linux-kernel - Re: [PATCH RFC/RFT v2 3/8] s390: move cacheinfo sysfs to generic cacheinfo infrastructure

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Message-ID: <20140210115923.GF19013@osiris>
Date:	Mon, 10 Feb 2014 12:59:23 +0100
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Sudeep Holla <Sudeep.Holla@....com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	"linux390@...ibm.com" <linux390@...ibm.com>,
	"linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>
Subject: Re: [PATCH RFC/RFT v2 3/8] s390: move cacheinfo sysfs to generic
 cacheinfo infrastructure

On Mon, Feb 10, 2014 at 11:34:55AM +0000, Sudeep Holla wrote:
> On 10/02/14 09:50, Heiko Carstens wrote:
> > On Fri, Feb 07, 2014 at 04:49:18PM +0000, Sudeep Holla wrote:
> >> -		show_cacheinfo(m);
> >>  	}
> >>  	get_online_cpus();
> >>  	if (cpu_online(n)) {
> > 
> > You can't remove that. It's a user space visible change.
> > 
> Correct, I wanted to add show_cacheinfo back as its user ABI already, missed it.
> 
> Is it ok if I use cpu0 cacheinfo or to be safer as cpu0 can be offline, use
> the cacheinfo of the cpu executing this ?

Any online cpu would do, as the information is completely symmetrical.

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