linux-kernel - Re: [RFC][PATCH 26/25] mm, arch: Convert ia64, arm, sh to generic tlb

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Date:	Wed, 26 Jan 2011 20:30:18 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	Avi Kivity <avi@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rik van Riel <riel@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	akpm@...ux-foundation.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [RFC][PATCH 26/25] mm, arch: Convert ia64, arm, sh to generic
 tlb

On Wed, 2011-01-26 at 20:19 +0100, Sam Ravnborg wrote:
> 
> /* Users of the generic TLB shootdown code must declare this storage space. */
> DECLARE_PER_CPU(struct mmu_gather, mmu_gathers);
> 
> If I understand this correct then this should read:
> 
> /*
>  * Users of the generic TLB shootdown
>  * must define mmu_gathers like this:
>  * DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
>  */
> 
> The main difference is "declare" => "define".
> 
> If you already updated this in you serie then please ignore this mail. 

This series rewrites mmu_gather to remove this per-cpu data :-), see
patch #10 which removes the DEFINE_PER_CPU()s after all users are dead.

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