linux-kernel - Re: [PATCH 2/4] perf, kmem: Utilize the new generic cpunode

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Message-ID: <20140406122126.GE1164@krava.brq.redhat.com>
Date:	Sun, 6 Apr 2014 14:21:26 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	acme@...stprotocols.net, LKML <linux-kernel@...r.kernel.org>,
	jmario@...hat.com, fowles@...each.com,
	Li Zefan <lizf@...fujitsu.com>
Subject: Re: [PATCH 2/4] perf, kmem: Utilize the new generic cpunode_map

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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