linux-kernel - [PATCH] refactor macros

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Date:	Tue, 15 Jun 2010 13:18:13 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] refactor macros

Hi Andi-san,

Andrew and Mel gave me an improvement.
Could you put this patch on top of hwpoison branch in your tree?

Thanks,
Naoya Horiguchi
---
CONFIG_HUGETLBFS controls hugetlbfs interface code.
OTOH, CONFIG_HUGETLB_PAGE controls hugepage management code.
So we should use CONFIG_HUGETLB_PAGE here.

Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
---
 include/linux/hugetlb_inline.h |    4 ++--
 mm/rmap.c                      |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/hugetlb_inline.h b/include/linux/hugetlb_inline.h
index cf00b6d..6931489 100644
--- a/include/linux/hugetlb_inline.h
+++ b/include/linux/hugetlb_inline.h
@@ -1,7 +1,7 @@
 #ifndef _LINUX_HUGETLB_INLINE_H
-#define _LINUX_HUGETLB_INLINE_H 1
+#define _LINUX_HUGETLB_INLINE_H
 
-#ifdef CONFIG_HUGETLBFS
+#ifdef CONFIG_HUGETLB_PAGE
 
 #include <linux/mm.h>
 
diff --git a/mm/rmap.c b/mm/rmap.c
index 0ad5357..71bd30a 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1462,7 +1462,7 @@ int rmap_walk(struct page *page, int (*rmap_one)(struct page *,
 }
 #endif /* CONFIG_MIGRATION */
 
-#ifdef CONFIG_HUGETLBFS
+#ifdef CONFIG_HUGETLB_PAGE
 /*
  * The following three functions are for anonymous (private mapped) hugepages.
  * Unlike common anonymous pages, anonymous hugepages have no accounting code
@@ -1503,4 +1503,4 @@ void hugepage_add_new_anon_rmap(struct page *page,
 	atomic_set(&page->_mapcount, 0);
 	__hugepage_set_anon_rmap(page, vma, address, 1);
 }
-#endif /* CONFIG_HUGETLBFS */
+#endif /* CONFIG_HUGETLB_PAGE */
-- 
1.7.0.1
--
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