On Tue, 20 Nov 2007, Mathieu Desnoyers wrote:

> > Index: linux-2.6/fs/nfs/iostat.h
> > ===================================================================
> > --- linux-2.6.orig/fs/nfs/iostat.h  2007-11-15 21:17:24.391404458 -0800
> > +++ linux-2.6/fs/nfs/iostat.h       2007-11-15 21:25:33.167654066 -0800
> > @@ -123,7 +123,7 @@ static inline void nfs_inc_server_stats(
> >     int cpu;
> >  
> >     cpu = get_cpu();
> > -   iostats = per_cpu_ptr(server->io_stats, cpu);
> > +   iostats = CPU_PTR(server->io_stats, cpu);
> >     iostats->events[stat] ++;
> 
> Is there a way to change this into a CPU_ADD ?

Yes I must have missed that.

Could be

CPU_INC(server->io_stats->events[stat]);

> 
> >     put_cpu_no_resched();
> 
> Why put_cpu_no_resched here ?

We do not want to reschedule here? We may have already disabled interrupts 
or some such thing.
-
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