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Diffstat (limited to 'include/sys/zfs_ratelimit.h')
| -rw-r--r-- | include/sys/zfs_ratelimit.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/sys/zfs_ratelimit.h b/include/sys/zfs_ratelimit.h new file mode 100644 index 000000000..b9f9f73dc --- /dev/null +++ b/include/sys/zfs_ratelimit.h @@ -0,0 +1,37 @@ +/* + * 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); + +#endif /* _SYS_ZFS_RATELIMIT_H */ |