btrfs: delayed-ref: Use list to replace the ref_root in ref_head.

[cascardo/linux.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 7f83778..695363a 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4062,6 +4062,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 
        while ((node = rb_first(&delayed_refs->href_root)) != NULL) {
                struct btrfs_delayed_ref_head *head;
+               struct btrfs_delayed_ref_node *tmp;
                bool pin_bytes = false;
 
                head = rb_entry(node, struct btrfs_delayed_ref_head,
@@ -4077,11 +4078,10 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
                        continue;
                }
                spin_lock(&head->lock);
-               while ((node = rb_first(&head->ref_root)) != NULL) {
-                       ref = rb_entry(node, struct btrfs_delayed_ref_node,
-                                      rb_node);
+               list_for_each_entry_safe_reverse(ref, tmp, &head->ref_list,
+                                                list) {
                        ref->in_tree = 0;
-                       rb_erase(&ref->rb_node, &head->ref_root);
+                       list_del(&ref->list);
                        atomic_dec(&delayed_refs->num_entries);
                        btrfs_put_delayed_ref(ref);
                }