Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752675Ab2FWJEJ (ORCPT ); Sat, 23 Jun 2012 05:04:09 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:46891 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751471Ab2FWJEF (ORCPT ); Sat, 23 Jun 2012 05:04:05 -0400 Date: Sat, 23 Jun 2012 17:03:39 +0800 From: Wanpeng Li To: Johannes Weiner Cc: linux-mm@kvack.org, Michal Hocko , Balbir Singh , KAMEZAWA Hiroyuki , Andrew Morton , Mel Gorman , Minchan Kim , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Gavin Shan Subject: Re: [PATCH 1/6] memcg: replace unsigned long by u64 to avoid overflow Message-ID: <20120623090339.GA6184@kernel> Reply-To: Wanpeng Li References: <1340432134-5178-1-git-send-email-liwp.linux@gmail.com> <20120623081514.GJ27816@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120623081514.GJ27816@cmpxchg.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 841 Lines: 23 On Sat, Jun 23, 2012 at 10:15:14AM +0200, Johannes Weiner wrote: >On Sat, Jun 23, 2012 at 02:15:34PM +0800, Wanpeng Li wrote: >> From: Wanpeng Li >> >> Since the return value variable in mem_cgroup_zone_nr_lru_pages and >> mem_cgroup_node_nr_lru_pages functions are u64, so replace the return >> value of funtions by u64 to avoid overflow. > >I wonder what 16 TB of memory must think running on a 32-bit kernel... >"What is this, an address space for ants?" Hi Johannes, You mean change all u64 in memcg to unsigned long? or something I miss.... Regards, Wanpeng Li -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/