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| author | Davide Caratti <dcaratti@redhat.com> | 2018-01-22 18:14:31 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-23 19:51:46 -0500 |
| commit | f6052cf2fc51772ea51e54c795b9ea234834ad9a (patch) | |
| tree | 1ecf84d1a926ba6a817f75fc8b9de8d817a7ca88 /net/sched | |
| parent | b76f4189df5c54a892ae54ac23908cc54ae7134f (diff) | |
| download | linux-stable-f6052cf2fc51772ea51e54c795b9ea234834ad9a.tar.gz linux-stable-f6052cf2fc51772ea51e54c795b9ea234834ad9a.tar.bz2 linux-stable-f6052cf2fc51772ea51e54c795b9ea234834ad9a.zip | |
net/sched: act_csum: use per-core statistics
use per-CPU counters, like other TC actions do, instead of maintaining one
set of stats across all cores. This allows updating act_csum stats without
the need of protecting them using spin_{,un}lock_bh() invocations.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/act_csum.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c index af4b8ec60d9a..df22da365cd9 100644 --- a/net/sched/act_csum.c +++ b/net/sched/act_csum.c @@ -67,7 +67,7 @@ static int tcf_csum_init(struct net *net, struct nlattr *nla, if (!tcf_idr_check(tn, parm->index, a, bind)) { ret = tcf_idr_create(tn, parm->index, est, a, - &act_csum_ops, bind, false); + &act_csum_ops, bind, true); if (ret) return ret; ret = ACT_P_CREATED; @@ -542,9 +542,9 @@ static int tcf_csum(struct sk_buff *skb, const struct tc_action *a, int action; u32 update_flags; - spin_lock(&p->tcf_lock); tcf_lastuse_update(&p->tcf_tm); - bstats_update(&p->tcf_bstats, skb); + bstats_cpu_update(this_cpu_ptr(p->common.cpu_bstats), skb); + spin_lock(&p->tcf_lock); action = p->tcf_action; update_flags = p->update_flags; spin_unlock(&p->tcf_lock); @@ -566,9 +566,7 @@ static int tcf_csum(struct sk_buff *skb, const struct tc_action *a, return action; drop: - spin_lock(&p->tcf_lock); - p->tcf_qstats.drops++; - spin_unlock(&p->tcf_lock); + qstats_drop_inc(this_cpu_ptr(p->common.cpu_qstats)); return TC_ACT_SHOT; } |