1 files changed, 20 insertions, 7 deletions

diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c
index b21da1446f2a..f169378e2ca6 100644
--- a/fs/btrfs/free-space-tree.c
+++ b/fs/btrfs/free-space-tree.c
@@ -1280,7 +1280,10 @@ int btrfs_delete_free_space_tree(struct btrfs_fs_info *fs_info)
 		goto abort;
 
 	btrfs_global_root_delete(free_space_root);
+
+	spin_lock(&fs_info->trans_lock);
 	list_del(&free_space_root->dirty_list);
+	spin_unlock(&fs_info->trans_lock);
 
 	btrfs_tree_lock(free_space_root->node);
 	btrfs_clear_buffer_dirty(trans, free_space_root->node);
@@ -1512,9 +1515,13 @@ static int load_free_space_bitmaps(struct btrfs_caching_control *caching_ctl,
 			if (prev_bit == 0 && bit == 1) {
 				extent_start = offset;
 			} else if (prev_bit == 1 && bit == 0) {
-				total_found += add_new_free_space(block_group,
-								  extent_start,
-								  offset);
+				u64 space_added;
+
+				ret = add_new_free_space(block_group, extent_start,
+							 offset, &space_added);
+				if (ret)
+					goto out;
+				total_found += space_added;
 				if (total_found > CACHING_CTL_WAKE_UP) {
 					total_found = 0;
 					wake_up(&caching_ctl->wait);
@@ -1526,8 +1533,9 @@ static int load_free_space_bitmaps(struct btrfs_caching_control *caching_ctl,
 		}
 	}
 	if (prev_bit == 1) {
-		total_found += add_new_free_space(block_group, extent_start,
-						  end);
+		ret = add_new_free_space(block_group, extent_start, end, NULL);
+		if (ret)
+			goto out;
 		extent_count++;
 	}
 
@@ -1566,6 +1574,8 @@ static int load_free_space_extents(struct btrfs_caching_control *caching_ctl,
 	end = block_group->start + block_group->length;
 
 	while (1) {
+		u64 space_added;
+
 		ret = btrfs_next_item(root, path);
 		if (ret < 0)
 			goto out;
@@ -1580,8 +1590,11 @@ static int load_free_space_extents(struct btrfs_caching_control *caching_ctl,
 		ASSERT(key.type == BTRFS_FREE_SPACE_EXTENT_KEY);
 		ASSERT(key.objectid < end && key.objectid + key.offset <= end);
 
-		total_found += add_new_free_space(block_group, key.objectid,
-						  key.objectid + key.offset);
+		ret = add_new_free_space(block_group, key.objectid,
+					 key.objectid + key.offset, &space_added);
+		if (ret)
+			goto out;
+		total_found += space_added;
 		if (total_found > CACHING_CTL_WAKE_UP) {
 			total_found = 0;
 			wake_up(&caching_ctl->wait);