Symbol: CB_PRESERVE
sys/kern/uipc_mbuf.c
1519
error = m_copyback_internal(mp, off, len, NULL, CB_PRESERVE|CB_COW,
sys/kern/uipc_mbuf.c
1549
KASSERT((flags & CB_PRESERVE) == 0 || cp == NULL);
sys/kern/uipc_mbuf.c
1668
if (flags & CB_PRESERVE)