On 09/02, Oleg Nesterov wrote:
>
> Small problem: unless I missed something, signalfd_deliver() and sys_signalfd()
> should use wake_up_all(), not wake_up() which implies nr_exclusive == 1.
>
> It is possible that we have multiple threads waiting on ->signalfd_wqh with
> the the different ->sigmask. In this case, the first woken thread can ignore
> the signal, we should wake up all of them.
Oops, sorry for noise. I forgot about WQ_FLAG_EXCLUSIVE, we don't set it by
default.
Oleg.
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