printk_timed_ratelimit — caller-controlled printk ratelimiting
| bool printk_timed_ratelimit ( | unsigned long * caller_jiffies, | 
| unsigned int interval_msecs ); | 
   printk_timed_ratelimit returns true if more than interval_msecs
   milliseconds have elapsed since the last time printk_timed_ratelimit
   returned true.