From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 9 Mar 2006 04:00:21 -0800 From: Andrew Morton Subject: Re: [PATCH: 000/017] (RFC)Memory hotplug for new nodes v.3. Message-Id: <20060309040021.3cf64e4b.akpm@osdl.org> In-Reply-To: <20060308212316.0022.Y-GOTO@jp.fujitsu.com> References: <20060308212316.0022.Y-GOTO@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Yasunori Goto Cc: tony.luck@intel.com, ak@suse.de, jschopp@austin.ibm.com, haveblue@us.ibm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-ia64@vger.kernel.org List-ID: Yasunori Goto wrote: > > I'll post newest patches for memory hotadd with pgdat allocation as V3. > There are many changes to make more common code. General comments: - Thanks for working against -mm. It can be a bit of a pain, but it eases staging and integration later on. - Please review all the code to check that all those functions which can be made static are indeed made static. I see quite a few global functions there. - Make sure that all functions which can be tagged __meminit are so tagged. - It would be useful to build a CONFIG_MEMORY_HOTPLUG=n kernel both with and without the patchsets and to publish and maintain the increase in code size. Ideally that increase will be zero. Probably it won't be, and it'd be nice to understand why, and to minimise it. - Arch issues: - Which architectures is this patchset aimed at and tested on? - Which other architectures might be able to use this code in the future? Because we should ask the maintainers of those other architectures to take a look at the changes. - What locking does node hot-add use? There are quite a few places in the kernel which cheerfully iterate across node lists while assuming that they won't change. The usage of stop_machine_run() is supposed to cover all that, I assume? -- 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