linux-kernel - Re: [PATCH 09/21] powerpc: Preemptible mmu

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Message-ID: <1291088148.32570.342.camel@pasglop>
Date:	Tue, 30 Nov 2010 14:35:48 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
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,
	linux-mm@...ck.org, David Miller <davem@...emloft.net>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Mel Gorman <mel@....ul.ie>, Nick Piggin <npiggin@...nel.dk>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Yanmin Zhang <yanmin_zhang@...ux.intel.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH 09/21] powerpc: Preemptible mmu_gather


> This breaks embedded 64-bit build. Replace CONFIG_PPC64 with
> CONFIG_PPC_BOOK3S_64 to only hit server when you access the
> ppc64_tlb_batch in process.c since it doesn't exist for BOOK3E.
> 
> This patch to fold into yours fixes it for me:

With this fix and the other Kconfig fix, it seems to boot fine and no
obvious breakage doing simple things on G5 and a power6 machine.

Cheers,
Ben.

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