linux-kernel - Re: [PATCH 2/7] Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions

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Message-ID: <alpine.DEB.1.00.0909181308110.27556@chino.kir.corp.google.com>
Date:	Fri, 18 Sep 2009 13:08:22 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Eric B Munson <ebmunson@...ibm.com>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	akpm@...ux-foundation.org, rdunlap@...otime.net,
	michael@...erman.id.au, ralf@...ux-mips.org, wli@...omorphy.com,
	mel@....ul.ie, dhowells@...hat.com, arnd@...db.de,
	fengguang.wu@...el.com, shuber2@...il.com,
	hugh.dickins@...cali.co.uk, zohar@...ibm.com, hugh@...itas.com,
	mtk.manpages@...il.com, chris@...kel.net,
	linux-man@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-alpha@...r.kernel.org, linux-mips@...ux-mips.org,
	linux-parisc@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 2/7] Add MAP_HUGETLB for mmaping pseudo-anonymous huge
 page regions

On Fri, 18 Sep 2009, Eric B Munson wrote:

> This patch adds a flag for mmap that will be used to request a huge
> page region that will look like anonymous memory to user space.  This
> is accomplished by using a file on the internal vfsmount.  MAP_HUGETLB
> is a modifier of MAP_ANONYMOUS and so must be specified with it.  The
> region will behave the same as a MAP_ANONYMOUS region using small pages.
> 
> Signed-off-by: Eric B Munson <ebmunson@...ibm.com>

Acked-by: David Rientjes <rientjes@...gle.com>
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