Messages in this thread | | | Date | Mon, 19 May 2014 14:12:23 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH] mm/vmscan.c: use DIV_ROUND_UP for calculation of zone's balance_gap and correct comments. |
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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@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
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