linux-kernel - RE: [RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags

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Message-ID: <35FD53F367049845BC99AC72306C23D103E688B313F2@CNBJMBX05.corpusers.net>
Date:	Fri, 5 Dec 2014 18:22:33 +0800
From:	"Wang, Yalin" <Yalin.Wang@...ymobile.com>
To:	'Konstantin Khlebnikov' <koct9i@...il.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"n-horiguchi@...jp.nec.com" <n-horiguchi@...jp.nec.com>
Subject: RE: [RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags

> -----Original Message-----
> From: Konstantin Khlebnikov [mailto:koct9i@...il.com]
> Sent: Friday, December 05, 2014 5:21 PM
> To: Wang, Yalin
> Cc: linux-kernel@...r.kernel.org; linux-mm@...ck.org; linux-arm-
> kernel@...ts.infradead.org; akpm@...ux-foundation.org; n-
> horiguchi@...jp.nec.com
> Subject: Re: [RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags
> 
> On Fri, Dec 5, 2014 at 11:57 AM, Wang, Yalin <Yalin.Wang@...ymobile.com>
> wrote:
> > This patch add KPF_ZERO_PAGE flag for zero_page, so that userspace
> > process can notice zero_page from /proc/kpageflags, and then do memory
> > analysis more accurately.
> 
> It would be nice to mark also huge_zero_page. See (completely
> untested) patch in attachment.
> 
Got it,
Thanks for your patch.