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Date: Tue, 16 Nov 2010 12:44:14 +0900 From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> To: Johannes Weiner <hannes@...xchg.org> Cc: Greg Thelen <gthelen@...gle.com>, Minchan Kim <minchan.kim@...il.com>, Andrew Morton <akpm@...ux-foundation.org>, Dave Young <hidave.darkstar@...il.com>, Andrea Righi <arighi@...eler.com>, Daisuke Nishimura <nishimura@....nes.nec.co.jp>, Balbir Singh <balbir@...ux.vnet.ibm.com>, Wu Fengguang <fengguang.wu@...el.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: [patch 4/4] memcg: use native word page statistics counters On Sun, 7 Nov 2010 23:14:39 +0100 Johannes Weiner <hannes@...xchg.org> 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@...xchg.org> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> -- 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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