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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-21 15:55:59 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-28 17:07:38 +0100 |
| commit | a634f93335daa8f38180a0e576ccd68a73c36eaf (patch) | |
| tree | 19cb10ec27da81bd07a3eec1b4d4e9f814402c3a /kernel/posix-cpu-timers.c | |
| parent | ec05a2311c35243cea08bca00bcf53a576ee41a2 (diff) | |
| download | lwn-a634f93335daa8f38180a0e576ccd68a73c36eaf.tar.gz lwn-a634f93335daa8f38180a0e576ccd68a73c36eaf.zip | |
cputime: Move thread_group_cputime() to sched code
thread_group_cputime() is a general cputime API that is not only
used by posix cpu timer. Let's move this helper to sched code.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'kernel/posix-cpu-timers.c')
| -rw-r--r-- | kernel/posix-cpu-timers.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index 125cb67daa21..d73840271dce 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -217,30 +217,6 @@ static int cpu_clock_sample(const clockid_t which_clock, struct task_struct *p, return 0; } -void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times) -{ - struct signal_struct *sig = tsk->signal; - struct task_struct *t; - - times->utime = sig->utime; - times->stime = sig->stime; - times->sum_exec_runtime = sig->sum_sched_runtime; - - rcu_read_lock(); - /* make sure we can trust tsk->thread_group list */ - if (!likely(pid_alive(tsk))) - goto out; - - t = tsk; - do { - times->utime += t->utime; - times->stime += t->stime; - times->sum_exec_runtime += task_sched_runtime(t); - } while_each_thread(tsk, t); -out: - rcu_read_unlock(); -} - static void update_gt_cputime(struct task_cputime *a, struct task_cputime *b) { if (b->utime > a->utime) |