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
