[linux-block.git] / include / linux / ratelimit.h

#ifndef _LINUX_RATELIMIT_H
#define _LINUX_RATELIMIT_H
#include <linux/param.h>

#define DEFAULT_RATELIMIT_INTERVAL (5 * HZ)
#define DEFAULT_RATELIMIT_BURST 10

struct ratelimit_state {
	int interval;
	int burst;
	int printed;
	int missed;
	unsigned long begin;
};

#define DEFINE_RATELIMIT_STATE(name, interval, burst)		\
		struct ratelimit_state name = {interval, burst,}

extern int __ratelimit(struct ratelimit_state *rs);

static inline int ratelimit(void)
{
	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
					DEFAULT_RATELIMIT_BURST);
	return __ratelimit(&rs);
}
#endif
Commit	Line	Data
717115e1 DY	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