btrfs_del_qgroup_relation 4817 fs/btrfs/ioctl.c ret = btrfs_del_qgroup_relation(trans, sa->src, sa->dst); btrfs_del_qgroup_relation 243 fs/btrfs/qgroup.h int btrfs_del_qgroup_relation(struct btrfs_trans_handle *trans, u64 src,