Re: [PATCH v3 9/9] memory-hotplug: allocate zone's pcp beforeonlining pages

From: KOSAKI Motohiro
Date: Fri Oct 19 2012 - 03:07:35 EST

On Fri, Oct 19, 2012 at 2:46 AM, <wency@xxxxxxxxxxxxxx> wrote:
> From: Wen Congyang <wency@xxxxxxxxxxxxxx>
> We use __free_page() to put a page to buddy system when onlining pages.
> __free_page() will store NR_FREE_PAGES in zone's pcp.vm_stat_diff, so we
> should allocate zone's pcp before onlining pages, otherwise we will lose
> some free pages.
> CC: David Rientjes <rientjes@xxxxxxxxxx>
> CC: Jiang Liu <liuj97@xxxxxxxxx>
> CC: Len Brown <len.brown@xxxxxxxxx>
> CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> CC: Paul Mackerras <paulus@xxxxxxxxx>
> CC: Christoph Lameter <cl@xxxxxxxxx>
> Cc: Minchan Kim <>
> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> CC: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> CC: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
> Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>

Looks good.

Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
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