tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _LINUX_RATELIMIT_H
2#define _LINUX_RATELIMIT_H
3
4#include <linux/param.h>
5#include <linux/spinlock_types.h>
6
7#define DEFAULT_RATELIMIT_INTERVAL (5 * HZ)
8#define DEFAULT_RATELIMIT_BURST 10
9
10struct ratelimit_state {
11 spinlock_t lock; /* protect the state */
12
13 int interval;
14 int burst;
15 int printed;
16 int missed;
17 unsigned long begin;
18};
19
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 }
27
28extern int ___ratelimit(struct ratelimit_state *rs, const char *func);
29#define __ratelimit(state) ___ratelimit(state, __func__)
30
31#endif /* _LINUX_RATELIMIT_H */