M_PRIO
if (m->m_flags & M_PRIO) {
if (m->m_flags & M_PRIO)
m->m_flags |= M_PRIO;
#define MBUF_CLEARFLAGS (M_COPYFLAGS & ~(M_PKTHDR | M_EOR | M_PRIO))
m->m_flags |= M_PRIO;
m->m_flags |= M_PRIO;
m->m_flags |= M_PRIO;
M_LENCHECKED|M_HASH|M_CKHASH|M_PRIO)