linux-kernel - Re: [PATCH 25/34] mm, vmscan: avoid passing in classzone_idx unnecessarily to compaction

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Message-ID: <20160712180141.GA7821@cmpxchg.org>
Date:	Tue, 12 Jul 2016 14:01:41 -0400
From:	Johannes Weiner <hannes@...xchg.org>
To:	Mel Gorman <mgorman@...hsingularity.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux-MM <linux-mm@...ck.org>, Rik van Riel <riel@...riel.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Minchan Kim <minchan@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 25/34] mm, vmscan: avoid passing in classzone_idx
 unnecessarily to compaction_ready

On Fri, Jul 08, 2016 at 10:35:01AM +0100, Mel Gorman wrote:
> The scan_control structure has enough information available for
> compaction_ready() to make a decision. The classzone_idx manipulations in
> shrink_zones() are no longer necessary as the highest populated zone is
> no longer used to determine if shrink_slab should be called or not.
> 
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
> Acked-by: Hillf Danton <hillf.zj@...baba-inc.com>

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