From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [RFC][PATCH] unify pfn_to_page [9/25] ia64 pfn_to_page/page_to_pfn
Date: Mon, 06 Feb 2006 20:01:03 +0900 [thread overview]
Message-ID: <43E72C6F.7080009@jp.fujitsu.com> (raw)
In CONFIG_DISCONTIGMEM case, CONFIG_VIRTUAL_MEM_MAP is selected.(looks always...)
ia64 uses private page_to_pfn() func when CONFIG_VIRTUAL_MEM_MAP.
Replacing only FLATMEM case.
Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Index: cleanup_pfn_page/include/asm-ia64/page.h
===================================================================
--- cleanup_pfn_page.orig/include/asm-ia64/page.h
+++ cleanup_pfn_page/include/asm-ia64/page.h
@@ -106,9 +106,8 @@ extern int ia64_pfn_valid (unsigned long
#ifdef CONFIG_FLATMEM
# define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
-# define page_to_pfn(page) ((unsigned long) (page - mem_map))
-# define pfn_to_page(pfn) (mem_map + (pfn))
#elif defined(CONFIG_DISCONTIGMEM)
+#define ARCH_HAS_PFN_PAGE
extern struct page *vmem_map;
extern unsigned long min_low_pfn;
extern unsigned long max_low_pfn;
reply other threads:[~2006-02-06 11:00 UTC|newest]
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