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net: sched: enable per cpu qstats

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After previous patches to simplify qstats the qstats can be
made per cpu with a packed union in Qdisc struct.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend
2014-09-28 11:54:24 -07:00
committed by David S. Miller
parent 6401585366
commit b0ab6f9275
17 changed files with 87 additions and 25 deletions
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include/net/sch_generic.h
+11 -1
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@@ -90,7 +90,10 @@ struct Qdisc {
struct gnet_stats_basic_cpu __percpu *cpu_bstats;
} __packed;
unsigned int __state;
struct gnet_stats_queue qstats;
union {
struct gnet_stats_queue qstats;
struct gnet_stats_queue __percpu *cpu_qstats;
} __packed;
struct rcu_head rcu_head;
int padded;
atomic_t refcnt;
@@ -543,6 +546,13 @@ static inline void qdisc_qstats_drop(struct Qdisc *sch)
sch->qstats.drops++;
}
static inline void qdisc_qstats_drop_cpu(struct Qdisc *sch)
{
struct gnet_stats_queue *qstats = this_cpu_ptr(sch->cpu_qstats);
qstats->drops++;
}
static inline void qdisc_qstats_overlimit(struct Qdisc *sch)
{
sch->qstats.overlimits++;