UVMPAGER_MAPIN_WAITOK
if ((flags & UVMPAGER_MAPIN_WAITOK) != 0) {
if (flags & UVMPAGER_MAPIN_WAITOK)
mapinflags |= UVMPAGER_MAPIN_WAITOK;
swmapflags |= UVMPAGER_MAPIN_WAITOK;
mapinflags | UVMPAGER_MAPIN_WAITOK);