diff options
Diffstat (limited to 'include/linux/sched/cputime.h')
| -rw-r--r-- | include/linux/sched/cputime.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/sched/cputime.h b/include/linux/sched/cputime.h index eefa5dff16b4..6c9f19a33865 100644 --- a/include/linux/sched/cputime.h +++ b/include/linux/sched/cputime.h @@ -70,7 +70,7 @@ void thread_group_sample_cputime(struct task_struct *tsk, u64 *samples); */ /** - * get_running_cputimer - return &tsk->signal->cputimer if cputimer is running + * get_running_cputimer - return &tsk->signal->cputimer if cputimers are active * * @tsk: Pointer to target task. */ @@ -80,8 +80,11 @@ struct thread_group_cputimer *get_running_cputimer(struct task_struct *tsk) { struct thread_group_cputimer *cputimer = &tsk->signal->cputimer; - /* Check if cputimer isn't running. This is accessed without locking. */ - if (!READ_ONCE(cputimer->running)) + /* + * Check whether posix CPU timers are active. If not the thread + * group accounting is not active either. Lockless check. + */ + if (!READ_ONCE(tsk->signal->posix_cputimers.timers_active)) return NULL; /* |