timers: fix TIMER_ABSTIME for process wide cpu timers

The POSIX timer interface allows for absolute time expiry values through the
TIMER_ABSTIME flag, therefore we have to synchronize the timer to the clock
every time we start it.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 12 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5d10fa0b6002..8981e52c714f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2201,18 +2201,7 @@ static inline int spin_needbreak(spinlock_t *lock)
  * Thread group CPU time accounting.
  */
 void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
-
-static inline
-void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times)
-{
-        struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
-        unsigned long flags;
-
-        spin_lock_irqsave(&cputimer->lock, flags);
-        cputimer->running = 1;
-        *times = cputimer->cputime;
-        spin_unlock_irqrestore(&cputimer->lock, flags);
-}
+void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
 
 static inline void thread_group_cputime_init(struct signal_struct *sig)
 {