ia64: Reuse system and user vtime accounting functions on task switch
[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / ia64 / kernel / time.c
index 351df58..80ff9ac 100644 (file)
@@ -104,20 +104,15 @@ void vtime_task_switch(struct task_struct *prev)
 {
        struct thread_info *pi = task_thread_info(prev);
        struct thread_info *ni = task_thread_info(current);
-       cputime_t delta_stime;
-       __u64 now;
-
-       now = ia64_get_itc();
 
-       delta_stime = cycle_to_cputime(pi->ac_stime + (now - pi->ac_stamp));
        if (idle_task(smp_processor_id()) != prev)
-               account_system_time(prev, 0, delta_stime, delta_stime);
+               vtime_account_system(prev);
        else
-               account_idle_time(delta_stime);
+               vtime_account_idle(prev);
 
        vtime_account_user(prev);
 
-       pi->ac_stamp = ni->ac_stamp = now;
+       pi->ac_stamp = ni->ac_stamp;
        ni->ac_stime = ni->ac_utime = 0;
 }