xfs_fsop_setdm_handlereq_t 332 fs/xfs/xfs_ioctl.c xfs_fsop_setdm_handlereq_t dmhreq; xfs_fsop_setdm_handlereq_t 337 fs/xfs/xfs_ioctl.c if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t)))