proper prototype for hugetlb_get_unmapped_area()

Add a proper prototype for hugetlb_get_unmapped_area() in
include/linux/hugetlb.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 7 insertions, 4 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 8c718a3d413f..9ba71b252f3e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -98,10 +98,7 @@ out:
  * Called under down_write(mmap_sem).
  */
 
-#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
-unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-                unsigned long len, unsigned long pgoff, unsigned long flags);
-#else
+#ifndef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
 static unsigned long
 hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
                 unsigned long len, unsigned long pgoff, unsigned long flags)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 3f3e7a648da3..b4570b62ab85 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -189,4 +189,10 @@ static inline void set_file_hugepages(struct file *file)
 
 #endif /* !CONFIG_HUGETLBFS */
 
+#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
+unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+                                        unsigned long len, unsigned long pgoff,
+                                        unsigned long flags);
+#endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */
+
 #endif /* _LINUX_HUGETLB_H */