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 */
88