linux-kernel - Re: Move to unshared VMAs in NOMMU mode?

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Message-ID: <12698.1174420307@redhat.com>
Date:	Tue, 20 Mar 2007 19:51:47 +0000
From:	David Howells <dhowells@...hat.com>
To:	ebiederm@...ssion.com (Eric W. Biederman),
	Hugh Dickins <hugh@...itas.com>, bryan.wu@...log.com,
	Robin Holt <holt@....com>,
	"Kawai, Hidehiro" <hidehiro.kawai.ez@...achi.com>,
	Andrew Morton <akpm@...l.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	Pavel Machek <pavel@....cz>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	sugita <yumiko.sugita.yf@...achi.com>,
	Satoshi OSHIMA <soshima@...hat.com>, haoki@...hat.com,
	Robin Getz <rgetz@...ckfin.uclinux.org>
Subject: Re: Move to unshared VMAs in NOMMU mode? 

David Howells <dhowells@...hat.com> wrote:

> I don't quite what your limitations are

 (7) Two shared mappings on the same offset in the same file must, of
     necessity, appear at the same address.  This means you get two VMAs in the
     rbtree at the same place.

David
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