We have this open coded in btrfs_destroy_delayed_refs, use the helper
instead.
Reviewed-by: Nikolay Borisov <nbori...@suse.com>
Signed-off-by: Josef Bacik <jo...@toxicpanda.com>
---
fs/btrfs/disk-io.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index beaa58e742b5..f062fb0487cd 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4197,16 +4197,9 @@ static int btrfs_destroy_delayed_refs(struct
btrfs_transaction *trans,
head = rb_entry(node, struct btrfs_delayed_ref_head,
href_node);
- if (!mutex_trylock(&head->mutex)) {
- refcount_inc(&head->refs);
- spin_unlock(&delayed_refs->lock);
-
- mutex_lock(&head->mutex);
- mutex_unlock(&head->mutex);
- btrfs_put_delayed_ref_head(head);
- spin_lock(&delayed_refs->lock);
+ if (btrfs_delayed_ref_lock(delayed_refs, head))
continue;
- }
+
spin_lock(&head->lock);
while ((n = rb_first_cached(&head->ref_tree)) != NULL) {
ref = rb_entry(n, struct btrfs_delayed_ref_node,
--
2.14.3
