From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [RFC][PATCH 5/6] slab: kmem_cache_objs_to_pages() Date: Fri, 01 Dec 2006 13:14:40 +0100 Message-ID: <1164975280.6588.188.camel@twins> References: <20061130101451.495412000@chello.nl> > <20061130101922.175620000@chello.nl> > Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-mm@kvack.org, David Miller Return-path: Received: from amsfep17-int.chello.nl ([213.46.243.15]:15689 "EHLO amsfep13-int.chello.nl") by vger.kernel.org with ESMTP id S967590AbWLAMVg (ORCPT ); Fri, 1 Dec 2006 07:21:36 -0500 To: Christoph Lameter In-Reply-To: Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, 2006-11-30 at 10:55 -0800, Christoph Lameter wrote: > On Thu, 30 Nov 2006, Peter Zijlstra wrote: > > > +unsigned int kmem_cache_objs_to_pages(struct kmem_cache *cachep, int nr) > > +{ > > + return ((nr + cachep->num - 1) / cachep->num) << cachep->gfporder; > > cachep->num refers to the number of objects in a slab of gfporder. > > thus > > return (nr + cachep->num - 1) / cachep->num; No, that would give the number of slabs needed, I want pages.