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Diffstat (limited to 'net/sched/sch_htb.c')
-rw-r--r--net/sched/sch_htb.c48
1 files changed, 27 insertions, 21 deletions
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 9f949abcacef..f1acb0f60dc3 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -103,7 +103,7 @@ struct htb_class {
u32 prio; /* these two are used only by leaves... */
int quantum; /* but stored for parent-to-leaf return */
- struct tcf_proto *filter_list; /* class attached filters */
+ struct tcf_proto __rcu *filter_list; /* class attached filters */
int filter_cnt;
int refcnt; /* usage count of this class */
@@ -153,7 +153,7 @@ struct htb_sched {
int rate2quantum; /* quant = rate / rate2quantum */
/* filters for qdisc itself */
- struct tcf_proto *filter_list;
+ struct tcf_proto __rcu *filter_list;
#define HTB_WARN_TOOMANYEVENTS 0x1
unsigned int warned; /* only one warning */
@@ -223,9 +223,9 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
if (cl->level == 0)
return cl;
/* Start with inner filter chain if a non-leaf class is selected */
- tcf = cl->filter_list;
+ tcf = rcu_dereference_bh(cl->filter_list);
} else {
- tcf = q->filter_list;
+ tcf = rcu_dereference_bh(q->filter_list);
}
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
@@ -251,7 +251,7 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
return cl; /* we hit leaf; return it */
/* we have got inner class; apply inner filter chain */
- tcf = cl->filter_list;
+ tcf = rcu_dereference_bh(cl->filter_list);
}
/* classification failed; try to use default class */
cl = htb_find(TC_H_MAKE(TC_H_MAJ(sch->handle), q->defcls), sch);
@@ -586,13 +586,13 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch)
#ifdef CONFIG_NET_CLS_ACT
} else if (!cl) {
if (ret & __NET_XMIT_BYPASS)
- sch->qstats.drops++;
+ qdisc_qstats_drop(sch);
kfree_skb(skb);
return ret;
#endif
} else if ((ret = qdisc_enqueue(skb, cl->un.leaf.q)) != NET_XMIT_SUCCESS) {
if (net_xmit_drop_count(ret)) {
- sch->qstats.drops++;
+ qdisc_qstats_drop(sch);
cl->qstats.drops++;
}
return ret;
@@ -895,7 +895,7 @@ ok:
if (!sch->q.qlen)
goto fin;
- q->now = ktime_to_ns(ktime_get());
+ q->now = ktime_get_ns();
start_at = jiffies;
next_event = q->now + 5LLU * NSEC_PER_SEC;
@@ -925,14 +925,14 @@ ok:
goto ok;
}
}
- sch->qstats.overlimits++;
+ qdisc_qstats_overlimit(sch);
if (likely(next_event > q->now)) {
if (!test_bit(__QDISC_STATE_DEACTIVATED,
&qdisc_root_sleeping(q->watchdog.qdisc)->state)) {
ktime_t time = ns_to_ktime(next_event);
qdisc_throttled(q->watchdog.qdisc);
hrtimer_start(&q->watchdog.timer, time,
- HRTIMER_MODE_ABS);
+ HRTIMER_MODE_ABS_PINNED);
}
} else {
schedule_work(&q->work);
@@ -1044,7 +1044,7 @@ static int htb_init(struct Qdisc *sch, struct nlattr *opt)
qdisc_watchdog_init(&q->watchdog, sch);
INIT_WORK(&q->work, htb_work_func);
- skb_queue_head_init(&q->direct_queue);
+ __skb_queue_head_init(&q->direct_queue);
if (tb[TCA_HTB_DIRECT_QLEN])
q->direct_qlen = nla_get_u32(tb[TCA_HTB_DIRECT_QLEN]);
@@ -1138,15 +1138,16 @@ static int
htb_dump_class_stats(struct Qdisc *sch, unsigned long arg, struct gnet_dump *d)
{
struct htb_class *cl = (struct htb_class *)arg;
+ __u32 qlen = 0;
if (!cl->level && cl->un.leaf.q)
- cl->qstats.qlen = cl->un.leaf.q->q.qlen;
+ qlen = cl->un.leaf.q->q.qlen;
cl->xstats.tokens = PSCHED_NS2TICKS(cl->tokens);
cl->xstats.ctokens = PSCHED_NS2TICKS(cl->ctokens);
- if (gnet_stats_copy_basic(d, &cl->bstats) < 0 ||
+ if (gnet_stats_copy_basic(d, NULL, &cl->bstats) < 0 ||
gnet_stats_copy_rate_est(d, NULL, &cl->rate_est) < 0 ||
- gnet_stats_copy_queue(d, &cl->qstats) < 0)
+ gnet_stats_copy_queue(d, NULL, &cl->qstats, qlen) < 0)
return -1;
return gnet_stats_copy_app(d, &cl->xstats, sizeof(cl->xstats));
@@ -1225,7 +1226,7 @@ static void htb_parent_to_leaf(struct htb_sched *q, struct htb_class *cl,
parent->un.leaf.q = new_q ? new_q : &noop_qdisc;
parent->tokens = parent->buffer;
parent->ctokens = parent->cbuffer;
- parent->t_c = ktime_to_ns(ktime_get());
+ parent->t_c = ktime_get_ns();
parent->cmode = HTB_CAN_SEND;
}
@@ -1402,7 +1403,8 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
goto failure;
if (htb_rate_est || tca[TCA_RATE]) {
- err = gen_new_estimator(&cl->bstats, &cl->rate_est,
+ err = gen_new_estimator(&cl->bstats, NULL,
+ &cl->rate_est,
qdisc_root_sleeping_lock(sch),
tca[TCA_RATE] ? : &est.nla);
if (err) {
@@ -1455,7 +1457,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
cl->tokens = PSCHED_TICKS2NS(hopt->buffer);
cl->ctokens = PSCHED_TICKS2NS(hopt->cbuffer);
cl->mbuffer = 60ULL * NSEC_PER_SEC; /* 1min */
- cl->t_c = ktime_to_ns(ktime_get());
+ cl->t_c = ktime_get_ns();
cl->cmode = HTB_CAN_SEND;
/* attach to the hash list and parent's family */
@@ -1464,8 +1466,11 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
parent->children++;
} else {
if (tca[TCA_RATE]) {
- err = gen_replace_estimator(&cl->bstats, &cl->rate_est,
- qdisc_root_sleeping_lock(sch),
+ spinlock_t *lock = qdisc_root_sleeping_lock(sch);
+
+ err = gen_replace_estimator(&cl->bstats, NULL,
+ &cl->rate_est,
+ lock,
tca[TCA_RATE]);
if (err)
return err;
@@ -1519,11 +1524,12 @@ failure:
return err;
}
-static struct tcf_proto **htb_find_tcf(struct Qdisc *sch, unsigned long arg)
+static struct tcf_proto __rcu **htb_find_tcf(struct Qdisc *sch,
+ unsigned long arg)
{
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = (struct htb_class *)arg;
- struct tcf_proto **fl = cl ? &cl->filter_list : &q->filter_list;
+ struct tcf_proto __rcu **fl = cl ? &cl->filter_list : &q->filter_list;
return fl;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 19:58:55 +0300