linux-kernel - Re: [PATCH v3 2/2] perf/bench/numa: Handle discontiguous/sparse numa nodes

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Date:   Tue, 14 Nov 2017 18:16:02 +0530
From:   Satheesh Rajendran <sathnaga@...ux.vnet.ibm.com>
To:     "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:     acme@...nel.org, mingo@...nel.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, srikar@...ux.vnet.ibm.com,
        bala24@...ux.vnet.ibm.com
Subject: Re: [PATCH v3 2/2] perf/bench/numa: Handle discontiguous/sparse
 numa nodes

Hi Naveen,


On Tue, 2017-10-31 at 20:46 +0530, Naveen N. Rao wrote:
> 
> >  	}
> >  	BUG_ON(nr_min > nr_max);
> > -
> Looks like an un-necessary change there.
> 
> - Naveen
> 
I had hit with this compilation error, so had to move the
initialization above.
Please advice. Thanks.

  CC       bench/numa.o
bench/numa.c: In function ‘calc_convergence’:
bench/numa.c:1035:3: error: ISO C90 forbids mixed declarations and code
[-Werror=declaration-after-statement]
   int processes = count_node_processes(node);
   ^
cc1: all warnings being treated as errors
mv: cannot stat ‘bench/.numa.o.tmp’: No such file or directory
make[4]: *** [bench/numa.o] Error 1
make[3]: *** [bench] Error 2
make[2]: *** [perf-in.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

Regards,
-Satheesh.
> > 
> >  	BUG_ON(sum > g->p.nr_tasks);
> > 
> >  	if (0 && (sum < g->p.nr_tasks))
@@ -1027,8 +1029,9 @@ static void calc_convergence(double