linux-kernel - Re: [PATCH] x86, PAT: honor CONFIG_STRICT

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Message-ID: <20110723123950.GA30098@tiehlicka.suse.cz>
Date:	Sat, 23 Jul 2011 14:39:51 +0200
From:	Michal Hocko <mhocko@...e.cz>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Venkatesh Pallipadi <venki@...gle.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH] x86, PAT: honor CONFIG_STRICT_DEVMEM if pat is disable]

On Fri 22-07-11 11:30:55, H. Peter Anvin wrote:
> On 07/22/2011 10:31 AM, Michal Hocko wrote:
> > 
> > Thanks for the clarification!
> > What do you think about fixing the nopat with STRICT_DEVMEM like the
> > patch does?
> > 
> 
> From what I gather from your patch, the issue is that STRICT_DEVMEM
> isn't being honored with nopat?

Yes.

> This is an obvious bug and should be fixed.

OK, thanks for confirmation. Should I just repost the patch without the
question about PAT vs. /dev/[k]mem or you will just pick it up from
there? Or would you preffer a different fix?

Thanks
-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic
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