summaryrefslogtreecommitdiff
path: root/include/linux/mm.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3c22d971afa7..1bba6789a50a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1118,9 +1118,21 @@ static inline void vm_stat_account(struct mm_struct *mm,
}
#endif /* CONFIG_PROC_FS */
-#ifndef CONFIG_DEBUG_PAGEALLOC
+#ifdef CONFIG_DEBUG_PAGEALLOC
+extern int debug_pagealloc_enabled;
+
+extern void kernel_map_pages(struct page *page, int numpages, int enable);
+
+static inline void enable_debug_pagealloc(void)
+{
+ debug_pagealloc_enabled = 1;
+}
+#else
static inline void
kernel_map_pages(struct page *page, int numpages, int enable) {}
+static inline void enable_debug_pagealloc(void)
+{
+}
#endif
extern struct vm_area_struct *get_gate_vma(struct task_struct *tsk);