1 files changed, 0 insertions, 80 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 47598e525ea5..f5d30c04ba66 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4529,86 +4529,6 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
 	btrfs_wait_ordered_roots(fs_info, U64_MAX, NULL);
 }
 
-static void btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
-				       struct btrfs_fs_info *fs_info)
-{
-	struct rb_node *node;
-	struct btrfs_delayed_ref_root *delayed_refs = &trans->delayed_refs;
-	struct btrfs_delayed_ref_node *ref;
-
-	spin_lock(&delayed_refs->lock);
-	while ((node = rb_first_cached(&delayed_refs->href_root)) != NULL) {
-		struct btrfs_delayed_ref_head *head;
-		struct rb_node *n;
-		bool pin_bytes = false;
-
-		head = rb_entry(node, struct btrfs_delayed_ref_head,
-				href_node);
-		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,
-				       ref_node);
-			rb_erase_cached(&ref->ref_node, &head->ref_tree);
-			RB_CLEAR_NODE(&ref->ref_node);
-			if (!list_empty(&ref->add_list))
-				list_del(&ref->add_list);
-			atomic_dec(&delayed_refs->num_entries);
-			btrfs_put_delayed_ref(ref);
-			btrfs_delayed_refs_rsv_release(fs_info, 1, 0);
-		}
-		if (head->must_insert_reserved)
-			pin_bytes = true;
-		btrfs_free_delayed_extent_op(head->extent_op);
-		btrfs_delete_ref_head(delayed_refs, head);
-		spin_unlock(&head->lock);
-		spin_unlock(&delayed_refs->lock);
-		mutex_unlock(&head->mutex);
-
-		if (pin_bytes) {
-			struct btrfs_block_group *cache;
-
-			cache = btrfs_lookup_block_group(fs_info, head->bytenr);
-			if (WARN_ON_ONCE(cache == NULL)) {
-				/*
-				 * Unexpected and there's nothing we can do here
-				 * because we are in a transaction abort path,
-				 * so any errors can only be ignored or reported
-				 * while attempting to cleanup all resources.
-				 */
-				btrfs_err(fs_info,
-"block group for delayed ref at %llu was not found while destroying ref head",
-					  head->bytenr);
-			} else {
-				spin_lock(&cache->space_info->lock);
-				spin_lock(&cache->lock);
-				cache->pinned += head->num_bytes;
-				btrfs_space_info_update_bytes_pinned(fs_info,
-								     cache->space_info,
-								     head->num_bytes);
-				cache->reserved -= head->num_bytes;
-				cache->space_info->bytes_reserved -= head->num_bytes;
-				spin_unlock(&cache->lock);
-				spin_unlock(&cache->space_info->lock);
-
-				btrfs_put_block_group(cache);
-			}
-
-			btrfs_error_unpin_extent_range(fs_info, head->bytenr,
-				head->bytenr + head->num_bytes - 1);
-		}
-		btrfs_cleanup_ref_head_accounting(fs_info, delayed_refs, head);
-		btrfs_put_delayed_ref_head(head);
-		cond_resched();
-		spin_lock(&delayed_refs->lock);
-	}
-	btrfs_qgroup_destroy_extent_records(trans);
-
-	spin_unlock(&delayed_refs->lock);
-}
-
 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root)
 {
 	struct btrfs_inode *btrfs_inode;