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On Wed, 2013-08-28 at 19:29 +0300, Julian Anastasov wrote:
> When reading percpu stats we need to properly reset
> the sum when CPU 0 is not present in the possible mask.
Not a very common case, but still possible.
> Signed-off-by: Julian Anastasov <ja@xxxxxx>
Acked-by: Hans Schillstrom <hans@xxxxxxxxxxxxxxx>
> ---
> net/netfilter/ipvs/ip_vs_est.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c
> index 6bee6d0..1425e9a 100644
> --- a/net/netfilter/ipvs/ip_vs_est.c
> +++ b/net/netfilter/ipvs/ip_vs_est.c
> @@ -59,12 +59,13 @@ static void ip_vs_read_cpu_stats(struct ip_vs_stats_user
> *sum,
> struct ip_vs_cpu_stats __percpu *stats)
> {
> int i;
> + bool add = false;
>
> for_each_possible_cpu(i) {
> struct ip_vs_cpu_stats *s = per_cpu_ptr(stats, i);
> unsigned int start;
> __u64 inbytes, outbytes;
> - if (i) {
> + if (add) {
> sum->conns += s->ustats.conns;
> sum->inpkts += s->ustats.inpkts;
> sum->outpkts += s->ustats.outpkts;
> @@ -76,6 +77,7 @@ static void ip_vs_read_cpu_stats(struct ip_vs_stats_user
> *sum,
> sum->inbytes += inbytes;
> sum->outbytes += outbytes;
> } else {
> + add = true;
> sum->conns = s->ustats.conns;
> sum->inpkts = s->ustats.inpkts;
> sum->outpkts = s->ustats.outpkts;
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