cputime: Optimize jiffies_to_cputime(1)

[lisovros/linux_canprio.git] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 1b59e265273b032d6aac2baec9b059646ca563bf..8f977d5cc515cb267ada21e1578668fe8dfb6953 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5031,17 +5031,16 @@ void account_idle_time(cputime_t cputime)
  */
 void account_process_tick(struct task_struct *p, int user_tick)
 {
-       cputime_t one_jiffy = jiffies_to_cputime(1);
-       cputime_t one_jiffy_scaled = cputime_to_scaled(one_jiffy);
+       cputime_t one_jiffy_scaled = cputime_to_scaled(cputime_one_jiffy);
        struct rq *rq = this_rq();
 
        if (user_tick)
-               account_user_time(p, one_jiffy, one_jiffy_scaled);
+               account_user_time(p, cputime_one_jiffy, one_jiffy_scaled);
        else if ((p != rq->idle) || (irq_count() != HARDIRQ_OFFSET))
-               account_system_time(p, HARDIRQ_OFFSET, one_jiffy,
+               account_system_time(p, HARDIRQ_OFFSET, cputime_one_jiffy,
                                    one_jiffy_scaled);
        else
-               account_idle_time(one_jiffy);
+               account_idle_time(cputime_one_jiffy);
 }
 
 /*