From: Andrea Arcangeli <andrea@suse.de>
To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
Cc: linux-kernel@vger.kernel.org, Steven.Hand@cl.cam.ac.uk,
Christian.Limpach@cl.cam.ac.uk, Keir.Fraser@cl.cam.ac.uk,
akpm@osdl.org
Subject: Re: [1/7] Xen VMM #3: add ptep_establish_new to make va available
Date: Tue, 30 Nov 2004 03:21:05 +0100 [thread overview]
Message-ID: <20041130022105.GL4365@dualathlon.random> (raw)
In-Reply-To: <E1CYxP0-0005Hy-00@mta1.cl.cam.ac.uk>
On Tue, Nov 30, 2004 at 02:06:02AM +0000, Ian Pratt wrote:
>
> This patch adds 'ptep_establish_new', in keeping with the
> existing 'ptep_establish', but for use where a mapping is being
> established where there was previously none present. This
> function is useful (rather than just using set_pte) because
> having the virtual address available enables a very important
> optimisation for arch-xen. We introduce
> HAVE_ARCH_PTEP_ESTABLISH_NEW and define a generic implementation
> in asm-generic/pgtable.h, following the pattern of the existing
> ptep_establish.
this certainly is correct.
next prev parent reply other threads:[~2004-11-30 2:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-30 2:06 [1/7] Xen VMM #3: add ptep_establish_new to make va available Ian Pratt
2004-11-30 2:21 ` Andrea Arcangeli [this message]
2004-11-30 22:49 ` Benjamin Herrenschmidt
2004-11-30 23:05 ` Ian Pratt
2004-11-30 23:27 ` Benjamin Herrenschmidt
2004-12-01 4:01 ` David S. Miller
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