linux-kernel - Re: [PATCH 03/10] mm: Convert p[te|md]_numa users to p[te|md]_protnone

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Message-ID: <1417551115.27448.7.camel@kernel.crashing.org>
Date:	Wed, 03 Dec 2014 07:11:55 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	Mel Gorman <mgorman@...e.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux-MM <linux-mm@...ck.org>,
	LinuxPPC-dev <linuxppc-dev@...ts.ozlabs.org>,
	Hugh Dickins <hughd@...gle.com>, Dave Jones <davej@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Ingo Molnar <mingo@...hat.com>,
	Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Paul Mackerras <paulus@...ba.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 03/10] mm: Convert p[te|md]_numa users to
 p[te|md]_protnone_numa

On Tue, 2014-12-02 at 12:57 +0530, Aneesh Kumar K.V wrote:
> Now, hash_preload can possibly insert an hpte in hash page table even if
> the access is not allowed by the pte permissions. But i guess even that
> is ok. because we will fault again, end-up calling hash_page_mm where we
> handle that part correctly.

I think we need a test case...

Cheers,
Ben.


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