Messages in this thread | | | Date | Wed, 13 Jun 2012 21:02:55 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [RFC patch 2/5] smpboot: Provide infrastructure for percpu hotplug threads |
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On Wed, 13 Jun 2012, Paul E. McKenney wrote: > On Wed, Jun 13, 2012 at 11:00:54AM -0000, Thomas Gleixner wrote: > > /* Now call notifier in preparation. */ > > cpu_notify(CPU_ONLINE | mod, hcpu); > > + smpboot_unpark_threads(cpu); > > OK, RCU must use the lower-level interfaces, given that one of > then CPU_ONLINE notifiers might invoke synchronize_rcu().
We can start the threads before the notifiers. There is no restriction.
Thanks,
tglx
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