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Re: [PATCH] fix cache coherency issues

Subject: Re: [PATCH] fix cache coherency issues
From: Atsushi Nemoto <>
Date: Fri, 25 Aug 2006 00:12:21 +0900 (JST)
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
On Thu, 24 Aug 2006 13:12:05 +0100, Ralf Baechle <> wrote:
> I figured it was worth a try.  It means the process will start running with
> a hot copy of the COW page instead of a cold copy and I can use hit
> invalidates instead of hit wbinv on the kernel address of the to page.
> Lmbenching now, stay tuned ...

Hmm, if we could invalidate _before_ copy_page() and writeback
(without invalidate) _after_ the copy, it might be worth.

Atsushi Nemoto

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