Messages in this thread | | | Date | Mon, 25 Nov 2013 13:50:05 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH net] macvtap: fix tx_dropped counting error |
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On Mon, Nov 25, 2013 at 05:19:04PM +0800, Jason Wang wrote: > After commit 8ffab51b3dfc54876f145f15b351c41f3f703195 > (macvlan: lockless tx path), tx stat counter were converted to percpu stat > structure. So we need use to this also for tx_dropped in macvtap. Otherwise, the > management won't notice the dropping packet in macvtap tx path. > > Cc: Michael S. Tsirkin <mst@redhat.com> > Cc: Vlad Yasevich <vyasevic@redhat.com> > Cc: Eric Dumazet <edumazet@google.com> > Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
> --- > drivers/net/macvtap.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c > index dc76670..0605da8 100644 > --- a/drivers/net/macvtap.c > +++ b/drivers/net/macvtap.c > @@ -744,7 +744,7 @@ err: > rcu_read_lock(); > vlan = rcu_dereference(q->vlan); > if (vlan) > - vlan->dev->stats.tx_dropped++; > + this_cpu_inc(vlan->pcpu_stats->tx_dropped); > rcu_read_unlock(); > > return err; > -- > 1.8.3.2
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