linux-kernel - [PATCH] remove CONFIG_OUT_OF_LINE_PFN_TO

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Date:	Wed, 17 Dec 2008 20:09:12 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kosaki.motohiro@...fujitsu.com
Subject: [PATCH] remove CONFIG_OUT_OF_LINE_PFN_TO_PAGE


Now, any architecture don't use CONFIG_OUT_OF_LINE_PFN_TO_PAGE at all.
it can be removed.


Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
---
 include/asm-generic/memory_model.h |    7 -------
 mm/page_alloc.c                    |   13 -------------
 2 files changed, 20 deletions(-)

Index: b/include/asm-generic/memory_model.h
===================================================================
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -69,15 +69,8 @@
 })
 #endif /* CONFIG_FLATMEM/DISCONTIGMEM/SPARSEMEM */
 
-#ifdef CONFIG_OUT_OF_LINE_PFN_TO_PAGE
-struct page;
-/* this is useful when inlined pfn_to_page is too big */
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *page);
-#else
 #define page_to_pfn __page_to_pfn
 #define pfn_to_page __pfn_to_page
-#endif /* CONFIG_OUT_OF_LINE_PFN_TO_PAGE */
 
 #endif /* __ASSEMBLY__ */
 
Index: b/mm/page_alloc.c
===================================================================
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4593,19 +4593,6 @@ void *__init alloc_large_system_hash(con
 	return table;
 }
 
-#ifdef CONFIG_OUT_OF_LINE_PFN_TO_PAGE
-struct page *pfn_to_page(unsigned long pfn)
-{
-	return __pfn_to_page(pfn);
-}
-unsigned long page_to_pfn(struct page *page)
-{
-	return __page_to_pfn(page);
-}
-EXPORT_SYMBOL(pfn_to_page);
-EXPORT_SYMBOL(page_to_pfn);
-#endif /* CONFIG_OUT_OF_LINE_PFN_TO_PAGE */
-
 /* Return a pointer to the bitmap storing bits affecting a block of pages */
 static inline unsigned long *get_pageblock_bitmap(struct zone *zone,
 							unsigned long pfn)


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