[RFC] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags

Wang, Yalin Yalin.Wang at sonymobile.com
Fri Dec 5 02:22:33 PST 2014


> -----Original Message-----
> From: Konstantin Khlebnikov [mailto:koct9i at gmail.com]
> Sent: Friday, December 05, 2014 5:21 PM
> To: Wang, Yalin
> Cc: linux-kernel at vger.kernel.org; linux-mm at kvack.org; linux-arm-
> kernel at lists.infradead.org; akpm at linux-foundation.org; n-
> horiguchi at ah.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 at sonymobile.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.


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