From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 14 Nov 2007 09:19:38 +0900 From: KAMEZAWA Hiroyuki Subject: Re: Sparsemem: Do not reserve section flags if VMEMMAP is in use Message-Id: <20071114091938.57d0f44c.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20071113134603.5b4b0f24.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: Christoph Lameter Cc: Andy Whitcroft , linux-mm@kvack.org List-ID: On Tue, 13 Nov 2007 13:38:11 -0800 (PST) Christoph Lameter wrote: > Well that is currently not done for !SPARSEMEM configuration where > SECTIONS_WIDTH is also zero. So I left it as is. > > > page_to_section is used in page_to_nid() if NODE_NOT_IN_PAGE_FLAGS=y. > > (I'm not sure exact config dependency.) > > NODE_NOT_IN_PAGE_FLAGS=y only occurs when flag bits are > taken away by sparsemem for the section bits. > > Ahh, thank you for confirmation. Regards, -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