linux-kernel - Re: [PATCH 1/2] Subject: [PATCH] Report the pagesize backing a VMA in /proc/pid/smaps

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Date:	Fri, 17 Oct 2008 01:25:49 +0900
From:	"KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com>
To:	"Mel Gorman" <mel@....ul.ie>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Alexey Dobriyan" <adobriyan@...il.com>,
	"Dave Hansen" <dave@...ux.vnet.ibm.com>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] Subject: [PATCH] Report the pagesize backing a VMA in /proc/pid/smaps

Hi

> It is useful to verify a hugepage-aware application is using the expected
> pagesizes for its memory regions. This patch creates an entry called
> KernelPageSize in /proc/pid/smaps that is the size of page used by the
> kernel to back a VMA. The entry is not called PageSize as it is possible
> the MMU uses a different size. This extension should not break any sensible
> parser that skips lines containing unrecognised information.
>
> Signed-off-by: Mel Gorman <mel@....ul.ie>

ack.
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