linux-kernel - Re: [RFC] [PATCH 2/4] dio: add page locking for direct I/O

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Message-ID: <x4939uduzan.fsf@segfault.boston.devel.redhat.com>
Date:	Tue, 17 Aug 2010 09:46:56 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:	Christoph Lameter <cl@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	Wu Fengguang <fengguang.wu@...el.com>,
	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: [RFC] [PATCH 2/4] dio: add page locking for direct I/O

Naoya Horiguchi <n-horiguchi@...jp.nec.com> writes:

> BTW, from the discussion with Christoph I noticed my misunderstanding
> about the necessity of additional page locking. It would seem that
> without page locking there is no danger of racing between direct I/O and
> page migration. So I retract this additional locking patch-set.

OK, great!  ;-)

Cheers,
Jeff
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