linux-kernel - Re: [PATCH 3/3] mm, vmstat: remove zone and node double accounting by approximating retries -fix

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Message-ID: <20160718235919.GC9161@bbox>
Date:	Tue, 19 Jul 2016 08:59:19 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Mel Gorman <mgorman@...hsingularity.net>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Vlastimil Babka <vbabka@...e.cz>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] mm, vmstat: remove zone and node double accounting
 by approximating retries -fix

On Mon, Jul 18, 2016 at 03:50:26PM +0100, Mel Gorman wrote:
> As pointed out by Vlastimil, the atomic_add() functions are already assumed
> to be able to handle negative numbers. The atomic_sub handling was wrong
> anyway but this patch fixes it unconditionally.
> 
> This is a fix to the mmotm patch
> mm-vmstat-remove-zone-and-node-double-accounting-by-approximating-retries.patch
> 
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
Acked-by: Minchan Kim <minchan@...nel.org>