On 06/24, Oleg Nesterov wrote: > Suppose that 2 threads T1 and T2 call __lock_page_killable() and sleep in > wait_on_page_bit_common() -> io_schedule(). > > T1 is killed, it does test_and_set_bit_lock() but the page is still locked. > > unlock_page() calls __wake_up_common(nr_exclusive = 1), this wakes T1 up. > T2 is not woken.
Ah, please ignore me, sorry for noise. If T1 is killed it is TASK_RUNNING, try_to_wake_up() should return 0. Oleg.
