| Dave Young | 717115e | 2008-07-25 01:45:58 -0700 | [diff] [blame] | 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 |