linux-kernel - Re: [patch 2/2] x86,pat Convert memtype_lock into an rw

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Date:	Wed, 17 Mar 2010 12:51:14 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Suresh Siddha <suresh.b.siddha@...el.com>,
	"holt@....com" <holt@....com>
CC:	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...il.com>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>
Subject: Re: [patch 2/2] x86,pat Convert memtype_lock into an rw_lock.

Well, as you know :) tglx and I are on the road ... I'll try to get to it on Friday before I take off again.

"Suresh Siddha" <suresh.b.siddha@...el.com> wrote:

>On Mon, 2010-03-15 at 06:21 -0700, holt@....com wrote:
>> Convert the memtype_lock from a spin_lock to an rw_lock.  The first
>> version of my patch had this and it did improve performance for fault
>> in times.  The atomic page flags patch (first in the series) improves
>> things much greater for ram pages.  This patch is to help the other pages.
>> 
>
>Acked-by: Suresh Siddha <suresh.b.siddha@...el.com>
>
>X86 folks, can you please queue  both these patches if you don't have
>any objections.
>
>thanks,
>suresh
>

--
Sent from my mobile phone, pardon any lack of formatting.