linux-kernel - Re: [PATCH] Physical Memory Management [0/1]

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Message-Id: <1242385414.26820.55.camel@twins>
Date:	Fri, 15 May 2009 13:03:34 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Michał Nazarewicz <m.nazarewicz@...sung.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, m.szyprowski@...sung.com,
	kyungmin.park@...sung.com, linux-mm@...ck.org
Subject: Re: [PATCH] Physical Memory Management [0/1]

On Fri, 2009-05-15 at 12:47 +0200, Michał Nazarewicz wrote:
> >> Correct me if I'm wrong, but if I understand correctly, currently only
> >> one size of huge page may be defined, even if underlaying architecture
> 
> On Fri, 15 May 2009 12:18:11 +0200, Andi Kleen wrote:
> > That's not correct, support for multiple huge page sizes was recently
> > added. The interface is a bit clumpsy admittedly, but it's there.
> 
> I'll have to look into that further then.  Having said that, I cannot
> create a huge page SysV shared memory segment with pages of specified
> size, can I?

Well, hugetlbfs is a fs, so you can simply create a file on there and
map that shared -- much saner interface than sysvshm if you ask me.

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