btrfs: make btrfs_destroy_delayed_refs use btrfs_delete_ref_head

Instead of open coding this stuff use the helper instead.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b723ad9bd1e620949584a5ed59bc59a0185c0e06..de4b7ed02da11ae2463ff1639f6c0224b45958b6 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4264,12 +4264,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
                if (head->must_insert_reserved)
                        pin_bytes = true;
                btrfs_free_delayed_extent_op(head->extent_op);
-               delayed_refs->num_heads--;
-               if (head->processing == 0)
-                       delayed_refs->num_heads_ready--;
-               atomic_dec(&delayed_refs->num_entries);
-               rb_erase_cached(&head->href_node, &delayed_refs->href_root);
-               RB_CLEAR_NODE(&head->href_node);
+               btrfs_delete_ref_head(delayed_refs, head);
                spin_unlock(&head->lock);
                spin_unlock(&delayed_refs->lock);
                mutex_unlock(&head->mutex);