diff options
Diffstat (limited to 'freebsd/sys/sys/mbuf.h')
| -rw-r--r-- | freebsd/sys/sys/mbuf.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/freebsd/sys/sys/mbuf.h b/freebsd/sys/sys/mbuf.h index 12328751..b6d58a25 100644 --- a/freebsd/sys/sys/mbuf.h +++ b/freebsd/sys/sys/mbuf.h @@ -396,7 +396,6 @@ struct mbstat { * * The rest of it is defined in kern/kern_mbuf.c */ - extern uma_zone_t zone_mbuf; extern uma_zone_t zone_clust; extern uma_zone_t zone_pack; @@ -451,6 +450,28 @@ m_gettype(int size) return (type); } +/* + * Associated an external reference counted buffer with an mbuf. + */ +static __inline void +m_extaddref(struct mbuf *m, caddr_t buf, u_int size, u_int *ref_cnt, + void (*freef)(void *, void *), void *arg1, void *arg2) +{ + + KASSERT(ref_cnt != NULL, ("%s: ref_cnt not provided", __func__)); + + atomic_add_int((int*)ref_cnt, 1); + m->m_flags |= M_EXT; + m->m_ext.ext_buf = buf; + m->m_ext.ref_cnt = ref_cnt; + m->m_data = m->m_ext.ext_buf; + m->m_ext.ext_size = size; + m->m_ext.ext_free = freef; + m->m_ext.ext_arg1 = arg1; + m->m_ext.ext_arg2 = arg2; + m->m_ext.ext_type = EXT_EXTREF; +} + static __inline uma_zone_t m_getzone(int size) { |