thp: clear_copy_huge_page
Move the copy/clear_huge_page functions to common code to share between
hugetlb.c and huge_memory.c.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 14ddd98..cc6ab10 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1589,5 +1589,14 @@
extern void dump_page(struct page *page);
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
+extern void clear_huge_page(struct page *page,
+ unsigned long addr,
+ unsigned int pages_per_huge_page);
+extern void copy_user_huge_page(struct page *dst, struct page *src,
+ unsigned long addr, struct vm_area_struct *vma,
+ unsigned int pages_per_huge_page);
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
+
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */