Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758116AbYLLCbu (ORCPT ); Thu, 11 Dec 2008 21:31:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756779AbYLLCbm (ORCPT ); Thu, 11 Dec 2008 21:31:42 -0500 Received: from smtp101.mail.mud.yahoo.com ([209.191.85.211]:33574 "HELO smtp101.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756606AbYLLCbl (ORCPT ); Thu, 11 Dec 2008 21:31:41 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=mmhPU4hbabXkyIoUhbd1FpgB2sc950JjSwrsHFodzv78HbckbA79sJZCzPBKFUS4IDEB1EIN0nCBCwmebK1vBGV1XKVZVd1bwGGweXyvQMdPtnZCiHIy67XH6QZ+5Lue0ks4Pg/kp3ml46sFZrf00VgUxY9RIz2bFHeVa0eOABw= ; X-YMail-OSG: X4hgdEYVM1nOhD0c2HvgCg6sEqElCuaaEsvZGFY9lBwl0zv8koFZS.3t_nBvUdJRRbvuBpkTpQLDfF_ylXek.Q78iUCzUM8Q.QX8vbaI0QWUPVjDBIr7Tcrt2BVX5mjHXw2ACPxKjsuaZeE8v0Z8zo7dDfpbui6bqFiG.4g5 X-Yahoo-Newman-Property: ymail-3 From: Nick Piggin To: Andrew Morton Subject: Re: [PATCH][v2] fork_init: fix division by zero Date: Fri, 12 Dec 2008 12:31:33 +1000 User-Agent: KMail/1.9.5 Cc: Al Viro , yur@emcraft.com, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, Geert.Uytterhoeven@sonycom.com, dhowells@redhat.com, miltonm@bga.com, wd@denx.de, dzu@denx.de, yanok@emcraft.com References: <200812101950.51958.yur@emcraft.com> <20081211202800.GQ28946@ZenIV.linux.org.uk> <20081211124330.ff9b7483.akpm@linux-foundation.org> In-Reply-To: <20081211124330.ff9b7483.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200812121331.34602.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 17 On Friday 12 December 2008 07:43, Andrew Morton wrote: > On Thu, 11 Dec 2008 20:28:00 +0000 > > Do they actually cross the page boundaries? > > Some flavours of slab have at times done an order-1 allocation for > objects which would fit into an order-0 page (etc) if it looks like > that will be beneficial from a packing POV. I'm unsure whether that > still happens - I tried to get it stamped out for reliability reasons. Hmph, SLUB uses order-3 allocations for 832 byte sized objects by default here (mm struct). -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/