This commit tests synchronize_rcu() and synchronize_rcu_expedited()
at the end of rcu_init(), in addition to the test already at the
beginning of that function. These tests are run only in kernels built
with CONFIG_PROVE_RCU=y.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
kernel/rcu/tree.c | 2 ++
kernel/rcu/update.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 15f9765064727..80b84ae285b41 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -4849,6 +4849,8 @@ void __init rcu_init(void)
// Kick-start any polled grace periods that started early.
if (!(per_cpu_ptr(&rcu_data, cpu)->mynode->exp_seq_poll_rq & 0x1))
(void)start_poll_synchronize_rcu_expedited();
+
+ rcu_test_sync_prims();
}
#include "tree_stall.h"
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index f5e6a2f95a2a0..587b97c401914 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -220,6 +220,7 @@ void rcu_test_sync_prims(void)
{
if (!IS_ENABLED(CONFIG_PROVE_RCU))
return;
+ pr_info("Running RCU synchronous self tests\n");
synchronize_rcu();
synchronize_rcu_expedited();
}
--
2.31.1.189.g2e36527f23
