Hello, Paul!
> Currently "nfakewriters" parameter can be set to any value but
> there is no possibility to adjust it automatically based on how
> many CPUs a system has where a test is run on.
>
> To address this, if the "nfakewriters" is set to negative it will
> be adjusted to num_possible_cpus() during torture initialization.
>
> Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
> ---
> kernel/rcu/rcutorture.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
> index d26fb1d33ed9..6bc161e1e8ac 100644
> --- a/kernel/rcu/rcutorture.c
> +++ b/kernel/rcu/rcutorture.c
> @@ -4050,6 +4050,10 @@ rcu_torture_init(void)
> writer_task);
> if (torture_init_error(firsterr))
> goto unwind;
> +
> + if (nfakewriters < 0)
> + nfakewriters = (int) num_possible_cpus();
> +
> if (nfakewriters > 0) {
> fakewriter_tasks = kcalloc(nfakewriters,
> sizeof(fakewriter_tasks[0]),
> --
> 2.39.5
>
Don't you mind to take this as well? It is needed for:
rcu: Update TREE05.boot to test normal synchronize_rcu()
--
Uladzislau Rezki
