From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f181.google.com (mail-ig0-f181.google.com [209.85.213.181]) by kanga.kvack.org (Postfix) with ESMTP id 86B556B0254 for ; Fri, 23 Oct 2015 12:10:41 -0400 (EDT) Received: by igbdj2 with SMTP id dj2so18881308igb.1 for ; Fri, 23 Oct 2015 09:10:41 -0700 (PDT) Received: from resqmta-ch2-06v.sys.comcast.net (resqmta-ch2-06v.sys.comcast.net. [2001:558:fe21:29:69:252:207:38]) by mx.google.com with ESMTPS id j139si16395280ioj.46.2015.10.23.09.10.40 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 23 Oct 2015 09:10:40 -0700 (PDT) Date: Fri, 23 Oct 2015 11:10:38 -0500 (CDT) From: Christoph Lameter Subject: Re: Make vmstat deferrable again (was Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks) In-Reply-To: <20151023144928.GA455@swordfish> Message-ID: References: <201510222037.ACH86458.OFOLFtQFOHJSVM@I-love.SAKURA.ne.jp> <20151022140944.GA30579@mtj.duckdns.org> <20151022150623.GE26854@dhcp22.suse.cz> <20151022151528.GG30579@mtj.duckdns.org> <20151023083719.GD2410@dhcp22.suse.cz> <20151023120728.GA462@swordfish> <20151023144928.GA455@swordfish> Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Sergey Senozhatsky Cc: Michal Hocko , Tejun Heo , Tetsuo Handa , linux-mm@kvack.org, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, David Rientjes , oleg@redhat.com, kwalker@redhat.com, akpm@linux-foundation.org, hannes@cmpxchg.org, vdavydov@parallels.com, skozina@redhat.com, mgorman@suse.de, riel@redhat.com On Fri, 23 Oct 2015, Sergey Senozhatsky wrote: > by the way, tick_nohz_stop_sched_tick() receives cpu from __tick_nohz_idle_enter(). > do you want to pass it to quiet_vmstat()? No this is quite wrong at this point. quiet_vmstat() needs to be called from the cpu going into idle state. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org