From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx202.postini.com [74.125.245.202]) by kanga.kvack.org (Postfix) with SMTP id 3AF276B005A for ; Tue, 26 Jun 2012 22:09:36 -0400 (EDT) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SjhhE-0001KM-7B for linux-mm@kvack.org; Wed, 27 Jun 2012 04:09:32 +0200 Received: from 121.50.20.41 ([121.50.20.41]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 27 Jun 2012 04:09:32 +0200 Received: from minchan by 121.50.20.41 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 27 Jun 2012 04:09:32 +0200 From: Minchan Kim Subject: Re: needed lru_add_drain_all() change Date: Wed, 27 Jun 2012 11:09:31 +0900 Message-ID: <4FEA6B5B.5000205@kernel.org> References: <20120626143703.396d6d66.akpm@linux-foundation.org> <4FEA59EE.8060804@kernel.org> <20120626181504.23b8b73d.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit In-Reply-To: <20120626181504.23b8b73d.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: KOSAKI Motohiro On 06/27/2012 10:15 AM, Andrew Morton wrote: >> Considering mlock and CPU pinning >> > of realtime thread is very rare, it might be rather expensive solution. >> > Unfortunately, I have no idea better than you suggested. :( >> > >> > And looking 8891d6da17, mlock's lru_add_drain_all isn't must. >> > If it's really bother us, couldn't we remove it? > "grep lru_add_drain_all mm/*.c". They're all problematic. Yeb but I'm not sure such system modeling is good. Potentially, It could make problem once we use workqueue of other CPU. -- Kind regards, Minchan Kim -- 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