Messages in this thread | | | Subject | Re: [RFC PATCH v1 3/5] KVM: Add paravirt kvm_flush_tlb_others | From | Peter Zijlstra <> | Date | Tue, 01 May 2012 16:59:13 +0200 |
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On Tue, 2012-05-01 at 15:12 +0300, Avi Kivity wrote: > local_irq_save() is a stronger version or rcu_read_lock()
Not so, local_irq_save() doesn't at all stop regular RCU grace periods, things like preemptible rcu can be driven from rcu_read_unlock().
Note that this is the reason call_rcu_sched() exists and is used in this case.
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