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

To: Eric B Munson <ebmunson@us.ibm.com>
Subject: Re: [PATCH 2/7] Add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions
From: David Rientjes <rientjes@google.com>
Date: Fri, 18 Sep 2009 13:08:22 -0700 (PDT)
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, rdunlap@xenotime.net, michael@ellerman.id.au, ralf@linux-mips.org, wli@holomorphy.com, mel@csn.ul.ie, dhowells@redhat.com, arnd@arndb.de, fengguang.wu@intel.com, shuber2@gmail.com, hugh.dickins@tiscali.co.uk, zohar@us.ibm.com, hugh@veritas.com, mtk.manpages@gmail.com, chris@zankel.net, linux-man@vger.kernel.org, linux-doc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linux-arch@vger.kernel.org
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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@us.ibm.com>

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

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