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Date: Mon, 19 May 2014 14:12:23 -0400 From: Rik van Riel <riel@...hat.com> To: Jianyu Zhan <nasa4836@...il.com>, akpm@...ux-foundation.org, hannes@...xchg.org, shli@...nel.org, minchan@...nel.org, mgorman@...e.de, cmetcalf@...era.com, aquini@...hat.com, mhocko@...e.cz, vdavydov@...allels.com, glommer@...nvz.org, dchinner@...hat.com CC: linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [PATCH] mm/vmscan.c: use DIV_ROUND_UP for calculation of zone's balance_gap and correct comments. On 05/19/2014 12:08 AM, Jianyu Zhan wrote: > Currently, we use (zone->managed_pages + KSWAPD_ZONE_BALANCE_GAP_RATIO-1) / > KSWAPD_ZONE_BALANCE_GAP_RATIO to avoid a zero gap value. It's better to > use DIV_ROUND_UP macro for neater code and clear meaning. > > Besides, the gap value is calculated against the per-zone "managed pages", > not "present pages". This patch also corrects the comment and do some > rephrasing. > > Signed-off-by: Jianyu Zhan <nasa4836@...il.com> Acked-by: Rik van Riel <riel@...hat.com> -- All rights reversed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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