3 files changed, 1 insertions, 19 deletions

diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 8422b4ed6882..b9376cd5a187 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -77,11 +77,6 @@ static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
         return kstat_cpu(cpu).irqs_sum;
 }
 
-/*
- * Lock/unlock the current runqueue - to extract task statistics:
- */
-extern unsigned long long task_delta_exec(struct task_struct *);
-
 extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
 extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
 extern void account_steal_time(cputime_t);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 5f12ca65c9a7..797a6c84c48d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2499,19 +2499,6 @@ static u64 do_task_delta_exec(struct task_struct *p, struct rq *rq)
         return ns;
 }
 
-unsigned long long task_delta_exec(struct task_struct *p)
-{
-        unsigned long flags;
-        struct rq *rq;
-        u64 ns = 0;
-
-        rq = task_rq_lock(p, &flags);
-        ns = do_task_delta_exec(p, rq);
-        task_rq_unlock(rq, p, &flags);
-
-        return ns;
-}
-
 /*
  * Return accounted runtime for the task.
  * In case the task is currently running, return the runtime plus current's
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 492b986195d5..a16b67859e2a 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -553,7 +553,7 @@ static int cpu_timer_sample_group(const clockid_t which_clock,
                 *sample = cputime_to_expires(cputime.utime);
                 break;
         case CPUCLOCK_SCHED:
-                *sample = cputime.sum_exec_runtime + task_delta_exec(p);
+                *sample = cputime.sum_exec_runtime;
                 break;
         }
         return 0;