linux-kernel - Re: [PATCH 1/6] rbtree: rb

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Date:	Tue, 24 Jul 2012 14:50:08 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Michel Lespinasse <walken@...gle.com>
CC:	peterz@...radead.org, daniel.santos@...ox.com, aarcange@...hat.com,
	dwmw2@...radead.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] rbtree: rb_erase updates and comments

On 07/20/2012 08:31 AM, Michel Lespinasse wrote:
> Minor updates to the rb_erase() function:
> - Reorder code to put simplest / common case (no more than 1 child) first.
> - Fetch the parent first, since it ends up being required in all 3 cases.
> - Add a few comments to illustrate case 2 (node to remove has 2 childs,
>    but one of them is the successor) and case 3 (node to remove has 2 childs,
>    successor is a left-descendant of the right child).
>
> Signed-off-by: Michel Lespinasse<walken@...gle.com>

Acked-by: Rik van Riel <riel@...hat.com>

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