[PATCH] nptl: Provide a way to block all signals for the timer helper thread

[Carlos O'Donell]

On 5/12/20 11:02 AM, Florian Weimer wrote:
> timer_create needs to create threads with all signals blocked,
> including SIGTIMER (which happens to equal SIGCANCEL).  Add a new
> internal interface which provides an explicit way to achieve that.
> 
> Fixes commit b3cae39dcbfa2432b3f3aa28854d8ac57f0de1b8 ("nptl: Start
> new threads with all signals blocked [BZ #25098]").
> 
> Tested on x86_64-linux-gnu.

Overnight continuous tester showed no sporadic fails with tst-timer-sigmask.

Thanks again for fixing this quickly.

-- 
Cheers,
Carlos.