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Diffstat (limited to 'kernel/rcu/update.c')
-rw-r--r--kernel/rcu/update.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index fa089ead4bd6..f203b94f6b5b 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -468,6 +468,7 @@ int rcu_jiffies_till_stall_check(void)
}
return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
}
+EXPORT_SYMBOL_GPL(rcu_jiffies_till_stall_check);
void rcu_sysrq_start(void)
{
@@ -879,11 +880,16 @@ static void test_callback(struct rcu_head *r)
pr_info("RCU test callback executed %d\n", rcu_self_test_counter);
}
+DEFINE_STATIC_SRCU(early_srcu);
+
static void early_boot_test_call_rcu(void)
{
static struct rcu_head head;
+ static struct rcu_head shead;
call_rcu(&head, test_callback);
+ if (IS_ENABLED(CONFIG_SRCU))
+ call_srcu(&early_srcu, &shead, test_callback);
}
void rcu_early_boot_tests(void)
@@ -903,6 +909,10 @@ static int rcu_verify_early_boot_tests(void)
if (rcu_self_test) {
early_boot_test_counter++;
rcu_barrier();
+ if (IS_ENABLED(CONFIG_SRCU)) {
+ early_boot_test_counter++;
+ srcu_barrier(&early_srcu);
+ }
}
if (rcu_self_test_counter != early_boot_test_counter) {
WARN_ON(1);