1 #ifndef _LINUX_RATELIMIT_H 2 #define _LINUX_RATELIMIT_H 3 #include <linux/param.h> 4 5 #define DEFAULT_RATELIMIT_INTERVAL (5 * HZ) 6 #define DEFAULT_RATELIMIT_BURST 10 7 8 struct ratelimit_state { 9 int interval; 10 int burst; 11 int printed; 12 int missed; 13 unsigned long begin; 14 }; 15 16 #define DEFINE_RATELIMIT_STATE(name, interval, burst) \ 17 struct ratelimit_state name = {interval, burst,} 18 19 extern int __ratelimit(struct ratelimit_state *rs); 20 21 static inline int ratelimit(void) 22 { 23 static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL, 24 DEFAULT_RATELIMIT_BURST); 25 return __ratelimit(&rs); 26 } 27 #endif 28