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[mbufq] add a concat method.

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Reviewed by:	gnn, ae, glebius
Approved by:	ae, glebius
Differential Revision:	https://reviews.freebsd.org/D10158
This commit is contained in:
adrian 2017-03-30 02:34:21 +00:00
parent bb8d049f06
commit 54d8b34ae4
1 changed files with 13 additions and 0 deletions
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13
sys/sys/mbuf.h
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@ -1320,5 +1320,18 @@ mbufq_prepend(struct mbufq *mq, struct mbuf *m)
STAILQ_INSERT_HEAD(&mq->mq_head, m, m_stailqpkt);
mq->mq_len++;
}
/*
* Note: this doesn't enforce the maximum list size for dst.
*/
static inline void
mbufq_concat(struct mbufq *mq_dst, struct mbufq *mq_src)
{
mq_dst->mq_len += mq_src->mq_len;
STAILQ_CONCAT(&mq_dst->mq_head, &mq_src->mq_head);
mq_src->mq_len = 0;
}
#endif /* _KERNEL */
#endif /* !_SYS_MBUF_H_ */