Re: [PATCH 4/4] posix-timers: turn it_signal into it_valid flag

[Oleg Nesterov]

On 09/04, Oleg Nesterov wrote:
>
> Although I
> feel this all can be simplified even more.

And perhaps we need some fixes?

I forgot everything I knew about ->it_requeue_pending logic, but it
seems to me that do_schedule_next_timer()->lock_timer() can find and
lock successfully the wrong timer. Another thread can do timer_delete()
and then re-create the timer with the same id.

Oleg.

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