/usr/include/libzfs/sys/trace_dmu.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_dmu
#if !defined(_TRACE_DMU_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_DMU_H
#include <linux/tracepoint.h>
#include <sys/types.h>
/*
* Generic support for three argument tracepoints of the form:
*
* DTRACE_PROBE3(...,
* dmu_tx_t *, ...,
* uint64_t, ...,
* uint64_t, ...);
*/
DECLARE_EVENT_CLASS(zfs_delay_mintime_class,
TP_PROTO(dmu_tx_t *tx, uint64_t dirty, uint64_t min_tx_time),
TP_ARGS(tx, dirty, min_tx_time),
TP_STRUCT__entry(
__field(uint64_t, tx_txg)
__field(uint64_t, tx_lastsnap_txg)
__field(uint64_t, tx_lasttried_txg)
__field(boolean_t, tx_anyobj)
__field(boolean_t, tx_waited)
__field(hrtime_t, tx_start)
__field(boolean_t, tx_wait_dirty)
__field(int, tx_err)
#ifdef DEBUG_DMU_TX
__field(uint64_t, tx_space_towrite)
__field(uint64_t, tx_space_tofree)
__field(uint64_t, tx_space_tooverwrite)
__field(uint64_t, tx_space_tounref)
__field(int64_t, tx_space_written)
__field(int64_t, tx_space_freed)
#endif
__field(uint64_t, min_tx_time)
__field(uint64_t, dirty)
),
TP_fast_assign(
__entry->tx_txg = tx->tx_txg;
__entry->tx_lastsnap_txg = tx->tx_lastsnap_txg;
__entry->tx_lasttried_txg = tx->tx_lasttried_txg;
__entry->tx_anyobj = tx->tx_anyobj;
__entry->tx_waited = tx->tx_waited;
__entry->tx_start = tx->tx_start;
__entry->tx_wait_dirty = tx->tx_wait_dirty;
__entry->tx_err = tx->tx_err;
#ifdef DEBUG_DMU_TX
__entry->tx_space_towrite = tx->tx_space_towrite;
__entry->tx_space_tofree = tx->tx_space_tofree;
__entry->tx_space_tooverwrite = tx->tx_space_tooverwrite;
__entry->tx_space_tounref = tx->tx_space_tounref;
__entry->tx_space_written = tx->tx_space_written.rc_count;
__entry->tx_space_freed = tx->tx_space_freed.rc_count;
#endif
__entry->dirty = dirty;
__entry->min_tx_time = min_tx_time;
),
TP_printk("tx { txg %llu lastsnap_txg %llu tx_lasttried_txg %llu "
"anyobj %d waited %d start %llu wait_dirty %d err %i "
#ifdef DEBUG_DMU_TX
"space_towrite %llu space_tofree %llu space_tooverwrite %llu "
"space_tounref %llu space_written %lli space_freed %lli "
#endif
"} dirty %llu min_tx_time %llu",
__entry->tx_txg, __entry->tx_lastsnap_txg,
__entry->tx_lasttried_txg, __entry->tx_anyobj, __entry->tx_waited,
__entry->tx_start, __entry->tx_wait_dirty, __entry->tx_err,
#ifdef DEBUG_DMU_TX
__entry->tx_space_towrite, __entry->tx_space_tofree,
__entry->tx_space_tooverwrite, __entry->tx_space_tounref,
__entry->tx_space_written, __entry->tx_space_freed,
#endif
__entry->dirty, __entry->min_tx_time)
);
#define DEFINE_DELAY_MINTIME_EVENT(name) \
DEFINE_EVENT(zfs_delay_mintime_class, name, \
TP_PROTO(dmu_tx_t *tx, uint64_t dirty, uint64_t min_tx_time), \
TP_ARGS(tx, dirty, min_tx_time))
DEFINE_DELAY_MINTIME_EVENT(zfs_delay__mintime);
#endif /* _TRACE_DMU_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH sys
#define TRACE_INCLUDE_FILE trace_dmu
#include <trace/define_trace.h>
#endif /* _KERNEL && HAVE_DECLARE_EVENT_CLASS */
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