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Message-ID: <alpine.LFD.0.999.0709211153060.16478@woody.linux-foundation.org>
Date: Fri, 21 Sep 2007 11:55:19 -0700 (PDT)
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Christoph Lameter <clameter@....com>
cc: "Siddha, Suresh B" <suresh.b.siddha@...el.com>,
akpm@...ux-foundation.org, ak@...e.de,
linux-kernel@...r.kernel.org, tony.luck@...el.com,
asit.k.mallick@...el.com
Subject: Re: x86_64: potential critical issue with quicklists and page table
pages
On Fri, 21 Sep 2007, Christoph Lameter wrote:
>
> The quicklists collect pages while we gather pages for TLB flushing.
> These pages must be kept until the actual TLB flush has occurred. The
> optimization of releasing off node pages early is therefore not valid.
That should be the "mmu_gather" structure, not the quicklists.
Linus
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