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On Sun, Aug 10, 2008 at 08:35:48PM +0200, Sven Wegener wrote:
> On Sun, 10 Aug 2008, sven.wegener@xxxxxxxxxxx wrote:
>
> > Hi guys,
> >
> > here come a couple of fixes and cleanups for IPVS. Worth mentioning are the
> > two
> > possible deadlock fixes. One introduced by my last sync daemon work, which
> > hasn't hit any stable kernel yet. The other one is in the estimator code and
> > goes back to at leat since we started working with git for the kernel. The
> > latter I think qualifies for -stable.
> >
> > I've pushed the changes (8123b42..2e45552) based on davem's net tree here
> >
> > git://git.stealer.net/linux-2.6.git stealer/ipvs/for-davem
>
> I've included the register_ip_vs_protocol() annotation. Changes are now
> 8123b42..7ead17b. Diffstat has changed slightly, but is probably not worth
> posting again.
Hi Sven,
all these changes seem fine to me.
Acked-by: Simon Horman <horms@xxxxxxxxxxxx>
With regards to ip_vs_zero_stats(), it uses
memset(stats, 0, (char *)&stats->lock - (char *)stats);
to clear stats and then calls ip_vs_zero_estimator(), which uses
est->last_conns = 0;
est->last_inpkts = 0;
...
to clear stats->est.
I wonder if it would be cleaner to either clear
stats->... directly in ip_vs_zero_stats(), or use
memset in ip_vs_zero_estimator()?
Something like this...
----------------------------------------------------------------
ipvs: Use memset to clear estimator
This makes the code in ip_vs_zero_estimator() a lot closer
to the style of its parent, ip_vs_zero_stats().
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
Index: net-2.6/include/net/ip_vs.h
===================================================================
--- net-2.6.orig/include/net/ip_vs.h 2008-08-11 10:43:23.000000000 +1000
+++ net-2.6/include/net/ip_vs.h 2008-08-11 10:43:23.000000000 +1000
@@ -143,8 +143,6 @@ struct ip_vs_seq {
* IPVS statistics objects
*/
struct ip_vs_estimator {
- struct list_head list;
-
u32 last_conns;
u32 last_inpkts;
u32 last_outpkts;
@@ -156,6 +154,8 @@ struct ip_vs_estimator {
u32 outpps;
u32 inbps;
u32 outbps;
+
+ struct list_head list;
};
struct ip_vs_stats
Index: net-2.6/net/ipv4/ipvs/ip_vs_est.c
===================================================================
--- net-2.6.orig/net/ipv4/ipvs/ip_vs_est.c 2008-08-11 10:43:23.000000000
+1000
+++ net-2.6/net/ipv4/ipvs/ip_vs_est.c 2008-08-11 10:43:23.000000000 +1000
@@ -149,14 +149,5 @@ void ip_vs_zero_estimator(struct ip_vs_s
struct ip_vs_estimator *est = &stats->est;
/* set counters zero, caller must hold the stats->lock lock */
- est->last_conns = 0;
- est->last_inpkts = 0;
- est->last_outpkts = 0;
- est->last_inbytes = 0;
- est->last_outbytes = 0;
- est->cps = 0;
- est->inpps = 0;
- est->outpps = 0;
- est->inbps = 0;
- est->outbps = 0;
+ memset(est, 0, (char *)&est->list - (char *)est);
}
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