FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/spl/sys/trace_taskq.h

     /*
      * 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 https://opensource.org/licenses/CDDL-1.0.
     * 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)
    #if defined(HAVE_DECLARE_EVENT_CLASS)
    
    #undef TRACE_SYSTEM
    #define TRACE_SYSTEM zfs
    
    #undef TRACE_SYSTEM_VAR
    #define TRACE_SYSTEM_VAR zfs_taskq
    
    #if !defined(_TRACE_TASKQ_H) || defined(TRACE_HEADER_MULTI_READ)
    #define _TRACE_TASKQ_H
    
    #include <linux/tracepoint.h>
    #include <sys/types.h>
    
    /*
     * Generic support for single argument tracepoints of the form:
     *
     * DTRACE_PROBE1(...,
     *     taskq_ent_t *, ...);
     */
    DECLARE_EVENT_CLASS(zfs_taskq_ent_class,
        TP_PROTO(taskq_ent_t *taskq_ent),
        TP_ARGS(taskq_ent),
        TP_STRUCT__entry(__field(taskq_ent_t *, taskq_ent)),
        TP_fast_assign(
            __entry->taskq_ent = taskq_ent;
    ),
        TP_printk("taskq_ent %p", __entry->taskq_ent)
    );
    
    #define DEFINE_TASKQ_EVENT(name) \
    DEFINE_EVENT(zfs_taskq_ent_class, name, \
        TP_PROTO(taskq_ent_t *taskq_ent), \
        TP_ARGS(taskq_ent))
    DEFINE_TASKQ_EVENT(zfs_taskq_ent__birth);
    DEFINE_TASKQ_EVENT(zfs_taskq_ent__start);
    DEFINE_TASKQ_EVENT(zfs_taskq_ent__finish);
    
    #endif /* _TRACE_TASKQ_H */
    
    #undef TRACE_INCLUDE_PATH
    #undef TRACE_INCLUDE_FILE
    #define TRACE_INCLUDE_PATH sys
    #define TRACE_INCLUDE_FILE trace_taskq
    #include <trace/define_trace.h>
    
    #else
    
    /*
     * When tracepoints are not available, a DEFINE_DTRACE_PROBE* macro is
     * needed for each DTRACE_PROBE.  These will be used to generate stub
     * tracing functions and prototypes for those functions.  See
     * include/os/linux/spl/sys/trace.h.
     */
    
    DEFINE_DTRACE_PROBE1(taskq_ent__birth);
    DEFINE_DTRACE_PROBE1(taskq_ent__start);
    DEFINE_DTRACE_PROBE1(taskq_ent__finish);
    
    #endif /* HAVE_DECLARE_EVENT_CLASS */
    #endif /* _KERNEL */

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