_repair(struct inode *inode, struct bio *failed_bio,
* will not be properly unlocked.
*/
next:
end_page_read(page, uptodate, start + offset, sectorsize);
if (uptodate)
set_extent_uptodate(&BTRFS_I(inode)->io_tree,
start + offset,
start + offset + sectorsize - 1,
&cached, GFP_ATOMIC);
unlock_extent_cached_atomic(&BTRFS_I(inode)->io_tree,
start + offset,
start + offset + sectorsize - 1,
&cached);
end_sector_io(page, start + offset, uptodate);
}
}