On Mon, Dec 14, 2020 at 11:54:47PM +0800, Lai Jiangshan wrote:
> From: Lai Jiangshan <la...@linux.alibaba.com>
>
> 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 <hdan...@sina.com>.
> 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.ca...@redhat.com
Generally looks good to me. Please feel free to add
Acked-by: Tejun Heo <t...@kernel.org>
and route the series through tip.
Thanks.
--
tejun
