PR_FASTHZ
timer = igmp->igmp_code * PR_FASTHZ / IGMP_TIMER_SCALE;
timer = IGMP_MAX_HOST_REPORT_DELAY * PR_FASTHZ;
IGMP_MAX_HOST_REPORT_DELAY*PR_FASTHZ);
#define IGMP_FASTTIMO (hz / PR_FASTHZ)
#define ICMP6_FASTTIMO (hz / PR_FASTHZ)
MLD6_UNSOLICITED_REPORT_INTERVAL * PR_FASTHZ);
timer = ntohs(mldh->mld_maxdelay) * PR_FASTHZ /