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Subject[PATCH -tip 2/3] 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>
---
fs/proc/array.c | 4 ++--
include/linux/sched.h | 3 ---
kernel/exit.c | 2 +-
kernel/sched.c | 33 ++-------------------------------
4 files changed, 5 insertions(+), 37 deletions(-)
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 330deda..ca61a88 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -511,7 +511,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
do {
min_flt += t->min_flt;
maj_flt += t->maj_flt;
- gtime = cputime_add(gtime, task_gtime(t));
+ gtime = cputime_add(gtime, t->gtime);
t = next_thread(t);
} while (t != task);

@@ -536,7 +536,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
min_flt = task->min_flt;
maj_flt = task->maj_flt;
task_times(task, &utime, &stime);
- gtime = task_gtime(task);
+ gtime = task->gtime;
}

/* scale priority and nice values from timeslices to -20..20 */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index fe6ae15..0395b0f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1720,9 +1720,6 @@ static inline void put_task_struct(struct task_struct *t)
__put_task_struct(t);
}

-extern cputime_t task_utime(struct task_struct *p);
-extern cputime_t task_stime(struct task_struct *p);
-extern cputime_t task_gtime(struct task_struct *p);
extern void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st);

/*
diff --git a/kernel/exit.c b/kernel/exit.c
index a19e429..480de5b 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 4d5e1a2..a7093c1 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5146,22 +5146,12 @@ 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

@@ -5199,27 +5189,8 @@ 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.
--
1.6.5.3


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