linux-kernel - Re: [PATCH 04/25] sparc: Preemptible mmu

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Date:	Tue, 25 Jan 2011 12:30:05 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	a.p.zijlstra@...llo.nl
Cc:	aarcange@...hat.com, avi@...hat.com, tglx@...utronix.de,
	riel@...hat.com, mingo@...e.hu, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org, linux-mm@...ck.org,
	benh@...nel.crashing.org, hugh.dickins@...cali.co.uk,
	mel@....ul.ie, npiggin@...nel.dk, paulmck@...ux.vnet.ibm.com,
	yanmin_zhang@...ux.intel.com
Subject: Re: [PATCH 04/25] sparc: Preemptible mmu_gather

From: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Date: Tue, 25 Jan 2011 18:31:15 +0100

> Rework the sparc mmu_gather usage to conform to the new world order :-)
> 
> Sparc mmu_gather does two things:
>  - tracks vaddrs to unhash
>  - tracks pages to free
> 
> Split these two things like powerpc has done and keep the vaddrs
> in per-cpu data structures and flush them on context switch.
> 
> The remaining bits can then use the generic mmu_gather.
> 
> Cc: David Miller <davem@...emloft.net>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>

Acked-by: David S. Miller <davem@...emloft.net>
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