linux-kernel - [PATCH 24/58] mm: include/linux/huge_mm.h: Declare is_vma_temporary

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Date:	Sun, 18 Nov 2012 21:28:03 -0800
From:	Josh Triplett <josh@...htriplett.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Josh Triplett <josh@...htriplett.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 24/58] mm: include/linux/huge_mm.h: Declare is_vma_temporary_stack unconditionally

include/linux/huge_mm.h declares is_vma_temporary_stack inside an ifdef
CONFIG_TRANSPARENT_HUGEPAGE; however, mm/rmap.c defines the function
unconditionally.  Move the function outside of the ifdef.

This eliminates a warning from gcc (-Wmissing-prototypes) and from
Sparse (-Wdecl).

mm/rmap.c:1440:6: warning: no previous prototype for ‘is_vma_temporary_stack’ [-Wmissing-prototypes]

Signed-off-by: Josh Triplett <josh@...htriplett.org>
---
 include/linux/huge_mm.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index b31cb7d..3f39803 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -53,13 +53,13 @@ extern pmd_t *page_check_address_pmd(struct page *page,
 #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
 #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
 
+extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
+
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #define HPAGE_PMD_SHIFT HPAGE_SHIFT
 #define HPAGE_PMD_MASK HPAGE_MASK
 #define HPAGE_PMD_SIZE HPAGE_SIZE
 
-extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
-
 #define transparent_hugepage_enabled(__vma)				\
 	((transparent_hugepage_flags &					\
 	  (1<<TRANSPARENT_HUGEPAGE_FLAG) ||				\
-- 
1.7.10.4

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