From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 24 Dec 2004 12:23:01 -0200 From: Marcelo Tosatti Subject: Re: Splitting the page migration patches out of the memory hotplug patch Message-ID: <20041224142301.GA7219@logos.cnet> References: <41CC4517.3080506@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <41CC4517.3080506@sgi.com> Content-Transfer-Encoding: 8BIT Sender: owner-linux-mm@kvack.org Return-Path: To: Ray Bryant Cc: Dave Hansen , Dave@sr71.net, Hirokazu Takahashi , linux-mm List-ID: On Fri, Dec 24, 2004 at 10:34:31AM -0600, Ray Bryant wrote: > (Addling linux-mm, Marcello and Hirakazu....what I'm up > to is trying to create a roll-up patch that contains just > the memory migration code from mhp3, since I need page > migration for some work I am doing.) > > Dave, > > Well, the only other big change I made (other than dropping > P32-memsection_migrate.patch) to get it to compile and boot > for Altix were as follows: > > (I'll work on testing it after the holiday.) > > P29-add-memory-migration-to-Kconfig-ia64.patch > > Add memory migration to the config menu > for ia64. > > P30-remove-page_under_capture.patch > > removed page_under_capture() from the end > of shrink_cache() in mm/vmscan.c. This > is not defined in the P series of patches. > This particular call was introduced by patch > P01-steal_page_from_lru.patch > > (I'm not sure how to number these patches to fit in with > your scheme, so just made some stuff up.) > > (Oh yeah, this is in top of 2.6.10-rc2-mm4.) > > Now it would be nice if we could figure out a way to keep > these patchsets distinct (i. e. so work on page migration > and hotplug can continue without me redoing this every > week or two.) > > One way to do that would be to fix it so that the page > migration patches are first in the hotplug patch, or to > separate the two out and assume that hotplug patch goes > on top of the page migration patch. How would you like > to go about this? (I'll take a whack at moving them to > the top of the mhp3 series file and see how much trouble > I get into....) I think thats up to Dave who maintains the patchset. > PS: It doesn't look like Marcello and Hirakazu's > migration patch is part of your P* series. Is > that correct? Yes, the plan is to merge the migration cache to the memory hotplug as soon as its well tested - we still lack transformation of migration pages into swap pages, which involves redoing all pte's of a given migration page. Happy holiday! -- 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: aart@kvack.org