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RE: flush_anon_page for MIPS

To: "Ralf Baechle" <ralf@linux-mips.org>
Subject: RE: flush_anon_page for MIPS
From: "Ravi Pratap" <Ravi.Pratap@hillcrestlabs.com>
Date: Mon, 26 Mar 2007 18:38:42 -0400
Cc: "David Daney" <ddaney@avtrex.com>, "Atsushi Nemoto" <anemo@mba.ocn.ne.jp>, <miklos@szeredi.hu>, <linux-mips@linux-mips.org>
In-reply-to: <20070326140542.GA14354@linux-mips.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
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Thread-index: Acdvr+MldaVjQjb1Q5S/w84d7Qm9/QARk21g
Thread-topic: flush_anon_page for MIPS
> From: Ralf Baechle [mailto:ralf@linux-mips.org] 
> Sent: Monday, March 26, 2007 10:06 AM
> To: Ravi Pratap
> Cc: David Daney; Atsushi Nemoto; miklos@szeredi.hu; 
> linux-mips@linux-mips.org
> Subject: Re: flush_anon_page for MIPS
> 
> On Mon, Mar 26, 2007 at 09:33:10AM -0400, Ravi Pratap wrote:
> 
> > 
> > Yes, but isn't it a lot of work considering the lack of a 
> > flush_anon_page in 2.6.15?
> 
> David wrote about forward porting the patches in your vendor 
> kernel to a more modern kernel.  That would require some work but the
> flush_anon_page() thing would be the least of your worries.
> 
> Otherwise, you'd need to backport the about following 
> changesets into your kernel to get flush_anon_page:
> 
> 03beb07664d768db97bf454ae5c9581cd4737bb4
> df7c814ea6385fea8ccf54c80ec78326f78b743e
> f036773e8760a79ad9fdeea6665f86d3493d40d1
> 4c40981a5c0fe1ee5c755a55a4a8e5e3527f0bca
> 

Thanks for the info. I think I'm going to go with backporting these
changesets for now while still talking to the vendors about upgrading
their kernel. The problem is that these guys are just notoriously slow
and we have work to get done :-)


Ravi.

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