1 files changed, 13 insertions, 0 deletions

diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index 8affbfd0cdb0..22ed55d1167f 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -330,3 +330,16 @@ unsigned long long __attribute__((weak)) sched_clock(void)
 {
         return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
 }
+
+unsigned long long cpu_clock(int cpu)
+{
+        unsigned long long clock;
+        unsigned long flags;
+
+        local_irq_save(flags);
+        clock = sched_clock_cpu(cpu);
+        local_irq_restore(flags);
+
+        return clock;
+}
+EXPORT_SYMBOL_GPL(cpu_clock);