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-rw-r--r--include/linux/rcupreempt.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h
index f04b64eca63..0967f03b070 100644
--- a/include/linux/rcupreempt.h
+++ b/include/linux/rcupreempt.h
@@ -115,16 +115,21 @@ DECLARE_PER_CPU(struct rcu_dyntick_sched, rcu_dyntick_sched);
static inline void rcu_enter_nohz(void)
{
+ static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1);
+
smp_mb(); /* CPUs seeing ++ must see prior RCU read-side crit sects */
__get_cpu_var(rcu_dyntick_sched).dynticks++;
- WARN_ON(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1);
+ WARN_ON_RATELIMIT(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1, &rs);
}
static inline void rcu_exit_nohz(void)
{
+ static DEFINE_RATELIMIT_STATE(rs, 10 * HZ, 1);
+
smp_mb(); /* CPUs seeing ++ must see later RCU read-side crit sects */
__get_cpu_var(rcu_dyntick_sched).dynticks++;
- WARN_ON(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1));
+ WARN_ON_RATELIMIT(!(__get_cpu_var(rcu_dyntick_sched).dynticks & 0x1),
+ &rs);
}
#else /* CONFIG_NO_HZ */