include/os/linux/zfs/sys/trace_multilist.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_multilist
  30
  31 #if !defined(_TRACE_MULTILIST_H) || defined(TRACE_HEADER_MULTI_READ)
  32 #define _TRACE_MULTILIST_H
  33
  34 #include <linux/tracepoint.h>
  35 #include <sys/types.h>
  36
  37 /*
  38  * Generic support for three argument tracepoints of the form:
  39  *
  40  * DTRACE_PROBE3(...,
  41  *     multilist_t *, ...,
  42  *     unsigned int, ...,
  43  *     void *, ...);
  44  */
  45 /* BEGIN CSTYLED */
  46 DECLARE_EVENT_CLASS(zfs_multilist_insert_remove_class,
  47         TP_PROTO(multilist_t *ml, unsigned sublist_idx, void *obj),
  48         TP_ARGS(ml, sublist_idx, obj),
  49         TP_STRUCT__entry(
  50             __field(size_t,             ml_offset)
  51             __field(uint64_t,           ml_num_sublists)
  52
  53             __field(unsigned int,       sublist_idx)
  54         ),
  55         TP_fast_assign(
  56             __entry->ml_offset          = ml->ml_offset;
  57             __entry->ml_num_sublists    = ml->ml_num_sublists;
  58
  59             __entry->sublist_idx        = sublist_idx;
  60         ),
  61         TP_printk("ml { offset %ld numsublists %llu sublistidx %u } ",
  62             __entry->ml_offset, __entry->ml_num_sublists, __entry->sublist_idx)
  63 );
  64 /* END CSTYLED */
  65
  66 #define DEFINE_MULTILIST_INSERT_REMOVE_EVENT(name) \
  67 DEFINE_EVENT(zfs_multilist_insert_remove_class, name, \
  68     TP_PROTO(multilist_t *ml, unsigned int sublist_idx, void *obj), \
  69     TP_ARGS(ml, sublist_idx, obj))
  70 DEFINE_MULTILIST_INSERT_REMOVE_EVENT(zfs_multilist__insert);
  71 DEFINE_MULTILIST_INSERT_REMOVE_EVENT(zfs_multilist__remove);
  72
  73 #endif /* _TRACE_MULTILIST_H */
  74
  75 #undef TRACE_INCLUDE_PATH
  76 #undef TRACE_INCLUDE_FILE
  77 #define TRACE_INCLUDE_PATH sys
  78 #define TRACE_INCLUDE_FILE trace_multilist
  79 #include <trace/define_trace.h>
  80
  81 #else
  82
  83 DEFINE_DTRACE_PROBE3(multilist__insert);
  84 DEFINE_DTRACE_PROBE3(multilist__remove);
  85
  86 #endif /* HAVE_DECLARE_EVENT_CLASS */
  87 #endif /* _KERNEL */