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btrfs: add unlikely to unexpected error case in extent_writepages()

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We don't expect to hit errors and log the error message, so add the
unlikely annotation to make it clear and to hint the compiler that it may
reorganize code to be more efficient.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <asj@kernel.org>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2025-10-12 10:43:02 +01:00 committed by David Sterba
parent 74ca34f79e
commit 28fe58ce6a
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/extent_io.c
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@ -1874,7 +1874,7 @@ static int extent_writepage(struct folio *folio, struct btrfs_bio_ctrl *bio_ctrl
folio_size(folio), bio_ctrl, i_size);
if (ret == 1)
return 0;
if (ret < 0)
if (unlikely(ret < 0))
btrfs_err_rl(fs_info,
"failed to submit blocks, root=%lld inode=%llu folio=%llu submit_bitmap=%*pbl: %d",
btrfs_root_id(inode->root), btrfs_ino(inode),