Messages in this thread | | | Date | Sun, 8 Jul 2007 15:16:25 +0400 | From | Oleg Nesterov <> | Subject | Re: schedule_timeout() called with state TASK_RUNNING from fs/select.c |
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Robert P. J. Day wrote: > > as i understand it, schedule_timeout() should always be called with > a current->state of TASK_INTERRUPTIBLE or TASK_UNINTERRUPTIBLE, no?
No.
Yes, it is pointless to call schedule() if it is known that ->state == TASK_RUNNING, but sometimes the task doesn't know its state when it calls schedule/schedule_timeout, the state could be changed by try_to_wake_up().
See wait_event_timeout() as an example.
Oleg.
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