bsd/kern/uipc_mbuf.c

3743  * in the chain is called a segment.  If maxsegments is not null and the
3745  * for a chain of mbufs.  If maxsegments is zero or the value pointed to
3748  * pointed to by maxsegments.
3752     unsigned int *maxsegments, int wait, int wantall, size_t wantsize)
3792 		if (maxsegments != NULL && *maxsegments == 1) {
3806 	if (maxsegments != NULL) {
3807 		if (*maxsegments && nsegs > *maxsegments) {
3808 			*maxsegments = nsegs;
3811 		*maxsegments = nsegs;