Re: [PATCH RFC] rcu/kfree: Do not request RCU when not needed

["Paul E. McKenney" <paulmck@xxxxxxxxxx>]

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