Re: [patch 4/4] memcg: use native word page statistics counters

From: KAMEZAWA Hiroyuki
Date: Mon Nov 15 2010 - 22:49:52 EST


On Sun, 7 Nov 2010 23:14:39 +0100
Johannes Weiner <hannes@xxxxxxxxxxx> wrote:

> The statistic counters are in units of pages, there is no reason to
> make them 64-bit wide on 32-bit machines.
>
> Make them native words. Since they are signed, this leaves 31 bit on
> 32-bit machines, which can represent roughly 8TB assuming a page size
> of 4k.
>
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

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