Commit 64a71f0b authored by Filipe Manana's avatar Filipe Manana Committed by David Sterba
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btrfs: assert delayed refs lock is held at find_first_ref_head() 



The delayed refs lock must be held when calling find_first_ref_head(), so
assert that it's being held.

Reviewed-by: default avatarBoris Burkov <boris@bur.io>
Reviewed-by: default avatarQu Wenruo <wqu@suse.com>
Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 7226ed7d

fs/btrfs/delayed-ref.c

+2 −0
Original line number Diff line number Diff line
@@ -384,6 +384,8 @@ static struct btrfs_delayed_ref_head *find_first_ref_head( 
	struct rb_node *n;

	struct btrfs_delayed_ref_head *entry;



	lockdep_assert_held(&dr->lock);



	n = rb_first_cached(&dr->href_root);

	if (!n)

		return NULL;