1 files changed, 6 insertions, 0 deletions

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 */