linux-kernel - Re: [PATCH 4/4] mm: numa: Do not mark PTEs pte

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Message-ID: <CA+55aFxhbiMec+bywcvUVO17UU9UC97PLSqqnrv10dtSRzmhAg@mail.gmail.com>
Date:	Thu, 2 Oct 2014 12:32:40 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Rik van Riel <riel@...hat.com>
Cc:	"Kirill A. Shutemov" <kirill@...temov.name>,
	Sasha Levin <sasha.levin@...cle.com>,
	Mel Gorman <mgorman@...e.de>, Dave Jones <davej@...hat.com>,
	Hugh Dickins <hughd@...gle.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Aneesh Kumar <aneesh.kumar@...ux.vnet.ibm.com>,
	Michel Lespinasse <walken@...gle.com>,
	Kirill A Shutemov <kirill.shutemov@...ux.intel.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] mm: numa: Do not mark PTEs pte_numa when splitting
 huge pages

On Thu, Oct 2, 2014 at 12:28 PM, Rik van Riel <riel@...hat.com> wrote:
>
> They are more useful as sanity tests than anything else.

.. and that's exactly what I'd like to hear about the protnone patch.
Did the patch screw something up so that it doesn't count the faults
properly?

              Linus
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