diff options
| -rw-r--r-- | fs/btrfs/disk-io.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 9b7020197c71..3c2886ca7d8c 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3762,6 +3762,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, while ((node = rb_first(&delayed_refs->root)) != NULL) { struct btrfs_delayed_ref_head *head = NULL; + bool pin_bytes = false; ref = rb_entry(node, struct btrfs_delayed_ref_node, rb_node); atomic_set(&ref->refs, 1); @@ -3782,8 +3783,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, } if (head->must_insert_reserved) - btrfs_pin_extent(root, ref->bytenr, - ref->num_bytes, 1); + pin_bytes = true; btrfs_free_delayed_extent_op(head->extent_op); delayed_refs->num_heads--; if (list_empty(&head->cluster)) @@ -3794,9 +3794,13 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, ref->in_tree = 0; rb_erase(&ref->rb_node, &delayed_refs->root); delayed_refs->num_entries--; - if (head) - mutex_unlock(&head->mutex); spin_unlock(&delayed_refs->lock); + if (head) { + if (pin_bytes) + btrfs_pin_extent(root, ref->bytenr, + ref->num_bytes, 1); + mutex_unlock(&head->mutex); + } btrfs_put_delayed_ref(ref); cond_resched(); |