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[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 <stephen.hemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 3 additions and 3 deletions
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@ -386,7 +386,7 @@ static void sfq_perturbation(unsigned long arg)
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struct Qdisc *sch = (struct Qdisc*)arg;
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struct sfq_sched_data *q = qdisc_priv(sch);
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get_random_bytes(&q->perturbation, 4);
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q->perturbation = net_random();
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if (q->perturb_period)
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mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
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@ -415,7 +415,7 @@ static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
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del_timer(&q->perturb_timer);
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if (q->perturb_period) {
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mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
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get_random_bytes(&q->perturbation, 4);
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q->perturbation = net_random();
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}
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sch_tree_unlock(sch);
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return 0;
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@ -443,7 +443,7 @@ static int sfq_init(struct Qdisc *sch, struct rtattr *opt)
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if (opt == NULL) {
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q->quantum = psched_mtu(sch->dev);
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q->perturb_period = 0;
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get_random_bytes(&q->perturbation, 4);
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q->perturbation = net_random();
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} else {
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int err = sfq_change(sch, opt);
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if (err)
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