From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id 572E58D0002 for ; Wed, 1 Dec 2010 19:55:49 -0500 (EST) Received: from kpbe16.cbf.corp.google.com (kpbe16.cbf.corp.google.com [172.25.105.80]) by smtp-out.google.com with ESMTP id oB20tlfM002755 for ; Wed, 1 Dec 2010 16:55:47 -0800 Received: from pxi15 (pxi15.prod.google.com [10.243.27.15]) by kpbe16.cbf.corp.google.com with ESMTP id oB20tUng000727 for ; Wed, 1 Dec 2010 16:55:46 -0800 Received: by pxi15 with SMTP id 15so1257147pxi.33 for ; Wed, 01 Dec 2010 16:55:46 -0800 (PST) Date: Wed, 1 Dec 2010 16:55:42 -0800 (PST) From: David Rientjes Subject: Re: [7/8, v6] NUMA Hotplug Emulator: extend memory probe interface to support NUMA In-Reply-To: <20101130071437.358387592@intel.com> Message-ID: References: <20101130071324.908098411@intel.com> <20101130071437.358387592@intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Shaohui Zheng Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, haicheng.li@linux.intel.com, lethal@linux-sh.org, ak@linux.intel.com, shaohui.zheng@linux.intel.com, dave@linux.vnet.ibm.com, gregkh@suse.de, Haicheng Li , Wu Fengguang List-ID: On Tue, 30 Nov 2010, shaohui.zheng@intel.com wrote: > From: Shaohui Zheng > > Extend memory probe interface to support an extra paramter nid, > the reserved memory can be added into this node if node exists. > > Add a memory section(128M) to node 3(boots with mem=1024m) > > echo 0x40000000,3 > memory/probe > > And more we make it friendly, it is possible to add memory to do > > echo 3g > memory/probe > echo 1024m,3 > memory/probe > > It maintains backwards compatibility. > > Another format suggested by Dave Hansen: > > echo physical_address=0x40000000 numa_node=3 > memory/probe > > it is more explicit to show meaning of the parameters. > I don't like this interface, I think it would be much better to map the memory region to the desired node id prior to using probe as an extention to debugfs. -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org