Messages in this thread | | | Date | Tue, 5 Sep 2017 09:15:40 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH] IRQ, cpu-hotplug: Fix a race between CPU hotplug and IRQ desc alloc/free |
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On Tue, 5 Sep 2017, Huang, Ying wrote: > Thomas Gleixner <tglx@linutronix.de> writes: > > + /* Interrupts are moved away from the dying cpu, reenable alloc/free */ > > + irq_unlock_sparse(); > > + > > I don't understand this. It appears that irq_migrate_all_off_this_cpu() > is called in take_cpu_down() which has sparse_irq_lock held already.
You're right. I was looking at the wrong place.
Thanks,
tglx
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