From: Stephen Hemminger Date: Mon, 21 Jan 2008 01:19:43 +0000 (-0800) Subject: [PKT_SCHED] SFQ: use net_random X-Git-Tag: v2.6.25-rc1~1162^2~261 X-Git-Url: http://ftp.safe.ca/?a=commitdiff_plain;h=d46f8dd87d9e7d5356891cbe97b8472e74db1413;p=safe%2Fjmp%2Flinux-2.6 [PKT_SCHED] SFQ: use net_random SFQ doesn't need true random numbers, it is only using them to salt a hash. Therefore it is better to use net_random() and avoid any possible problems with depleting the entropy pool. Signed-off-by: Stephen Hemminger Acked-by: Paul E. McKenney Signed-off-by: David S. Miller --- diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index ba3a85e..4179758 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -386,7 +386,7 @@ static void sfq_perturbation(unsigned long arg) struct Qdisc *sch = (struct Qdisc*)arg; struct sfq_sched_data *q = qdisc_priv(sch); - get_random_bytes(&q->perturbation, 4); + q->perturbation = net_random(); if (q->perturb_period) mod_timer(&q->perturb_timer, jiffies + q->perturb_period); @@ -415,7 +415,7 @@ static int sfq_change(struct Qdisc *sch, struct rtattr *opt) del_timer(&q->perturb_timer); if (q->perturb_period) { mod_timer(&q->perturb_timer, jiffies + q->perturb_period); - get_random_bytes(&q->perturbation, 4); + q->perturbation = net_random(); } sch_tree_unlock(sch); return 0; @@ -443,7 +443,7 @@ static int sfq_init(struct Qdisc *sch, struct rtattr *opt) if (opt == NULL) { q->quantum = psched_mtu(sch->dev); q->perturb_period = 0; - get_random_bytes(&q->perturbation, 4); + q->perturbation = net_random(); } else { int err = sfq_change(sch, opt); if (err)