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Date: Fri, 10 Jan 2014 17:57:03 -0500
From: Rik van Riel <riel@redhat.com>
MIME-Version: 1.0
Subject: Re: [patch 8/9] lib: radix_tree: tree node interface
References: <1389377443-11755-1-git-send-email-hannes@cmpxchg.org> <1389377443-11755-9-git-send-email-hannes@cmpxchg.org>
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To: Johannes Weiner <hannes@cmpxchg.org>, Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>, Andrea Arcangeli <aarcange@redhat.com>, Bob Liu <bob.liu@oracle.com>, Christoph Hellwig <hch@infradead.org>, Dave Chinner <david@fromorbit.com>, Greg Thelen <gthelen@google.com>, Hugh Dickins <hughd@google.com>, Jan Kara <jack@suse.cz>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Luigi Semenzato <semenzato@google.com>, Mel Gorman <mgorman@suse.de>, Metin Doslu <metin@citusdata.com>, Michel Lespinasse <walken@google.com>, Minchan Kim <minchan.kim@gmail.com>, Ozgun Erdogan <ozgun@citusdata.com>, Peter Zijlstra <peterz@infradead.org>, Roman Gushchin <klamm@yandex-team.ru>, Ryan Mallon <rmallon@gmail.com>, Tejun Heo <tj@kernel.org>, Vlastimil Babka <vbabka@suse.cz>, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org

On 01/10/2014 01:10 PM, Johannes Weiner wrote:
> Make struct radix_tree_node part of the public interface and provide
> API functions to create, look up, and delete whole nodes.  Refactor
> the existing insert, look up, delete functions on top of these new
> node primitives.
> 
> This will allow the VM to track and garbage collect page cache radix
> tree nodes.
> 
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Reviewed-by: Rik van Riel <riel@redhat.com>


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