From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e1.ny.us.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k7HElTIT005577 for ; Thu, 17 Aug 2006 10:47:29 -0400 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay02.pok.ibm.com (8.13.6/8.13.6/NCO v8.1.1) with ESMTP id k7HElTFj221200 for ; Thu, 17 Aug 2006 10:47:29 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id k7HElTXi019786 for ; Thu, 17 Aug 2006 10:47:29 -0400 Subject: Re: [RFC][PATCH] "challenged" memory controller From: Dave Hansen In-Reply-To: <44E447E7.8070502@in.ibm.com> References: <20060815192047.EE4A0960@localhost.localdomain> <20060815150721.21ff961e.pj@sgi.com> <44E447E7.8070502@in.ibm.com> Content-Type: text/plain Date: Thu, 17 Aug 2006 07:47:25 -0700 Message-Id: <1155826045.9274.44.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: balbir@in.ibm.com Cc: Paul Jackson , linux-mm@kvack.org List-ID: On Thu, 2006-08-17 at 16:11 +0530, Balbir Singh wrote: > Would it be possible to protect task->cpuset using rcu_read_lock() for read > references as cpuset_update_task_memory_state() does (and use the generations > trick to see if a task changed cpusets)? I guess the cost paid is an additional > field in the page structure to add generations. cpusets isn't going to be used long-term here, so we don't really have to worry about it. -- Dave -- 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