From: Andi Kleen <ak@suse.de>
To: Andrew Morton <akpm@osdl.org>
Subject: Re: [RFC] [PATCH] cache pollution aware __copy_from_user_ll()
Date: Fri, 2 Sep 2005 04:17:10 +0200
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On Friday 02 September 2005 04:08, Andrew Morton wrote:

> I suppose I'll queue it up in -mm for a while, although I'm a bit dubious
> about the whole idea...  We'll gain some and we'll lose some - how do we
> know it's a net gain?

I suspect it'll gain more than it loses. The only case where it might 
not gain is immediately someone reading the data from the page cache again
after the write. But I suppose that's far less frequent than writing the data.

-Andi
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