/usr/include/libzfs/sys/trace_zrlock.h is in libzfslinux-dev 0.6.5.6-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
#if defined(_KERNEL) && defined(HAVE_DECLARE_EVENT_CLASS)
#undef TRACE_SYSTEM
#define TRACE_SYSTEM zfs
#undef TRACE_SYSTEM_VAR
#define TRACE_SYSTEM_VAR zfs_zrlock
#if !defined(_TRACE_ZRLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_ZRLOCK_H
#include <linux/tracepoint.h>
#include <sys/types.h>
/*
* Generic support for two argument tracepoints of the form:
*
* DTRACE_PROBE2(...,
* zrlock_t *, ...,
* uint32_t, ...);
*/
DECLARE_EVENT_CLASS(zfs_zrlock_class,
TP_PROTO(zrlock_t *zrl, uint32_t n),
TP_ARGS(zrl, n),
TP_STRUCT__entry(
__field(int32_t, refcount)
#ifdef ZFS_DEBUG
__field(pid_t, owner_pid)
__field(const char *, caller)
#endif
__field(uint32_t, n)
),
TP_fast_assign(
__entry->refcount = zrl->zr_refcount;
#ifdef ZFS_DEBUG
__entry->owner_pid = zrl->zr_owner ? zrl->zr_owner->pid : 0;
__entry->caller = zrl->zr_caller;
#endif
__entry->n = n;
),
#ifdef ZFS_DEBUG
TP_printk("zrl { refcount %d owner_pid %d caller %s } n %u",
__entry->refcount, __entry->owner_pid, __entry->caller,
__entry->n)
#else
TP_printk("zrl { refcount %d } n %u",
__entry->refcount, __entry->n)
#endif
);
#define DEFINE_ZRLOCK_EVENT(name) \
DEFINE_EVENT(zfs_zrlock_class, name, \
TP_PROTO(zrlock_t *zrl, uint32_t n), \
TP_ARGS(zrl, n))
DEFINE_ZRLOCK_EVENT(zfs_zrlock__reentry);
#endif /* _TRACE_ZRLOCK_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH sys
#define TRACE_INCLUDE_FILE trace_zrlock
#include <trace/define_trace.h>
#endif /* _KERNEL && HAVE_DECLARE_EVENT_CLASS */
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