M_USE_INTERRUPT_RESERVE
mpipe->mflags |= M_USE_RESERVE | M_USE_INTERRUPT_RESERVE;
if (flags & M_USE_INTERRUPT_RESERVE)
M_USE_RESERVE | M_USE_INTERRUPT_RESERVE)
#define M_INTWAIT (M_WAITOK | M_USE_RESERVE | M_USE_INTERRUPT_RESERVE)