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On Tuesday 12 October 2010 18:02:37 Daniel Lezcano wrote:
> On 10/08/2010 01:16 PM, Hans Schillstrom wrote:
> > This patch just contains ip_vs_core.c
> >
> > Signed-off-by:Hans Schillstrom<hans.schillstrom@xxxxxxxxxxxx>
> >
> > diff --git a/net/netfilter/ipvs/ip_vs_core.c
> > b/net/netfilter/ipvs/ip_vs_core.c
> > index 0c043b6..4fdc5cb 100644
> > --- a/net/netfilter/ipvs/ip_vs_core.c
> > +++ b/net/netfilter/ipvs/ip_vs_core.c
> > @@ -52,7 +52,6 @@
> >
> > #include<net/ip_vs.h>
> >
> > -
> > EXPORT_SYMBOL(register_ip_vs_scheduler);
> > EXPORT_SYMBOL(unregister_ip_vs_scheduler);
> > EXPORT_SYMBOL(ip_vs_proto_name);
> > @@ -67,6 +66,8 @@ EXPORT_SYMBOL(ip_vs_conn_put);
> > EXPORT_SYMBOL(ip_vs_get_debug_level);
> > #endif
> >
> > +/* netns cnt used for uniqueness */
> > +static atomic_t ipvs_netns_cnt = ATOMIC_INIT(0);
> >
>
> Why is this counter needed ?
>
It's an incarnation counter that's used globally to name
- cachemem
- master/backup thread
> [ cut ]
>
> > + * Initialize IP Virtual Server netns mem.
> > + */
> > +static int __net_init __ip_vs_init(struct net *net)
> > +{
> > + struct netns_ipvs *ipvs = 0;
> >
> > + ipvs = kzalloc(sizeof(struct netns_ipvs), GFP_ATOMIC);
> > + if( ipvs == NULL ) {
> > + pr_err("%s(): no memory.\n", __func__);
> > + return -ENOMEM;
> > + }
> > + ipvs->inc = atomic_read(&ipvs_netns_cnt);
> >
>
> AFAICS, this counter is never used. Is it really needed ?
>
> > + atomic_inc(&ipvs_netns_cnt);
> > + IP_VS_DBG(10, "Creating new netns *net=%p *ipvs=%p size=%lu\n",
> > + net, ipvs, sizeof(struct netns_ipvs));
> > + net->ipvs = ipvs;
> > +
> > + return 0;
> > +}
> >
>
>
--
Regards
Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
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