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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-02-11 05:30:27 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-11 08:04:21 -0500
commit4da94d49b2ecb0a26e716a8811c3ecc542c2a65d (patch)
treea87980822b2499021f080c2b0235f441b30413cc /include/linux/sched.h
parent3fccfd67df79c6351a156eb25a7a514e5f39c4d9 (diff)
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>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h13
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)
2201 * Thread group CPU time accounting. 2201 * Thread group CPU time accounting.
2202 */ 2202 */
2203void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times); 2203void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times);
2204 2204void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
2205static inline
2206void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times)
2207{
2208 struct thread_group_cputimer *cputimer = &tsk->signal->cputimer;
2209 unsigned long flags;
2210
2211 spin_lock_irqsave(&cputimer->lock, flags);
2212 cputimer->running = 1;
2213 *times = cputimer->cputime;
2214 spin_unlock_irqrestore(&cputimer->lock, flags);
2215}
2216 2205
2217static inline void thread_group_cputime_init(struct signal_struct *sig) 2206static inline void thread_group_cputime_init(struct signal_struct *sig)
2218{ 2207{