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-rw-r--r--include/linux/mm.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a9902152449f..cd123272d28d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -329,6 +329,13 @@ struct inode;
#define page_private(page) ((page)->private)
#define set_page_private(page, v) ((page)->private = (v))
+#if !defined(__HAVE_ARCH_PTE_DEVMAP) || !defined(CONFIG_TRANSPARENT_HUGEPAGE)
+static inline int pmd_devmap(pmd_t pmd)
+{
+ return 0;
+}
+#endif
+
/*
* FIXME: take this include out, include page-flags.h in
* files which need it (119 of them)