1 files changed, 20 insertions, 0 deletions

diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index 5404a845690..b2fa506667c 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -22,8 +22,11 @@
 ************************************************************************/
 #include <linux/clocksource.h>
 #include <linux/jiffies.h>
+#include <linux/module.h>
 #include <linux/init.h>
 
+#include "tick-internal.h"
+
 /* The Jiffies based clocksource is the lowest common
  * denominator clock source which should function on
  * all systems. It has the same coarse resolution as
@@ -64,6 +67,23 @@ struct clocksource clocksource_jiffies = {
         .shift          = JIFFIES_SHIFT,
 };
 
+#if (BITS_PER_LONG < 64)
+u64 get_jiffies_64(void)
+{
+        unsigned long seq;
+        u64 ret;
+
+        do {
+                seq = read_seqbegin(&xtime_lock);
+                ret = jiffies_64;
+        } while (read_seqretry(&xtime_lock, seq));
+        return ret;
+}
+EXPORT_SYMBOL(get_jiffies_64);
+#endif
+
+EXPORT_SYMBOL(jiffies);
+
 static int __init init_jiffies_clocksource(void)
 {
         return clocksource_register(&clocksource_jiffies);