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mm: clean up mm_counter
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1#ifndef _LINUX_RATELIMIT_H
2#define _LINUX_RATELIMIT_H
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717115e1 4#include <linux/param.h>
979f693d 5#include <linux/spinlock_types.h>
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7#define DEFAULT_RATELIMIT_INTERVAL (5 * HZ)
8#define DEFAULT_RATELIMIT_BURST 10
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9
10struct ratelimit_state {
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11 spinlock_t lock; /* protect the state */
12
13 int interval;
14 int burst;
15 int printed;
16 int missed;
17 unsigned long begin;
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18};
19
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20#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init) \
21 \
22 struct ratelimit_state name = { \
23 .lock = __SPIN_LOCK_UNLOCKED(name.lock), \
24 .interval = interval_init, \
25 .burst = burst_init, \
26 }
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28extern int ___ratelimit(struct ratelimit_state *rs, const char *func);
29#define __ratelimit(state) ___ratelimit(state, __func__)
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30
31#endif /* _LINUX_RATELIMIT_H */