[S390] DEBUG_PAGEALLOC support for s390.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/asm-s390/cacheflush.h b/include/asm-s390/cacheflush.h
index f7cade8..49d5af9 100644
--- a/include/asm-s390/cacheflush.h
+++ b/include/asm-s390/cacheflush.h
@@ -24,4 +24,8 @@
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void kernel_map_pages(struct page *page, int numpages, int enable);
+#endif
+
#endif /* _S390_CACHEFLUSH_H */