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[Xen-devel] Re: [patch 11/21] Xen-paravirt: Add apply_to_page_range() which applies a function to a pte range.
- To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
- Date: Thu, 15 Feb 2007 23:23:35 -0800
- Cc: Zachary Amsden <zach@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Chris Wright <chrisw@xxxxxxxxxxxx>, Andi Kleen <ak@xxxxxx>, Christoph Lameter <clameter@xxxxxxx>, Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
- Delivery-date: Thu, 15 Feb 2007 23:22:50 -0800
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Andrew Morton wrote:
> I guess your pte-at-a-time walker could be quite simply implemented underneath
> the smaps pmd-at-a-time walker.
>
Yes, converting should be pretty simple. There aren't many users in
Xen, but they are moderately performance critical (fork, exec and exit),
so using batching would be good.
J
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