/usr/include/libzfs/sys/trace_zio.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.
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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
*/
#include <sys/list.h>
#if defined(_KERNEL) && defined(HAVE_DECLARE_EVENT_CLASS)
#undef TRACE_SYSTEM
#define TRACE_SYSTEM zfs
#undef TRACE_SYSTEM_VAR
#define TRACE_SYSTEM_VAR zfs_zio
#if !defined(_TRACE_ZIO_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_ZIO_H
#include <linux/tracepoint.h>
#include <sys/types.h>
#include <sys/trace_common.h> /* For ZIO macros */
/* BEGIN CSTYLED */
TRACE_EVENT(zfs_zio__delay__miss,
TP_PROTO(zio_t *zio, hrtime_t now),
TP_ARGS(zio, now),
TP_STRUCT__entry(
ZIO_TP_STRUCT_ENTRY
__field(hrtime_t, now)
),
TP_fast_assign(
ZIO_TP_FAST_ASSIGN
__entry->now = now;
),
TP_printk("now %llu " ZIO_TP_PRINTK_FMT, __entry->now,
ZIO_TP_PRINTK_ARGS)
);
TRACE_EVENT(zfs_zio__delay__hit,
TP_PROTO(zio_t *zio, hrtime_t now, hrtime_t diff),
TP_ARGS(zio, now, diff),
TP_STRUCT__entry(
ZIO_TP_STRUCT_ENTRY
__field(hrtime_t, now)
__field(hrtime_t, diff)
),
TP_fast_assign(
ZIO_TP_FAST_ASSIGN
__entry->now = now;
__entry->diff = diff;
),
TP_printk("now %llu diff %llu " ZIO_TP_PRINTK_FMT, __entry->now,
__entry->diff, ZIO_TP_PRINTK_ARGS)
);
TRACE_EVENT(zfs_zio__delay__skip,
TP_PROTO(zio_t *zio),
TP_ARGS(zio),
TP_STRUCT__entry(ZIO_TP_STRUCT_ENTRY),
TP_fast_assign(ZIO_TP_FAST_ASSIGN),
TP_printk(ZIO_TP_PRINTK_FMT, ZIO_TP_PRINTK_ARGS)
);
/* END CSTYLED */
#endif /* _TRACE_ZIO_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH sys
#define TRACE_INCLUDE_FILE trace_zio
#include <trace/define_trace.h>
#endif /* _KERNEL && HAVE_DECLARE_EVENT_CLASS */
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