Re: [RFC PATCH 7/8] workqueue: Remove the outer loop in maybe_create_worker()

[Tejun Heo]

On Thu, Aug 18, 2022 at 10:44:02PM +0800, Lai Jiangshan wrote:
> On Wed, Aug 17, 2022 at 6:08 AM Tejun Heo <tj@xxxxxxxxxx> wrote:
> >
> > On Thu, Aug 04, 2022 at 04:41:34PM +0800, Lai Jiangshan wrote:
> > > worker_thread() always does the recheck after getting the manager role,
> > > so the recheck in the maybe_create_worker() is unneeded and is removed.
> >
> > So, before if multiple workers need to be created, a single manager would
> > create them all. After, we'd end up daisy chaining, right? One manager
> > creates one worker and goes to process one work item. The new worker wakes
> > up and becomes the manager and creates another worker and so on. That
> > doesn't seem like a desirable behavior.
> >
> 
> The recheck is always in the same pool lock critical section, so the
> behavior isn't changed before/after this patch.

Ah, right you are.

Thanks.

-- 
tejun