blob: 012825fadb223a7bd687c628b49eba0873f6b77b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2016, Lawrence Livermore National Security, LLC.
*/
#ifndef _SYS_ZFS_RATELIMIT_H
#define _SYS_ZFS_RATELIMIT_H
#include <sys/zfs_context.h>
typedef struct {
hrtime_t start;
unsigned int count;
/*
* Pointer to number of events per interval. We do this to
* allow the burst to be a (changeable) module parameter.
*/
unsigned int *burst;
unsigned int interval; /* Interval length in seconds */
kmutex_t lock;
} zfs_ratelimit_t;
int zfs_ratelimit(zfs_ratelimit_t *rl);
void zfs_ratelimit_init(zfs_ratelimit_t *rl, unsigned int *burst,
unsigned int interval);
void zfs_ratelimit_fini(zfs_ratelimit_t *rl);
#endif /* _SYS_ZFS_RATELIMIT_H */
|
