reserved_ret     3408 fs/btrfs/qgroup.c 			struct extent_changeset **reserved_ret, u64 start,
reserved_ret     3424 fs/btrfs/qgroup.c 	if (WARN_ON(!reserved_ret))
reserved_ret     3426 fs/btrfs/qgroup.c 	if (!*reserved_ret) {
reserved_ret     3427 fs/btrfs/qgroup.c 		*reserved_ret = extent_changeset_alloc();
reserved_ret     3428 fs/btrfs/qgroup.c 		if (!*reserved_ret)
reserved_ret     3431 fs/btrfs/qgroup.c 	reserved = *reserved_ret;