From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 8 Dec 2006 12:06:07 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC][PATCH] vmemmap on sparsemem v2 [1/5] generic vmemmap on sparsemem Message-Id: <20061208120607.0e3a625f.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20061205214902.b8454d67.kamezawa.hiroyu@jp.fujitsu.com> References: <20061205214517.5ad924f6.kamezawa.hiroyu@jp.fujitsu.com> <20061205214902.b8454d67.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: linux-mm@kvack.org, clameter@engr.sgi.com, apw@shadowen.org List-ID: On Tue, 5 Dec 2006 21:49:02 +0900 KAMEZAWA Hiroyuki wrote: > > +#ifdef CONFIG_SPARSEMEM_VMEMMAP > +/* > + * sparse_vmem_map_start is defined by each arch. > + * vmem_map is declared by each arch. > + */ > +static inline struct page *__section_mem_map_addr(struct mem_section *section) > +{ > + return vmem_map; > +} > +#else I confirmed that this style add one memory access (ld). I'll go back to #define pfn_to_page(pfn) (mem_map + pfn) style. Thanks, -Kame -- 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