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authorDavid Sterba <dsterba@suse.com>2025-09-17 19:53:55 +0200
committerDavid Sterba <dsterba@suse.com>2025-09-23 08:49:26 +0200
commitcc53bd2085c8fa7b199a9a8e10e634b62a6d3fa8 (patch)
treee109a51a63115104c3769dff9a9beac8acec879b /fs/btrfs/defrag.c
parent9264d004a6c9788354b45553b9e4fe910e71b387 (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/defrag.c')
-rw-r--r--fs/btrfs/defrag.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/defrag.c b/fs/btrfs/defrag.c
index 84ba9906f0d8..7b277934f66f 100644
--- a/fs/btrfs/defrag.c
+++ b/fs/btrfs/defrag.c
@@ -924,7 +924,7 @@ again:
folio_put(folio);
goto again;
}
- if (!folio_test_uptodate(folio)) {
+ if (unlikely(!folio_test_uptodate(folio))) {
folio_unlock(folio);
folio_put(folio);
return ERR_PTR(-EIO);