On Thu, Nov 28, 2013 at 04:07:04PM +0100, Peter Zijlstra wrote:
> On Thu, Nov 28, 2013 at 10:02:10AM -0500, Tejun Heo wrote:
> > > So far I just see you breaking existing setups because you don't want to
> > > support things that work perfectly well.
> > 
> > It doesn't work as explained multiple times in this thread.
> 
> It used to.. just not on recent kernels. You know 'enterprise' latency.

If you're talking about khelfper and wanna restore it, it really
should be broken out into a separate kthread.  It doesn't make any
sense to implement that in the workqueue framework.  Why would you
implement a dedicated task inside a worker pool implementation which
makes use of the said tasks?  There's even kthread_work interface
which pretty much provides workqueue-equivalent interface on top of a
single task for cases like this.

-- 
tejun
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