From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id ED0AD6B0055 for ; Fri, 12 Jun 2009 05:47:50 -0400 (EDT) Date: Fri, 12 Jun 2009 11:49:19 +0200 From: Nick Piggin Subject: Re: slab: setup allocators earlier in the boot sequence Message-ID: <20090612094918.GH24044@wotan.suse.de> References: <20090612075427.GA24044@wotan.suse.de> <1244793592.30512.17.camel@penberg-laptop> <20090612080236.GB24044@wotan.suse.de> <1244793879.30512.19.camel@penberg-laptop> <1244796291.7172.87.camel@pasglop> <84144f020906120149k6cbe5177vef1944d9d216e8b2@mail.gmail.com> <20090612091304.GE24044@wotan.suse.de> <1244798660.7172.102.camel@pasglop> <20090612093046.GG24044@wotan.suse.de> <1244799865.7172.112.camel@pasglop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1244799865.7172.112.camel@pasglop> Sender: owner-linux-mm@kvack.org To: Benjamin Herrenschmidt Cc: Pekka Enberg , Linus Torvalds , Linux Kernel list , linux-mm , mingo@elte.hu, cl@linux-foundation.org, akpm@linux-foundation.org List-ID: On Fri, Jun 12, 2009 at 07:44:25PM +1000, Benjamin Herrenschmidt wrote: > On Fri, 2009-06-12 at 11:30 +0200, Nick Piggin wrote: > > On Fri, Jun 12, 2009 at 07:24:20PM +1000, Benjamin Herrenschmidt wrote: > > Yeah but it doesn't do it in the page allocator so it isn't > > really useful as a general allocator flags tweak. ATM it only > > helps this case of slab allocator hackery. > > I though I did it in page_alloc.c too but I'm happy to be told what I > missed :-) The intend is certainly do have a general allocator flag > tweak. Oh, no I missed that sorry you did. I'd be a bit worried about wanting it as a general allocator tweak. Even suspending IO for suspend/resume... it would be better to try solving that ordering by design and if not then perhaps add something to mm/vmscan.c rather than modify gfp flags all the way down. -- 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