Re: [PATCH 00/10] workqueue: break affinity initiatively

[Tejun Heo]

On Mon, Dec 14, 2020 at 11:54:47PM +0800, Lai Jiangshan wrote:
> From: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx>
> 
> 06249738a41a ("workqueue: Manually break affinity on hotplug")
> said that scheduler will not force break affinity for us.
> 
> But workqueue highly depends on the old behavior. Many parts of the codes
> relies on it, 06249738a41a ("workqueue: Manually break affinity on hotplug")
> is not enough to change it, and the commit has flaws in itself too.
> 
> We need to thoroughly update the way workqueue handles affinity
> in cpu hot[un]plug, what is this patchset intends to do and
> replace the Valentin Schneider's patch [1].
> 
> Patch 1 fixes a flaw reported by Hillf Danton <hdanton@xxxxxxxx>.
> I have to include this fix because later patches depends on it.
> 
> The patchset is based on tip/master rather than workqueue tree,
> because the patchset is a complement for 06249738a41a ("workqueue:
> Manually break affinity on hotplug") which is only in tip/master by now.
> 
> [1]: https://lore.kernel.org/r/ff62e3ee994efb3620177bf7b19fab16f4866845.camel@xxxxxxxxxx

Generally looks good to me. Please feel free to add

 Acked-by: Tejun Heo <tj@xxxxxxxxxx>

and route the series through tip.

Thanks.

-- 
tejun