From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 561116B01E3 for ; Mon, 12 Apr 2010 10:32:44 -0400 (EDT) Date: Mon, 12 Apr 2010 09:29:03 -0500 (CDT) From: Christoph Lameter Subject: Re: [PATCH 00 of 41] Transparent Hugepage Support #17 In-Reply-To: Message-ID: References: <20100410184750.GJ5708@random.random> <20100410190233.GA30882@elte.hu> <4BC0CFF4.5000207@redhat.com> <20100410194751.GA23751@elte.hu> <4BC0DE84.3090305@redhat.com> <20100411104608.GA12828@elte.hu> <4BC1B2CA.8050208@redhat.com> <20100411120800.GC10952@elte.hu> <20100412060931.GP5683@laptop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Pekka Enberg Cc: Nick Piggin , Ingo Molnar , Avi Kivity , Mike Galbraith , Jason Garrett-Glaser , Andrea Arcangeli , Linus Torvalds , Andrew Morton , linux-mm@kvack.org, Marcelo Tosatti , Adam Litke , Izik Eidus , Hugh Dickins , Rik van Riel , Mel Gorman , Dave Hansen , Benjamin Herrenschmidt , Mike Travis , KAMEZAWA Hiroyuki , Chris Wright , bpicco@redhat.com, KOSAKI Motohiro , Balbir Singh , Arnd Bergmann , "Michael S. Tsirkin" , Peter Zijlstra , Johannes Weiner , Daisuke Nishimura List-ID: On Mon, 12 Apr 2010, Pekka Enberg wrote: > > Especially when you use something like SLUB as the memory allocator > > which requires higher order allocations for objects which are pinned > > in kernel memory. > > I guess we'd need to merge the SLUB defragmentation patches to fix that? 1. SLUB does not require higher order allocations. 2. SLUB defrag patches would allow reclaim / moving of slab memory but would require callbacks to be provided by slab users to remove references to objects. -- 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