Commit 78d933c7 authored Mar 31, 2020 by Jules Irenge Committed by David Sterba May 25, 2020

btrfs: add missing annotation for btrfs_tree_lock()



Sparse reports a warning at btrfs_tree_lock()

warning: context imbalance in btrfs_tree_lock() - wrong count at exit

The root cause is the missing annotation at btrfs_tree_lock()
Add the missing __acquires(&eb->lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent c142c6a4

fs/btrfs/locking.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -410,6 +410,7 @@ void btrfs_tree_read_unlock_blocking(struct extent_buffer *eb)
		* The rwlock is held for write upon exit.
		*/
		void btrfs_tree_lock(struct extent_buffer *eb)
		__acquires(&eb->lock)
		{
		u64 start_ns = 0;