sched: Remove task_{u,s,g}time()

Now all task_{u,s}time() pairs are replaced by task_times().
And task_gtime() is too simple to be an inline function.

Cleanup them all.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Spencer Candland <spencer@bluehost.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
LKML-Reference: <4B0E16D1.70902@jp.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 3 insertions, 32 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 29068ab2670a..2eaf68b634e3 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -115,7 +115,7 @@ static void __exit_signal(struct task_struct *tsk)
                 task_times(tsk, &utime, &stime);
                 sig->utime = cputime_add(sig->utime, utime);
                 sig->stime = cputime_add(sig->stime, stime);
-                sig->gtime = cputime_add(sig->gtime, task_gtime(tsk));
+                sig->gtime = cputime_add(sig->gtime, tsk->gtime);
                 sig->min_flt += tsk->min_flt;
                 sig->maj_flt += tsk->maj_flt;
                 sig->nvcsw += tsk->nvcsw;
diff --git a/kernel/sched.c b/kernel/sched.c
index 475a6f2b7158..82251c21f785 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5182,22 +5182,12 @@ void account_idle_ticks(unsigned long ticks)
  * Use precise platform statistics if available:
  */
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-cputime_t task_utime(struct task_struct *p)
-{
-        return p->utime;
-}
-
-cputime_t task_stime(struct task_struct *p)
-{
-        return p->stime;
-}
-
 void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
 {
         if (ut)
-                *ut = task_utime(p);
+                *ut = p->utime;
         if (st)
-                *st = task_stime(p);
+                *st = p->stime;
 }
 #else
 
@@ -5235,27 +5225,8 @@ void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
         if (st)
                 *st = p->prev_stime;
 }
-
-cputime_t task_utime(struct task_struct *p)
-{
-        cputime_t utime;
-        task_times(p, &utime, NULL);
-        return utime;
-}
-
-cputime_t task_stime(struct task_struct *p)
-{
-        cputime_t stime;
-        task_times(p, NULL, &stime);
-        return stime;
-}
 #endif
 
-inline cputime_t task_gtime(struct task_struct *p)
-{
-        return p->gtime;
-}
-
 /*
  * This function gets called by the timer code, with HZ frequency.
  * We call it with interrupts disabled.