Re: [PATCH 2/4] perf, kmem: Utilize the new generic cpunode_map

From: Jiri Olsa
Date: Sun Apr 06 2014 - 08:22:02 EST


On Mon, Mar 31, 2014 at 10:42:30PM -0400, Don Zickus wrote:

SNIP

> > > -#define PATH_SYS_NODE "/sys/devices/system/node"
> > > -
> > > -static int init_cpunode_map(void)
> > > -{
> > > - FILE *fp;
> > > - int i, err = -1;
> > > -
> > > - fp = fopen("/sys/devices/system/cpu/kernel_max", "r");
> >
> > so the factored code from previous patches now reads
> > the max_cpu_num value from:
> > /sys/devices/system/cpu/possible
> >
> > is this intentional?
>
> Yeah, I was trying to save bits. No need to allocate for 5100 cpus when
> only 128 are used.
>
> >
> > I think we want to have separate patches for code changes
> > and for changing the file with some comment.
>
> So you want me to split the previous patch into two. One for code
> movement, the other for the path change?

I think thats the proper way.. single logic change for patch

thanks,
jirka
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