Messages in this thread | | | Date | Wed, 2 Nov 2022 11:32:37 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH RFC] rcu/kfree: Do not request RCU when not needed |
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On Wed, Nov 02, 2022 at 06:30:24PM +0100, Uladzislau Rezki wrote: > > > > to wait for a GP. Or if the poll_state_synchronize_rcu(oldstate)) != 0 > > queue_rcu_work(). > > > A small fix. If poll_state_synchronize_rcu(oldstate)) == 0 then > queue_rcu_work() since a GP is still in progress.
Both get_state_synchronize_rcu() and poll_state_synchronize_rcu() may be invoked from interrupt handlers. And from NMI handlers, for that matter.
Thanx, Paul
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