Re: [PATCH 2/2] random: spread out jitter callback to different CPUs

From: Jason A. Donenfeld
Date: Wed Oct 05 2022 - 17:08:42 EST

Hi Sebastian,

On Wed, Oct 05, 2022 at 07:26:42PM +0200, Sebastian Andrzej Siewior wrote:
> That del_timer_sync() at the end is what you want. If the timer is
> pending (as in enqueued in the timer wheel) then it will be removed
> before it is invoked. If the timer's callback is invoked then it will
> spin until the callback is done.

del_timer_sync() is not guaranteed to succeed with add_timer_on() being
used in conjunction with timer_pending() though. That's why I've
abandoned this.