linux-kernel - Re: [PATCH v3] x86: UV SGI, Don't track GRU space in PAT

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Message-ID: <20091123182520.GA24482@elte.hu>
Date:	Mon, 23 Nov 2009 19:25:20 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jack Steiner <steiner@....com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] x86: UV SGI, Don't track GRU space in PAT


* Jack Steiner <steiner@....com> wrote:

> GRU space is always mapped as WB in the page table. There is
> no need to track the mappings in the PAT. This also eliminates
> the "freeing invalid memtype" messages when the GRU space is unmapped.
> 
> Signed-off-by: Jack Steiner <steiner@....com>
> 
> ---
> Version 2 with changes suggested by Ingo (at least I think I understood what
> he wanted).
> 
> Version 3 with changes suggested by Peter to make the new function
> a member of the x86_platform structure.

thanks, it looks much cleaner now. I've applied it to tip:x86/mm.

	Ingo
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