FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/zfs/sys/trace_multilist.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_multilist
    
    #if !defined(_TRACE_MULTILIST_H) || defined(TRACE_HEADER_MULTI_READ)
    #define _TRACE_MULTILIST_H
    
    #include <linux/tracepoint.h>
    #include <sys/types.h>
    
    /*
     * Generic support for three argument tracepoints of the form:
     *
     * DTRACE_PROBE3(...,
     *     multilist_t *, ...,
     *     unsigned int, ...,
     *     void *, ...);
     */
    /* BEGIN CSTYLED */
    DECLARE_EVENT_CLASS(zfs_multilist_insert_remove_class,
            TP_PROTO(multilist_t *ml, unsigned sublist_idx, void *obj),
            TP_ARGS(ml, sublist_idx, obj),
            TP_STRUCT__entry(
                __field(size_t,             ml_offset)
                __field(uint64_t,           ml_num_sublists)
    
                __field(unsigned int,       sublist_idx)
            ),
            TP_fast_assign(
                __entry->ml_offset          = ml->ml_offset;
                __entry->ml_num_sublists    = ml->ml_num_sublists;
    
                __entry->sublist_idx        = sublist_idx;
            ),
            TP_printk("ml { offset %ld numsublists %llu sublistidx %u } ",
                __entry->ml_offset, __entry->ml_num_sublists, __entry->sublist_idx)
    );
    /* END CSTYLED */
    
    #define DEFINE_MULTILIST_INSERT_REMOVE_EVENT(name) \
    DEFINE_EVENT(zfs_multilist_insert_remove_class, name, \
        TP_PROTO(multilist_t *ml, unsigned int sublist_idx, void *obj), \
        TP_ARGS(ml, sublist_idx, obj))
    DEFINE_MULTILIST_INSERT_REMOVE_EVENT(zfs_multilist__insert);
    DEFINE_MULTILIST_INSERT_REMOVE_EVENT(zfs_multilist__remove);
    
    #endif /* _TRACE_MULTILIST_H */
    
    #undef TRACE_INCLUDE_PATH
    #undef TRACE_INCLUDE_FILE
    #define TRACE_INCLUDE_PATH sys
    #define TRACE_INCLUDE_FILE trace_multilist
    #include <trace/define_trace.h>
    
    #else
    
    DEFINE_DTRACE_PROBE3(multilist__insert);
    DEFINE_DTRACE_PROBE3(multilist__remove);
    
    #endif /* HAVE_DECLARE_EVENT_CLASS */
    #endif /* _KERNEL */

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