From: Christoph Lameter <clameter@sgi.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: linux-mm@kvack.org
Subject: Re: [rfc 05/10] Sparsemem: Vmemmap does not need section bits
Date: Mon, 3 Mar 2008 16:20:45 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0803031620001.6789@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0803031614510.6741@schroedinger.engr.sgi.com>
Something like this?
---
include/linux/mm.h | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h 2008-03-03 16:15:55.395071738 -0800
+++ linux-2.6/include/linux/mm.h 2008-03-03 16:16:49.047411228 -0800
@@ -500,10 +500,12 @@ static inline struct zone *page_zone(str
return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)];
}
+#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP)
static inline unsigned long page_to_section(struct page *page)
{
return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;
}
+#endif
static inline void set_page_zone(struct page *page, enum zone_type zone)
{
--
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next prev parent reply other threads:[~2008-03-04 0:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-01 4:07 [rfc 00/10] [RFC] Page flags: Saving some, making handling easier etc Christoph Lameter
2008-03-01 4:07 ` [rfc 01/10] Pageflags: Use an enum for the flags Christoph Lameter
2008-03-01 4:07 ` [rfc 02/10] Pageflags: Introduce macros to generate page flag functions Christoph Lameter
2008-03-01 8:22 ` KOSAKI Motohiro
2008-03-03 20:08 ` Christoph Lameter
2008-03-01 4:07 ` [rfc 03/10] Pageflags: Convert to the use of new macros Christoph Lameter
2008-03-01 4:07 ` [rfc 04/10] Pageflags: Eliminate PG_readahead Christoph Lameter
2008-03-01 4:08 ` [rfc 05/10] Sparsemem: Vmemmap does not need section bits Christoph Lameter
2008-03-01 4:33 ` KAMEZAWA Hiroyuki
2008-03-03 20:06 ` Christoph Lameter
2008-03-04 0:18 ` KAMEZAWA Hiroyuki
2008-03-04 0:15 ` Christoph Lameter
2008-03-04 0:20 ` Christoph Lameter [this message]
2008-03-04 0:46 ` KAMEZAWA Hiroyuki
2008-03-01 4:08 ` [rfc 06/10] Kbuild: Create a way to create preprocessor constants from C expressions Christoph Lameter
2008-03-01 4:08 ` [rfc 07/10] Pageflags: Get rid of FLAGS_RESERVED Christoph Lameter
2008-03-01 4:08 ` [rfc 08/10] Export NR_MAX_ZONES to the preprocessor Christoph Lameter
2008-03-01 4:08 ` [rfc 09/10] Get rid of __ZONE_COUNT Christoph Lameter
2008-03-01 4:08 ` [rfc 10/10] Pageflags land grab Christoph Lameter
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