On 18/02/2020 12:21, Juergen Gross wrote:
> As rcu callbacks are processed in __do_softirq() there is no need to
> use the scheduling softirq for forcing quiescent state. Any other
> softirq would do the job and the scheduling one is the most expensive.
>
> So use the already existing rcu softirq for that purpose. For telling
> apart why the rcu softirq was raised add a flag for the current usage.
>
> Signed-off-by: Juergen Gross <jgr...@suse.com>

Acked-by: Andrew Cooper <andrew.coop...@citrix.com>

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