Re: [PATCH v3 3/3] rcu: Use _full() API to debug synchronize_rcu()

Uladzislau Rezki
2025-02-25T16:30:54Z

On Tue, Feb 25, 2025 at 07:48:55AM -0800, Paul E. McKenney wrote:
> On Tue, Feb 25, 2025 at 12:00:20PM +0100, Uladzislau Rezki (Sony) wrote:
> > Switch for using of get_state_synchronize_rcu_full() and
> > poll_state_synchronize_rcu_full() pair for debug a normal
> > synchronize_rcu() call.
> >
> > Just using "not" full APIs to identify if a grace period
> > is passed or not might lead to a false kernel splat.
> >
> > Link: https://lore.kernel.org/lkml/Z5ikQeVmVdsWQrdD@pc636/T/
> > Fixes: 988f569ae041 ("rcu: Reduce synchronize_rcu() latency")
> > Reported-by: cheung wall <zzqq0103.hey@gmail.com>
> > Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
>
> This one passes light testing, so:
>
> Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
>
Thank you!

--
Uladzislau Rezki