include/os/linux/zfs/sys/trace_zio.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 #include <sys/list.h>
  23
  24 #if defined(_KERNEL)
  25 #if defined(HAVE_DECLARE_EVENT_CLASS)
  26
  27 #undef TRACE_SYSTEM
  28 #define TRACE_SYSTEM zfs
  29
  30 #undef TRACE_SYSTEM_VAR
  31 #define TRACE_SYSTEM_VAR zfs_zio
  32
  33 #if !defined(_TRACE_ZIO_H) || defined(TRACE_HEADER_MULTI_READ)
  34 #define _TRACE_ZIO_H
  35
  36 #include <linux/tracepoint.h>
  37 #include <sys/types.h>
  38 #include <sys/trace_common.h> /* For ZIO macros */
  39
  40 /* BEGIN CSTYLED */
  41 TRACE_EVENT(zfs_zio__delay__miss,
  42         TP_PROTO(zio_t *zio, hrtime_t now),
  43         TP_ARGS(zio, now),
  44         TP_STRUCT__entry(
  45             ZIO_TP_STRUCT_ENTRY
  46             __field(hrtime_t, now)
  47         ),
  48         TP_fast_assign(
  49             ZIO_TP_FAST_ASSIGN
  50             __entry->now = now;
  51         ),
  52         TP_printk("now %llu " ZIO_TP_PRINTK_FMT, __entry->now,
  53             ZIO_TP_PRINTK_ARGS)
  54 );
  55
  56 TRACE_EVENT(zfs_zio__delay__hit,
  57         TP_PROTO(zio_t *zio, hrtime_t now, hrtime_t diff),
  58         TP_ARGS(zio, now, diff),
  59         TP_STRUCT__entry(
  60             ZIO_TP_STRUCT_ENTRY
  61             __field(hrtime_t, now)
  62             __field(hrtime_t, diff)
  63         ),
  64         TP_fast_assign(
  65             ZIO_TP_FAST_ASSIGN
  66             __entry->now = now;
  67             __entry->diff = diff;
  68         ),
  69         TP_printk("now %llu diff %llu " ZIO_TP_PRINTK_FMT, __entry->now,
  70             __entry->diff, ZIO_TP_PRINTK_ARGS)
  71 );
  72
  73 TRACE_EVENT(zfs_zio__delay__skip,
  74         TP_PROTO(zio_t *zio),
  75         TP_ARGS(zio),
  76         TP_STRUCT__entry(ZIO_TP_STRUCT_ENTRY),
  77         TP_fast_assign(ZIO_TP_FAST_ASSIGN),
  78         TP_printk(ZIO_TP_PRINTK_FMT, ZIO_TP_PRINTK_ARGS)
  79 );
  80 /* END CSTYLED */
  81
  82 #endif /* _TRACE_ZIO_H */
  83
  84 #undef TRACE_INCLUDE_PATH
  85 #undef TRACE_INCLUDE_FILE
  86 #define TRACE_INCLUDE_PATH sys
  87 #define TRACE_INCLUDE_FILE trace_zio
  88 #include <trace/define_trace.h>
  89
  90 #else
  91
  92 DEFINE_DTRACE_PROBE2(zio__delay__miss);
  93 DEFINE_DTRACE_PROBE3(zio__delay__hit);
  94 DEFINE_DTRACE_PROBE1(zio__delay__skip);
  95
  96 #endif /* HAVE_DECLARE_EVENT_CLASS */
  97 #endif /* _KERNEL */