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btrfs: Add missing lock annotation for release_extent_buffer()

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Sparse reports a warning at release_extent_buffer()
warning: context imbalance in release_extent_buffer() - unexpected unlock

The root cause is the missing annotation at release_extent_buffer()
Add the missing __releases(&eb->refs_lock) annotation

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jules Irenge 2020-02-23 23:16:42 +00:00 committed by David Sterba
parent 75ec1db871
commit 5ce48d0f0e
1 changed files with 1 additions and 0 deletions
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fs/btrfs/extent_io.c
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@ -5276,6 +5276,7 @@ static inline void btrfs_release_extent_buffer_rcu(struct rcu_head *head)
}
static int release_extent_buffer(struct extent_buffer *eb)
__releases(&eb->refs_lock)
{
lockdep_assert_held(&eb->refs_lock);