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-rw-r--r--include/linux/mm.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2b6e22782699..69fd6bbb8cce 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2195,14 +2195,18 @@ kernel_map_pages(struct page *page, int numpages, int enable)
}
#ifdef CONFIG_HIBERNATION
extern bool kernel_page_present(struct page *page);
-#endif /* CONFIG_HIBERNATION */
-#else
+#endif /* CONFIG_HIBERNATION */
+#else /* CONFIG_DEBUG_PAGEALLOC */
static inline void
kernel_map_pages(struct page *page, int numpages, int enable) {}
#ifdef CONFIG_HIBERNATION
static inline bool kernel_page_present(struct page *page) { return true; }
-#endif /* CONFIG_HIBERNATION */
-#endif
+#endif /* CONFIG_HIBERNATION */
+static inline bool debug_pagealloc_enabled(void)
+{
+ return false;
+}
+#endif /* CONFIG_DEBUG_PAGEALLOC */
#ifdef __HAVE_ARCH_GATE_AREA
extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm);