1 files changed, 5 insertions, 0 deletions

diff --git a/init/main.c b/init/main.c
index 3316dffe3e57..cb81ed116f62 100644
--- a/init/main.c
+++ b/init/main.c
@@ -318,6 +318,10 @@ static int __init unknown_bootoption(char *param, char *val)
         return 0;
 }
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+int __read_mostly debug_pagealloc_enabled = 0;
+#endif
+
 static int __init init_setup(char *str)
 {
         unsigned int i;
@@ -552,6 +556,7 @@ asmlinkage void __init start_kernel(void)
         preempt_disable();
         build_all_zonelists();
         page_alloc_init();
+        enable_debug_pagealloc();
         printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
         parse_early_param();
         parse_args("Booting kernel", static_command_line, __start___param,