linux-kernel - Re: [RFC/PATCH] mm: Pass virtual address to [__]p{te,ud,md}_free

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Message-Id: <1247708177.9851.4.camel@concordia>
Date:	Thu, 16 Jul 2009 11:36:17 +1000
From:	Michael Ellerman <michael@...erman.id.au>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Linux Memory Management <linux-mm@...ck.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	Nick Piggin <npiggin@...e.de>,
	Hugh Dickins <hugh@...cali.co.uk>
Subject: Re: [RFC/PATCH] mm: Pass virtual address to
 [__]p{te,ud,md}_free_tlb()

On Wed, 2009-07-15 at 17:49 +1000, Benjamin Herrenschmidt wrote:
> Upcoming paches to support the new 64-bit "BookE" powerpc architecture
> will need to have the virtual address corresponding to PTE page when
> freeing it, due to the way the HW table walker works.

> I haven't had a chance to test or even build on most architectures, the
> patch is reasonably trivial but I may have screwed up regardless, I
> appologize in advance, let me know if something is wrong.

Builds for the important architectures, powerpc, ia64, arm, sparc,
sparc64, oh and x86:

http://kisskb.ellerman.id.au/kisskb/head/1976/

(based on your test branch 34f25476)

cheers

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