/usr/include/libzfs/sys/zfs_ratelimit.h is in libzfslinux-dev 0.7.5-1ubuntu15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /*
* 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;
unsigned int burst; /* Number to allow per interval */
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 */
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