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Date: Tue, 11 Nov 2014 16:01:00 -0500 (EST)
From: David Airlie <airlied@redhat.com>
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In-Reply-To: <20141111095903.GH10501@worktop.programming.kicks-ass.net>
References: <1415644096-3513-1-git-send-email-j.glisse@gmail.com> <CA+55aFwHd4QYopHvd=H6hxoQeqDV3HT6=436LGU-FRb5A0p7Vg@mail.gmail.com> <20141110205814.GA4186@gmail.com> <CA+55aFwwKV_D5oWT6a97a70G7OnvsPD_j9LsuR+_e4MEdCOO9A@mail.gmail.com> <20141110225036.GB4186@gmail.com> <CA+55aFyfgj5ntoXEJeTZyGdOZ9_A_TK0fwt1px_FUhemXGgr0Q@mail.gmail.com> <20141111024531.GA2503@gmail.com> <20141111095903.GH10501@worktop.programming.kicks-ass.net>
Subject: Re: [PATCH 3/5] lib: lockless generic and arch independent page
 table (gpt) v2.
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To: Peter Zijlstra <peterz@infradead.org>
Cc: Jerome Glisse <j.glisse@gmail.com>, Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, Joerg Roedel <joro@8bytes.org>, Mel Gorman <mgorman@suse.de>, "H. Peter Anvin" <hpa@zytor.com>, Andrea Arcangeli <aarcange@redhat.com>, Johannes Weiner <jweiner@redhat.com>, Larry Woodman <lwoodman@redhat.com>, Rik van Riel <riel@redhat.com>, Brendan Conoboy <blc@redhat.com>, Joe Donohue <jdonohue@redhat.com>, Duncan Poole <dpoole@nvidia.com>, Sherry Cheung <SCheung@nvidia.com>, Subhash Gutti <sgutti@nvidia.com>, John Hubbard <jhubbard@nvidia.com>, Mark Hairgrove <mhairgrove@nvidia.com>, Lucien Dunning <ldunning@nvidia.com>, Cameron Buschardt <cabuschardt@nvidia.com>, Arvind Gopalakrishnan <arvindg@nvidia.com>, Shachar Raindel <raindel@mellanox.com>, Liran Liss <liranl@mellanox.com>, Roland Dreier <roland@purestorage.com>, Ben Sander <ben.sander@amd.com>, Greg Stoner <Greg.Stoner@amd.com>, John Bridgman <John.Bridgman@amd.com>, Michael Mantor <Michael.Mantor@amd.com>, Paul Blinzer <Paul.Blinzer@amd.com>, Laurent Morichetti <Laurent.Morichetti@amd.com>, Alexander Deucher <Alexander.Deucher@amd.com>, Oded Gabbay <Oded.Gabbay@amd.com>, =?utf-8?B?SsOpcsO0bWU=?= Glisse <jglisse@redhat.com>


> On Mon, Nov 10, 2014 at 09:45:33PM -0500, Jerome Glisse wrote:
> > All the complexity arise from two things, first the need to keep ad-hoc
> > link btw directory level to facilitate iteration over range.
> 
> btw means "by the way" not "between", use a dictionary some time.
> 

Thanks for the in-depth review Peter.

Dave.

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