M_EXT_RW
m->m_flags |= M_EXT_RW;
m->m_flags |= M_EXT_RW; /* we own the buffer */
ctl_mbuf->m_flags |= M_EXT_RW;
ctl_mbuf->m_flags |= M_EXT_RW;
m->m_flags |= M_EXT_RW;
chunk->m->m_flags |= M_EXT_RW;
m_new->m_flags |= M_EXT_RW;
m->m_flags |= M_EXT_RW;
m->m_flags |= M_EXT_RW;
m_new->m_flags |= M_EXT_RW;
mnew->m_flags |= M_EXT_RW;
data->m->m_flags |= M_EXT_RW;
M_EXT|M_EXT_CLUSTER|M_EXT_RW;
M_EXT|M_EXT_RW; \
(((m)->m_flags & (M_EXT_ROMAP|M_EXT_RW)) != M_EXT_RW || \