FSRV_ISDOWN
if (FSRV_ISDOWN(mf->mf_server)) {
} else if (FSRV_ISDOWN(mf->mf_server)) {
if (ap->am_mnt && FSRV_ISDOWN(ap->am_mnt->mf_server) && ap->am_parent) {
!FSRV_ISDOWN(mf->mf_server)) {