diff options
| author | David Sterba <dsterba@suse.com> | 2025-09-17 19:53:55 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2025-09-23 08:49:26 +0200 |
| commit | cc53bd2085c8fa7b199a9a8e10e634b62a6d3fa8 (patch) | |
| tree | e109a51a63115104c3769dff9a9beac8acec879b /fs/btrfs/extent_io.c | |
| parent | 9264d004a6c9788354b45553b9e4fe910e71b387 (diff) | |
btrfs: add unlikely annotations to branches leading to EIO
The unlikely() annotation is a static prediction hint that compiler may
use to reorder code out of hot path. We use it elsewhere (namely
tree-checker.c) for error branches that almost never happen, where
EIO is one of them.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 4342d654a954..c123a3ef154a 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3880,7 +3880,7 @@ int read_extent_buffer_pages(struct extent_buffer *eb, int mirror_num, return ret; wait_on_bit_io(&eb->bflags, EXTENT_BUFFER_READING, TASK_UNINTERRUPTIBLE); - if (!test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags)) + if (unlikely(!test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags))) return -EIO; return 0; } |