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Date: Tue, 4 Jan 2005 14:16:25 +1100
From: Anton Blanchard <anton@samba.org>
To: Chris Friesen <cfriesen@nortelnetworks.com>
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Cc: linuxppc-dev@ozlabs.org
Subject: Re: dcbz not used on ppc64?
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> Hmm.  As of 2.6.9 at least, clear_page() is only ever called by 
> clear_user_page(), which in turn is only ever called by 
> drivers/media/video/video-buf.c.  I'm not using that driver, which 
> explains why the instruction didn't show up when I disassembled the kernel.

Dont forget mm/memory.c:clear_user_highpage -> clear_user_page. 

Anton