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There is NO reason to use arc4random() here, and it needlessly slows down the

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forwarding path, so goodbye.
This commit is contained in:
mycroft 2003-10-07 21:22:11 +00:00
parent f4f3bc1663
commit bef90cbfa4
4 changed files with 12 additions and 12 deletions

6
sys/altq/altq_blue.c

@ -1,4 +1,4 @@
/* $NetBSD: altq_blue.c,v 1.6 2003/09/05 22:43:01 itojun Exp $ */
/* $NetBSD: altq_blue.c,v 1.7 2003/10/07 21:22:11 mycroft Exp $ */
/* $KAME: altq_blue.c,v 1.8 2002/01/07 11:25:40 kjc Exp $ */
/*
@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: altq_blue.c,v 1.6 2003/09/05 22:43:01 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: altq_blue.c,v 1.7 2003/10/07 21:22:11 mycroft Exp $");
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include "opt_altq.h"
@ -511,7 +511,7 @@ static int
drop_early(rp)
blue_t *rp;
{
if ((arc4random() % rp->blue_max_pmark) < rp->blue_pmark) {
if ((random() % rp->blue_max_pmark) < rp->blue_pmark) {
/* drop or mark */
return (1);
}

6
sys/altq/altq_cdnr.c

@ -1,4 +1,4 @@
/* $NetBSD: altq_cdnr.c,v 1.5 2003/09/05 22:43:02 itojun Exp $ */
/* $NetBSD: altq_cdnr.c,v 1.6 2003/10/07 21:22:11 mycroft Exp $ */
/* $KAME: altq_cdnr.c,v 1.8 2000/12/14 08:12:45 thorpej Exp $ */
/*
@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: altq_cdnr.c,v 1.5 2003/09/05 22:43:02 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: altq_cdnr.c,v 1.6 2003/10/07 21:22:11 mycroft Exp $");
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include "opt_altq.h"
@ -846,7 +846,7 @@ tswtcm_input(cb, pktinfo)
* marker
*/
if (avg_rate > tsw->cmtd_rate) {
u_int32_t randval = arc4random() % avg_rate;
u_int32_t randval = random() % avg_rate;
if (avg_rate > tsw->peak_rate) {
if (randval < avg_rate - tsw->peak_rate) {

6
sys/altq/altq_red.c

@ -1,4 +1,4 @@
/* $NetBSD: altq_red.c,v 1.7 2003/09/05 22:43:02 itojun Exp $ */
/* $NetBSD: altq_red.c,v 1.8 2003/10/07 21:22:11 mycroft Exp $ */
/* $KAME: altq_red.c,v 1.9 2002/01/07 11:25:40 kjc Exp $ */
/*
@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: altq_red.c,v 1.7 2003/09/05 22:43:02 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: altq_red.c,v 1.8 2003/10/07 21:22:11 mycroft Exp $");
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include "opt_altq.h"
@ -812,7 +812,7 @@ drop_early(fp_len, fp_probd, count)
* drop probability = (avg - TH_MIN) / d
*/
if ((arc4random() % d) < fp_len) {
if ((random() % d) < fp_len) {
/* drop or mark */
return (1);
}

6
sys/altq/altq_rmclass.c

@ -1,4 +1,4 @@
/* $NetBSD: altq_rmclass.c,v 1.6 2003/09/05 22:43:03 itojun Exp $ */
/* $NetBSD: altq_rmclass.c,v 1.7 2003/10/07 21:22:11 mycroft Exp $ */
/* $KAME: altq_rmclass.c,v 1.9 2000/12/14 08:12:46 thorpej Exp $ */
/*
@ -38,7 +38,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: altq_rmclass.c,v 1.6 2003/09/05 22:43:03 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: altq_rmclass.c,v 1.7 2003/10/07 21:22:11 mycroft Exp $");
#ident "@(#)rm_class.c 1.48 97/12/05 SMI"
@ -1828,7 +1828,7 @@ _getq_random(q)
} else {
struct mbuf *prev = NULL;
n = arc4random() % qlen(q) + 1;
n = random() % qlen(q) + 1;
for (i = 0; i < n; i++) {
prev = m;
m = m->m_nextpkt;