From 68dfb42798e1eb2d42acbf872925cc75f1487d9b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 8 Jul 2008 22:57:31 -0700
Subject: [PATCH] pkt_sched: Kill stats_lock member of struct Qdisc.
It is always equal to qdisc->dev_queue->lock
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sch_generic.h | 1 -
net/sched/sch_api.c | 9 ++++-----
net/sched/sch_generic.c | 1 -
3 files changed, 4 insertions(+), 7 deletions(-)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 66ec36d8ac97..ea71705e9c77 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -43,7 +43,6 @@ struct Qdisc
struct gnet_stats_basic bstats;
struct gnet_stats_queue qstats;
struct gnet_stats_rate_est rate_est;
- spinlock_t *stats_lock;
struct rcu_head q_rcu;
int (*reshape_fail)(struct sk_buff *skb,
struct Qdisc *q);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 4003c280b69f..e73bd68aa7ae 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -604,7 +604,6 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
sch->parent = parent;
- sch->stats_lock = &dev_queue->lock;
if (handle == TC_H_INGRESS) {
sch->flags |= TCQ_F_INGRESS;
handle = TC_H_MAKE(TC_H_INGRESS, 0);
@@ -622,7 +621,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
if (!ops->init || (err = ops->init(sch, tca[TCA_OPTIONS])) == 0) {
if (tca[TCA_RATE]) {
err = gen_new_estimator(&sch->bstats, &sch->rate_est,
- sch->stats_lock,
+ &sch->dev_queue->lock,
tca[TCA_RATE]);
if (err) {
/*
@@ -664,7 +663,7 @@ static int qdisc_change(struct Qdisc *sch, struct nlattr **tca)
}
if (tca[TCA_RATE])
gen_replace_estimator(&sch->bstats, &sch->rate_est,
- sch->stats_lock, tca[TCA_RATE]);
+ &sch->dev_queue->lock, tca[TCA_RATE]);
return 0;
}
@@ -954,7 +953,7 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
q->qstats.qlen = q->q.qlen;
if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
- TCA_XSTATS, q->stats_lock, &d) < 0)
+ TCA_XSTATS, &q->dev_queue->lock, &d) < 0)
goto nla_put_failure;
if (q->ops->dump_stats && q->ops->dump_stats(q, &d) < 0)
@@ -1203,7 +1202,7 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
goto nla_put_failure;
if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS,
- TCA_XSTATS, q->stats_lock, &d) < 0)
+ TCA_XSTATS, &q->dev_queue->lock, &d) < 0)
goto nla_put_failure;
if (cl_ops->dump_stats && cl_ops->dump_stats(q, cl, &d) < 0)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 3223e5ba76aa..dda78ee314ec 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -484,7 +484,6 @@ struct Qdisc * qdisc_create_dflt(struct net_device *dev,
sch = qdisc_alloc(dev_queue, ops);
if (IS_ERR(sch))
goto errout;
- sch->stats_lock = &dev_queue->lock;
sch->parent = parentid;
if (!ops->init || ops->init(sch, NULL) == 0)