Re: [PATCH 7/7] RCU, workqueue: Implement rcu_work

[Tejun Heo]

Hello, Linus.

On Tue, Mar 06, 2018 at 10:30:29AM -0800, Linus Torvalds wrote:
>  - can we split this patch up, so that if somebody bisects a problem
> to it, we'll see if it's cgroup or aio that triggers it?

Will do.

> So I'd like to either just make the thing always just use
> WORK_CPU_UNBOUND, or hear some kind of (handwaving ok) explanation for
> why something else would ever make sense. If the action is
> fundamentally delayed by RCU, why would it make a difference which CPU
> it runs on?

It was mostly for consistency with other interfaces.  Let's drop
queue_work_on() for now.  If ever necessary, we can easily add it back
later.

Thanks.

-- 
tejun