linux-kernel - Re: [PATCH 1/4] mm, page_alloc: add likely macro to help compiler optimization

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Date:	Fri, 2 Aug 2013 15:26:50 -0400
From:	Johannes Weiner <hannes@...xchg.org>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Joonsoo Kim <js1304@...il.com>,
	Minchan Kim <minchan@...nel.org>, Mel Gorman <mgorman@...e.de>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH 1/4] mm, page_alloc: add likely macro to help compiler
 optimization

On Fri, Aug 02, 2013 at 11:07:56AM +0900, Joonsoo Kim wrote:
> We rarely allocate a page with ALLOC_NO_WATERMARKS and it is used
> in slow path. For making fast path more faster, add likely macro to
> help compiler optimization.
> 
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

Acked-by: Johannes Weiner <hannes@...xchg.org>
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