projects / mirror_zfs-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| cae5b340 AX |
1 | /* |
| 2 | * CDDL HEADER START | |
| 3 | * | |
| 4 | * This file and its contents are supplied under the terms of the | |
| 5 | * Common Development and Distribution License ("CDDL"), version 1.0. | |
| 6 | * You may only use this file in accordance with the terms of version | |
| 7 | * 1.0 of the CDDL. | |
| 8 | * | |
| 9 | * A full copy of the text of the CDDL should have accompanied this | |
| 10 | * source. A copy of the CDDL is also available via the Internet at | |
| 11 | * http://www.illumos.org/license/CDDL. | |
| 12 | * | |
| 13 | * CDDL HEADER END | |
| 14 | */ | |
| 15 | ||
| 16 | /* | |
| 17 | * Copyright (c) 2016, Lawrence Livermore National Security, LLC. | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _SYS_ZFS_RATELIMIT_H | |
| 21 | #define _SYS_ZFS_RATELIMIT_H | |
| 22 | ||
| 23 | #include <sys/zfs_context.h> | |
| 24 | ||
| 25 | typedef struct { | |
| 26 | hrtime_t start; | |
| 27 | unsigned int count; | |
| 42f7b73b AX |
28 | |
| 29 | /* | |
| 30 | * Pointer to number of events per interval. We do this to | |
| 31 | * allow the burst to be a (changeable) module parameter. | |
| 32 | */ | |
| 33 | unsigned int *burst; | |
| 34 | ||
| 35 | unsigned int interval; /* Interval length in seconds */ | |
| cae5b340 AX |
36 | kmutex_t lock; |
| 37 | } zfs_ratelimit_t; | |
| 38 | ||
| 39 | int zfs_ratelimit(zfs_ratelimit_t *rl); | |
| 42f7b73b | 40 | void zfs_ratelimit_init(zfs_ratelimit_t *rl, unsigned int *burst, |
| cae5b340 AX |
41 | unsigned int interval); |
| 42 | void zfs_ratelimit_fini(zfs_ratelimit_t *rl); | |
| 43 | ||
| 44 | #endif /* _SYS_ZFS_RATELIMIT_H */ |