diff options
| author | David Sterba <dsterba@suse.com> | 2025-09-17 19:53:54 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2025-09-23 08:49:26 +0200 |
| commit | 9264d004a6c9788354b45553b9e4fe910e71b387 (patch) | |
| tree | c3df36b361ab8669e6d9063d5e632957150f886f /fs/btrfs/scrub.c | |
| parent | 4ca6f24a52c4e94bd09f70cf132d0a38db7996b0 (diff) | |
btrfs: add unlikely annotations to branches leading to EUCLEAN
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
EUCLEAN (a corruption) is one of them.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/scrub.c')
| -rw-r--r-- | fs/btrfs/scrub.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index e19e6bc5f074..641d7975b936 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -1529,7 +1529,7 @@ static int find_first_extent_item(struct btrfs_root *extent_root, ret = btrfs_search_slot(NULL, extent_root, &key, path, 0, 0); if (ret < 0) return ret; - if (ret == 0) { + if (unlikely(ret == 0)) { /* * Key with offset -1 found, there would have to exist an extent * item with such offset, but this is out of the valid range. @@ -2910,7 +2910,7 @@ static int scrub_one_super(struct scrub_ctx *sctx, struct btrfs_device *dev, physical, dev->devid); return -EIO; } - if (btrfs_super_generation(sb) != generation) { + if (unlikely(btrfs_super_generation(sb) != generation)) { btrfs_err_rl(fs_info, "scrub: super block at physical %llu devid %llu has bad generation %llu expect %llu", physical, dev->devid, |