From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 30 Nov 2006 10:55:51 -0800 (PST) From: Christoph Lameter Subject: Re: [RFC][PATCH 5/6] slab: kmem_cache_objs_to_pages() In-Reply-To: <20061130101922.175620000@chello.nl>> Message-ID: References: <20061130101451.495412000@chello.nl>> <20061130101922.175620000@chello.nl>> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Peter Zijlstra Cc: netdev@vger.kernel.org, linux-mm@kvack.org, David Miller List-ID: 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; But then this is very optimistic estimate that assumes a single node and no free objects in between. -- 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