include/os/linux/spl/sys/trace_taskq.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 https://opensource.org/licenses/CDDL-1.0.
  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 #if defined(_KERNEL)
  23 #if defined(HAVE_DECLARE_EVENT_CLASS)
  24
  25 #undef TRACE_SYSTEM
  26 #define TRACE_SYSTEM zfs
  27
  28 #undef TRACE_SYSTEM_VAR
  29 #define TRACE_SYSTEM_VAR zfs_taskq
  30
  31 #if !defined(_TRACE_TASKQ_H) || defined(TRACE_HEADER_MULTI_READ)
  32 #define _TRACE_TASKQ_H
  33
  34 #include <linux/tracepoint.h>
  35 #include <sys/types.h>
  36
  37 /*
  38  * Generic support for single argument tracepoints of the form:
  39  *
  40  * DTRACE_PROBE1(...,
  41  *     taskq_ent_t *, ...);
  42  */
  43 DECLARE_EVENT_CLASS(zfs_taskq_ent_class,
  44     TP_PROTO(taskq_ent_t *taskq_ent),
  45     TP_ARGS(taskq_ent),
  46     TP_STRUCT__entry(__field(taskq_ent_t *, taskq_ent)),
  47     TP_fast_assign(
  48         __entry->taskq_ent = taskq_ent;
  49 ),
  50     TP_printk("taskq_ent %p", __entry->taskq_ent)
  51 );
  52
  53 #define DEFINE_TASKQ_EVENT(name) \
  54 DEFINE_EVENT(zfs_taskq_ent_class, name, \
  55     TP_PROTO(taskq_ent_t *taskq_ent), \
  56     TP_ARGS(taskq_ent))
  57 DEFINE_TASKQ_EVENT(zfs_taskq_ent__birth);
  58 DEFINE_TASKQ_EVENT(zfs_taskq_ent__start);
  59 DEFINE_TASKQ_EVENT(zfs_taskq_ent__finish);
  60
  61 #endif /* _TRACE_TASKQ_H */
  62
  63 #undef TRACE_INCLUDE_PATH
  64 #undef TRACE_INCLUDE_FILE
  65 #define TRACE_INCLUDE_PATH sys
  66 #define TRACE_INCLUDE_FILE trace_taskq
  67 #include <trace/define_trace.h>
  68
  69 #else
  70
  71 /*
  72  * When tracepoints are not available, a DEFINE_DTRACE_PROBE* macro is
  73  * needed for each DTRACE_PROBE.  These will be used to generate stub
  74  * tracing functions and prototypes for those functions.  See
  75  * include/os/linux/spl/sys/trace.h.
  76  */
  77
  78 DEFINE_DTRACE_PROBE1(taskq_ent__birth);
  79 DEFINE_DTRACE_PROBE1(taskq_ent__start);
  80 DEFINE_DTRACE_PROBE1(taskq_ent__finish);
  81
  82 #endif /* HAVE_DECLARE_EVENT_CLASS */
  83 #endif /* _KERNEL */