Re: [PATCH v9 11/12] kthread: Allow to modify delayed kthread work

[Tejun Heo]

On Thu, Jun 16, 2016 at 01:17:30PM +0200, Petr Mladek wrote:
> There are situations when we need to modify the delay of a delayed kthread
> work. For example, when the work depends on an event and the initial delay
> means a timeout. Then we want to queue the work immediately when the event
> happens.
> 
> This patch implements kthread_mod_delayed_work() as inspired workqueues.
> It cancels the timer, removes the work from any worker list and queues it
> again with the given timeout.
> 
> A very special case is when the work is being canceled at the same time.
> It might happen because of the regular kthread_cancel_delayed_work_sync()
> or by another kthread_mod_delayed_work(). In this case, we do nothing and
> let the other operation win. This should not normally happen as the caller
> is supposed to synchronize these operations a reasonable way.
> 
> Signed-off-by: Petr Mladek <pmladek@xxxxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun