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-rw-r--r--include/linux/ftrace_event.h82
-rw-r--r--include/linux/syscalls.h57
-rw-r--r--include/linux/tracepoint.h98
-rw-r--r--include/trace/ftrace.h239
-rw-r--r--include/trace/syscall.h10
-rw-r--r--kernel/trace/blktrace.c138
-rw-r--r--kernel/trace/ftrace.c7
-rw-r--r--kernel/trace/kmemtrace.c70
-rw-r--r--kernel/trace/trace.c9
-rw-r--r--kernel/trace/trace.h9
-rw-r--r--kernel/trace/trace_branch.c8
-rw-r--r--kernel/trace/trace_event_perf.c18
-rw-r--r--kernel/trace/trace_events.c139
-rw-r--r--kernel/trace/trace_events_filter.c28
-rw-r--r--kernel/trace/trace_export.c16
-rw-r--r--kernel/trace/trace_functions_graph.c13
-rw-r--r--kernel/trace/trace_kprobe.c102
-rw-r--r--kernel/trace/trace_output.c137
-rw-r--r--kernel/trace/trace_output.h2
-rw-r--r--kernel/trace/trace_sched_switch.c20
-rw-r--r--kernel/trace/trace_sched_wakeup.c28
-rw-r--r--kernel/trace/trace_syscalls.c135
-rw-r--r--kernel/trace/trace_workqueue.c26
-rw-r--r--kernel/tracepoint.c91
-rw-r--r--net/core/drop_monitor.c12
-rw-r--r--samples/tracepoints/tp-samples-trace.h4
-rw-r--r--samples/tracepoints/tracepoint-probe-sample.c13
-rw-r--r--samples/tracepoints/tracepoint-probe-sample2.c7
28 files changed, 907 insertions, 611 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 7024b7d1126f..ee8a8411b055 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -70,18 +70,25 @@ struct trace_iterator {
70}; 70};
71 71
72 72
73struct trace_event;
74
73typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter, 75typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter,
74 int flags); 76 int flags, struct trace_event *event);
75struct trace_event { 77
76 struct hlist_node node; 78struct trace_event_functions {
77 struct list_head list;
78 int type;
79 trace_print_func trace; 79 trace_print_func trace;
80 trace_print_func raw; 80 trace_print_func raw;
81 trace_print_func hex; 81 trace_print_func hex;
82 trace_print_func binary; 82 trace_print_func binary;
83}; 83};
84 84
85struct trace_event {
86 struct hlist_node node;
87 struct list_head list;
88 int type;
89 struct trace_event_functions *funcs;
90};
91
85extern int register_ftrace_event(struct trace_event *event); 92extern int register_ftrace_event(struct trace_event *event);
86extern int unregister_ftrace_event(struct trace_event *event); 93extern int unregister_ftrace_event(struct trace_event *event);
87 94
@@ -113,29 +120,70 @@ void tracing_record_cmdline(struct task_struct *tsk);
113 120
114struct event_filter; 121struct event_filter;
115 122
123enum trace_reg {
124 TRACE_REG_REGISTER,
125 TRACE_REG_UNREGISTER,
126 TRACE_REG_PERF_REGISTER,
127 TRACE_REG_PERF_UNREGISTER,
128};
129
130struct ftrace_event_call;
131
132struct ftrace_event_class {
133 char *system;
134 void *probe;
135#ifdef CONFIG_PERF_EVENTS
136 void *perf_probe;
137#endif
138 int (*reg)(struct ftrace_event_call *event,
139 enum trace_reg type);
140 int (*define_fields)(struct ftrace_event_call *);
141 struct list_head *(*get_fields)(struct ftrace_event_call *);
142 struct list_head fields;
143 int (*raw_init)(struct ftrace_event_call *);
144};
145
146enum {
147 TRACE_EVENT_FL_ENABLED_BIT,
148 TRACE_EVENT_FL_FILTERED_BIT,
149};
150
151enum {
152 TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
153 TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
154};
155
116struct ftrace_event_call { 156struct ftrace_event_call {
117 struct list_head list; 157 struct list_head list;
158 struct ftrace_event_class *class;
118 char *name; 159 char *name;
119 char *system;
120 struct dentry *dir; 160 struct dentry *dir;
121 struct trace_event *event; 161 struct trace_event event;
122 int enabled;
123 int (*regfunc)(struct ftrace_event_call *);
124 void (*unregfunc)(struct ftrace_event_call *);
125 int id;
126 const char *print_fmt; 162 const char *print_fmt;
127 int (*raw_init)(struct ftrace_event_call *);
128 int (*define_fields)(struct ftrace_event_call *);
129 struct list_head fields;
130 int filter_active;
131 struct event_filter *filter; 163 struct event_filter *filter;
132 void *mod; 164 void *mod;
133 void *data; 165 void *data;
134 166
167 /*
168 * 32 bit flags:
169 * bit 1: enabled
170 * bit 2: filter_active
171 *
172 * Changes to flags must hold the event_mutex.
173 *
174 * Note: Reads of flags do not hold the event_mutex since
175 * they occur in critical sections. But the way flags
176 * is currently used, these changes do no affect the code
177 * except that when a change is made, it may have a slight
178 * delay in propagating the changes to other CPUs due to
179 * caching and such.
180 */
181 unsigned int flags;
182
183#ifdef CONFIG_PERF_EVENTS
135 int perf_refcount; 184 int perf_refcount;
136 struct hlist_head *perf_events; 185 struct hlist_head *perf_events;
137 int (*perf_event_enable)(struct ftrace_event_call *); 186#endif
138 void (*perf_event_disable)(struct ftrace_event_call *);
139}; 187};
140 188
141#define PERF_MAX_TRACE_SIZE 2048 189#define PERF_MAX_TRACE_SIZE 2048
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 057929b0a651..a1a86a53bc73 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -103,22 +103,6 @@ struct perf_event_attr;
103#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__) 103#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
104#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__) 104#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
105 105
106#ifdef CONFIG_PERF_EVENTS
107
108#define TRACE_SYS_ENTER_PERF_INIT(sname) \
109 .perf_event_enable = perf_sysenter_enable, \
110 .perf_event_disable = perf_sysenter_disable,
111
112#define TRACE_SYS_EXIT_PERF_INIT(sname) \
113 .perf_event_enable = perf_sysexit_enable, \
114 .perf_event_disable = perf_sysexit_disable,
115#else
116#define TRACE_SYS_ENTER_PERF(sname)
117#define TRACE_SYS_ENTER_PERF_INIT(sname)
118#define TRACE_SYS_EXIT_PERF(sname)
119#define TRACE_SYS_EXIT_PERF_INIT(sname)
120#endif /* CONFIG_PERF_EVENTS */
121
122#ifdef CONFIG_FTRACE_SYSCALLS 106#ifdef CONFIG_FTRACE_SYSCALLS
123#define __SC_STR_ADECL1(t, a) #a 107#define __SC_STR_ADECL1(t, a) #a
124#define __SC_STR_ADECL2(t, a, ...) #a, __SC_STR_ADECL1(__VA_ARGS__) 108#define __SC_STR_ADECL2(t, a, ...) #a, __SC_STR_ADECL1(__VA_ARGS__)
@@ -134,54 +118,43 @@ struct perf_event_attr;
134#define __SC_STR_TDECL5(t, a, ...) #t, __SC_STR_TDECL4(__VA_ARGS__) 118#define __SC_STR_TDECL5(t, a, ...) #t, __SC_STR_TDECL4(__VA_ARGS__)
135#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__) 119#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__)
136 120
121extern struct ftrace_event_class event_class_syscall_enter;
122extern struct ftrace_event_class event_class_syscall_exit;
123extern struct trace_event_functions enter_syscall_print_funcs;
124extern struct trace_event_functions exit_syscall_print_funcs;
125
137#define SYSCALL_TRACE_ENTER_EVENT(sname) \ 126#define SYSCALL_TRACE_ENTER_EVENT(sname) \
138 static const struct syscall_metadata __syscall_meta_##sname; \ 127 static struct syscall_metadata __syscall_meta_##sname; \
139 static struct ftrace_event_call \ 128 static struct ftrace_event_call \
140 __attribute__((__aligned__(4))) event_enter_##sname; \ 129 __attribute__((__aligned__(4))) event_enter_##sname; \
141 static struct trace_event enter_syscall_print_##sname = { \
142 .trace = print_syscall_enter, \
143 }; \
144 static struct ftrace_event_call __used \ 130 static struct ftrace_event_call __used \
145 __attribute__((__aligned__(4))) \ 131 __attribute__((__aligned__(4))) \
146 __attribute__((section("_ftrace_events"))) \ 132 __attribute__((section("_ftrace_events"))) \
147 event_enter_##sname = { \ 133 event_enter_##sname = { \
148 .name = "sys_enter"#sname, \ 134 .name = "sys_enter"#sname, \
149 .system = "syscalls", \ 135 .class = &event_class_syscall_enter, \
150 .event = &enter_syscall_print_##sname, \ 136 .event.funcs = &enter_syscall_print_funcs, \
151 .raw_init = init_syscall_trace, \
152 .define_fields = syscall_enter_define_fields, \
153 .regfunc = reg_event_syscall_enter, \
154 .unregfunc = unreg_event_syscall_enter, \
155 .data = (void *)&__syscall_meta_##sname,\ 137 .data = (void *)&__syscall_meta_##sname,\
156 TRACE_SYS_ENTER_PERF_INIT(sname) \
157 } 138 }
158 139
159#define SYSCALL_TRACE_EXIT_EVENT(sname) \ 140#define SYSCALL_TRACE_EXIT_EVENT(sname) \
160 static const struct syscall_metadata __syscall_meta_##sname; \ 141 static struct syscall_metadata __syscall_meta_##sname; \
161 static struct ftrace_event_call \ 142 static struct ftrace_event_call \
162 __attribute__((__aligned__(4))) event_exit_##sname; \ 143 __attribute__((__aligned__(4))) event_exit_##sname; \
163 static struct trace_event exit_syscall_print_##sname = { \
164 .trace = print_syscall_exit, \
165 }; \
166 static struct ftrace_event_call __used \ 144 static struct ftrace_event_call __used \
167 __attribute__((__aligned__(4))) \ 145 __attribute__((__aligned__(4))) \
168 __attribute__((section("_ftrace_events"))) \ 146 __attribute__((section("_ftrace_events"))) \
169 event_exit_##sname = { \ 147 event_exit_##sname = { \
170 .name = "sys_exit"#sname, \ 148 .name = "sys_exit"#sname, \
171 .system = "syscalls", \ 149 .class = &event_class_syscall_exit, \
172 .event = &exit_syscall_print_##sname, \ 150 .event.funcs = &exit_syscall_print_funcs, \
173 .raw_init = init_syscall_trace, \
174 .define_fields = syscall_exit_define_fields, \
175 .regfunc = reg_event_syscall_exit, \
176 .unregfunc = unreg_event_syscall_exit, \
177 .data = (void *)&__syscall_meta_##sname,\ 151 .data = (void *)&__syscall_meta_##sname,\
178 TRACE_SYS_EXIT_PERF_INIT(sname) \
179 } 152 }
180 153
181#define SYSCALL_METADATA(sname, nb) \ 154#define SYSCALL_METADATA(sname, nb) \
182 SYSCALL_TRACE_ENTER_EVENT(sname); \ 155 SYSCALL_TRACE_ENTER_EVENT(sname); \
183 SYSCALL_TRACE_EXIT_EVENT(sname); \ 156 SYSCALL_TRACE_EXIT_EVENT(sname); \
184 static const struct syscall_metadata __used \ 157 static struct syscall_metadata __used \
185 __attribute__((__aligned__(4))) \ 158 __attribute__((__aligned__(4))) \
186 __attribute__((section("__syscalls_metadata"))) \ 159 __attribute__((section("__syscalls_metadata"))) \
187 __syscall_meta_##sname = { \ 160 __syscall_meta_##sname = { \
@@ -191,12 +164,14 @@ struct perf_event_attr;
191 .args = args_##sname, \ 164 .args = args_##sname, \
192 .enter_event = &event_enter_##sname, \ 165 .enter_event = &event_enter_##sname, \
193 .exit_event = &event_exit_##sname, \ 166 .exit_event = &event_exit_##sname, \
167 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
168 .exit_fields = LIST_HEAD_INIT(__syscall_meta_##sname.exit_fields), \
194 }; 169 };
195 170
196#define SYSCALL_DEFINE0(sname) \ 171#define SYSCALL_DEFINE0(sname) \
197 SYSCALL_TRACE_ENTER_EVENT(_##sname); \ 172 SYSCALL_TRACE_ENTER_EVENT(_##sname); \
198 SYSCALL_TRACE_EXIT_EVENT(_##sname); \ 173 SYSCALL_TRACE_EXIT_EVENT(_##sname); \
199 static const struct syscall_metadata __used \ 174 static struct syscall_metadata __used \
200 __attribute__((__aligned__(4))) \ 175 __attribute__((__aligned__(4))) \
201 __attribute__((section("__syscalls_metadata"))) \ 176 __attribute__((section("__syscalls_metadata"))) \
202 __syscall_meta__##sname = { \ 177 __syscall_meta__##sname = { \
@@ -204,6 +179,8 @@ struct perf_event_attr;
204 .nb_args = 0, \ 179 .nb_args = 0, \
205 .enter_event = &event_enter__##sname, \ 180 .enter_event = &event_enter__##sname, \
206 .exit_event = &event_exit__##sname, \ 181 .exit_event = &event_exit__##sname, \
182 .enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
183 .exit_fields = LIST_HEAD_INIT(__syscall_meta__##sname.exit_fields), \
207 }; \ 184 }; \
208 asmlinkage long sys_##sname(void) 185 asmlinkage long sys_##sname(void)
209#else 186#else
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 1d85f9a6a199..9a59d1f98cd4 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -20,12 +20,17 @@
20struct module; 20struct module;
21struct tracepoint; 21struct tracepoint;
22 22
23struct tracepoint_func {
24 void *func;
25 void *data;
26};
27
23struct tracepoint { 28struct tracepoint {
24 const char *name; /* Tracepoint name */ 29 const char *name; /* Tracepoint name */
25 int state; /* State. */ 30 int state; /* State. */
26 void (*regfunc)(void); 31 void (*regfunc)(void);
27 void (*unregfunc)(void); 32 void (*unregfunc)(void);
28 void **funcs; 33 struct tracepoint_func *funcs;
29} __attribute__((aligned(32))); /* 34} __attribute__((aligned(32))); /*
30 * Aligned on 32 bytes because it is 35 * Aligned on 32 bytes because it is
31 * globally visible and gcc happily 36 * globally visible and gcc happily
@@ -37,16 +42,19 @@ struct tracepoint {
37 * Connect a probe to a tracepoint. 42 * Connect a probe to a tracepoint.
38 * Internal API, should not be used directly. 43 * Internal API, should not be used directly.
39 */ 44 */
40extern int tracepoint_probe_register(const char *name, void *probe); 45extern int tracepoint_probe_register(const char *name, void *probe, void *data);
41 46
42/* 47/*
43 * Disconnect a probe from a tracepoint. 48 * Disconnect a probe from a tracepoint.
44 * Internal API, should not be used directly. 49 * Internal API, should not be used directly.
45 */ 50 */
46extern int tracepoint_probe_unregister(const char *name, void *probe); 51extern int
52tracepoint_probe_unregister(const char *name, void *probe, void *data);
47 53
48extern int tracepoint_probe_register_noupdate(const char *name, void *probe); 54extern int tracepoint_probe_register_noupdate(const char *name, void *probe,
49extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe); 55 void *data);
56extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe,
57 void *data);
50extern void tracepoint_probe_update_all(void); 58extern void tracepoint_probe_update_all(void);
51 59
52struct tracepoint_iter { 60struct tracepoint_iter {
@@ -102,17 +110,27 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin,
102/* 110/*
103 * it_func[0] is never NULL because there is at least one element in the array 111 * it_func[0] is never NULL because there is at least one element in the array
104 * when the array itself is non NULL. 112 * when the array itself is non NULL.
113 *
114 * Note, the proto and args passed in includes "__data" as the first parameter.
115 * The reason for this is to handle the "void" prototype. If a tracepoint
116 * has a "void" prototype, then it is invalid to declare a function
117 * as "(void *, void)". The DECLARE_TRACE_NOARGS() will pass in just
118 * "void *data", where as the DECLARE_TRACE() will pass in "void *data, proto".
105 */ 119 */
106#define __DO_TRACE(tp, proto, args) \ 120#define __DO_TRACE(tp, proto, args) \
107 do { \ 121 do { \
108 void **it_func; \ 122 struct tracepoint_func *it_func_ptr; \
123 void *it_func; \
124 void *__data; \
109 \ 125 \
110 rcu_read_lock_sched_notrace(); \ 126 rcu_read_lock_sched_notrace(); \
111 it_func = rcu_dereference_sched((tp)->funcs); \ 127 it_func_ptr = rcu_dereference_sched((tp)->funcs); \
112 if (it_func) { \ 128 if (it_func_ptr) { \
113 do { \ 129 do { \
114 ((void(*)(proto))(*it_func))(args); \ 130 it_func = (it_func_ptr)->func; \
115 } while (*(++it_func)); \ 131 __data = (it_func_ptr)->data; \
132 ((void(*)(proto))(it_func))(args); \
133 } while ((++it_func_ptr)->func); \
116 } \ 134 } \
117 rcu_read_unlock_sched_notrace(); \ 135 rcu_read_unlock_sched_notrace(); \
118 } while (0) 136 } while (0)
@@ -122,24 +140,32 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin,
122 * not add unwanted padding between the beginning of the section and the 140 * not add unwanted padding between the beginning of the section and the
123 * structure. Force alignment to the same alignment as the section start. 141 * structure. Force alignment to the same alignment as the section start.
124 */ 142 */
125#define DECLARE_TRACE(name, proto, args) \ 143#define __DECLARE_TRACE(name, proto, args, data_proto, data_args) \
126 extern struct tracepoint __tracepoint_##name; \ 144 extern struct tracepoint __tracepoint_##name; \
127 static inline void trace_##name(proto) \ 145 static inline void trace_##name(proto) \
128 { \ 146 { \
129 if (unlikely(__tracepoint_##name.state)) \ 147 if (unlikely(__tracepoint_##name.state)) \
130 __DO_TRACE(&__tracepoint_##name, \ 148 __DO_TRACE(&__tracepoint_##name, \
131 TP_PROTO(proto), TP_ARGS(args)); \ 149 TP_PROTO(data_proto), \
150 TP_ARGS(data_args)); \
151 } \
152 static inline int \
153 register_trace_##name(void (*probe)(data_proto), void *data) \
154 { \
155 return tracepoint_probe_register(#name, (void *)probe, \
156 data); \
132 } \ 157 } \
133 static inline int register_trace_##name(void (*probe)(proto)) \ 158 static inline int \
159 unregister_trace_##name(void (*probe)(data_proto), void *data) \
134 { \ 160 { \
135 return tracepoint_probe_register(#name, (void *)probe); \ 161 return tracepoint_probe_unregister(#name, (void *)probe, \
162 data); \
136 } \ 163 } \
137 static inline int unregister_trace_##name(void (*probe)(proto)) \ 164 static inline void \
165 check_trace_callback_type_##name(void (*cb)(data_proto)) \
138 { \ 166 { \
139 return tracepoint_probe_unregister(#name, (void *)probe);\
140 } 167 }
141 168
142
143#define DEFINE_TRACE_FN(name, reg, unreg) \ 169#define DEFINE_TRACE_FN(name, reg, unreg) \
144 static const char __tpstrtab_##name[] \ 170 static const char __tpstrtab_##name[] \
145 __attribute__((section("__tracepoints_strings"))) = #name; \ 171 __attribute__((section("__tracepoints_strings"))) = #name; \
@@ -156,18 +182,23 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin,
156 EXPORT_SYMBOL(__tracepoint_##name) 182 EXPORT_SYMBOL(__tracepoint_##name)
157 183
158#else /* !CONFIG_TRACEPOINTS */ 184#else /* !CONFIG_TRACEPOINTS */
159#define DECLARE_TRACE(name, proto, args) \ 185#define __DECLARE_TRACE(name, proto, args, data_proto, data_args) \
160 static inline void _do_trace_##name(struct tracepoint *tp, proto) \
161 { } \
162 static inline void trace_##name(proto) \ 186 static inline void trace_##name(proto) \
163 { } \ 187 { } \
164 static inline int register_trace_##name(void (*probe)(proto)) \ 188 static inline int \
189 register_trace_##name(void (*probe)(data_proto), \
190 void *data) \
165 { \ 191 { \
166 return -ENOSYS; \ 192 return -ENOSYS; \
167 } \ 193 } \
168 static inline int unregister_trace_##name(void (*probe)(proto)) \ 194 static inline int \
195 unregister_trace_##name(void (*probe)(data_proto), \
196 void *data) \
169 { \ 197 { \
170 return -ENOSYS; \ 198 return -ENOSYS; \
199 } \
200 static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \
201 { \
171 } 202 }
172 203
173#define DEFINE_TRACE_FN(name, reg, unreg) 204#define DEFINE_TRACE_FN(name, reg, unreg)
@@ -176,6 +207,29 @@ static inline void tracepoint_update_probe_range(struct tracepoint *begin,
176#define EXPORT_TRACEPOINT_SYMBOL(name) 207#define EXPORT_TRACEPOINT_SYMBOL(name)
177 208
178#endif /* CONFIG_TRACEPOINTS */ 209#endif /* CONFIG_TRACEPOINTS */
210
211/*
212 * The need for the DECLARE_TRACE_NOARGS() is to handle the prototype
213 * (void). "void" is a special value in a function prototype and can
214 * not be combined with other arguments. Since the DECLARE_TRACE()
215 * macro adds a data element at the beginning of the prototype,
216 * we need a way to differentiate "(void *data, proto)" from
217 * "(void *data, void)". The second prototype is invalid.
218 *
219 * DECLARE_TRACE_NOARGS() passes "void" as the tracepoint prototype
220 * and "void *__data" as the callback prototype.
221 *
222 * DECLARE_TRACE() passes "proto" as the tracepoint protoype and
223 * "void *__data, proto" as the callback prototype.
224 */
225#define DECLARE_TRACE_NOARGS(name) \
226 __DECLARE_TRACE(name, void, , void *__data, __data)
227
228#define DECLARE_TRACE(name, proto, args) \
229 __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
230 PARAMS(void *__data, proto), \
231 PARAMS(__data, args))
232
179#endif /* DECLARE_TRACE */ 233#endif /* DECLARE_TRACE */
180 234
181#ifndef TRACE_EVENT 235#ifndef TRACE_EVENT
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 4eb2148f1321..0152b8673bd7 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -62,7 +62,10 @@
62 struct trace_entry ent; \ 62 struct trace_entry ent; \
63 tstruct \ 63 tstruct \
64 char __data[0]; \ 64 char __data[0]; \
65 }; 65 }; \
66 \
67 static struct ftrace_event_class event_class_##name;
68
66#undef DEFINE_EVENT 69#undef DEFINE_EVENT
67#define DEFINE_EVENT(template, name, proto, args) \ 70#define DEFINE_EVENT(template, name, proto, args) \
68 static struct ftrace_event_call \ 71 static struct ftrace_event_call \
@@ -147,7 +150,7 @@
147 * 150 *
148 * entry = iter->ent; 151 * entry = iter->ent;
149 * 152 *
150 * if (entry->type != event_<call>.id) { 153 * if (entry->type != event_<call>->event.type) {
151 * WARN_ON_ONCE(1); 154 * WARN_ON_ONCE(1);
152 * return TRACE_TYPE_UNHANDLED; 155 * return TRACE_TYPE_UNHANDLED;
153 * } 156 * }
@@ -203,18 +206,22 @@
203#undef DECLARE_EVENT_CLASS 206#undef DECLARE_EVENT_CLASS
204#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ 207#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
205static notrace enum print_line_t \ 208static notrace enum print_line_t \
206ftrace_raw_output_id_##call(int event_id, const char *name, \ 209ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
207 struct trace_iterator *iter, int flags) \ 210 struct trace_event *trace_event) \
208{ \ 211{ \
212 struct ftrace_event_call *event; \
209 struct trace_seq *s = &iter->seq; \ 213 struct trace_seq *s = &iter->seq; \
210 struct ftrace_raw_##call *field; \ 214 struct ftrace_raw_##call *field; \
211 struct trace_entry *entry; \ 215 struct trace_entry *entry; \
212 struct trace_seq *p; \ 216 struct trace_seq *p; \
213 int ret; \ 217 int ret; \
214 \ 218 \
219 event = container_of(trace_event, struct ftrace_event_call, \
220 event); \
221 \
215 entry = iter->ent; \ 222 entry = iter->ent; \
216 \ 223 \
217 if (entry->type != event_id) { \ 224 if (entry->type != event->event.type) { \
218 WARN_ON_ONCE(1); \ 225 WARN_ON_ONCE(1); \
219 return TRACE_TYPE_UNHANDLED; \ 226 return TRACE_TYPE_UNHANDLED; \
220 } \ 227 } \
@@ -223,7 +230,7 @@ ftrace_raw_output_id_##call(int event_id, const char *name, \
223 \ 230 \
224 p = &get_cpu_var(ftrace_event_seq); \ 231 p = &get_cpu_var(ftrace_event_seq); \
225 trace_seq_init(p); \ 232 trace_seq_init(p); \
226 ret = trace_seq_printf(s, "%s: ", name); \ 233 ret = trace_seq_printf(s, "%s: ", event->name); \
227 if (ret) \ 234 if (ret) \
228 ret = trace_seq_printf(s, print); \ 235 ret = trace_seq_printf(s, print); \
229 put_cpu(); \ 236 put_cpu(); \
@@ -231,21 +238,16 @@ ftrace_raw_output_id_##call(int event_id, const char *name, \
231 return TRACE_TYPE_PARTIAL_LINE; \ 238 return TRACE_TYPE_PARTIAL_LINE; \
232 \ 239 \
233 return TRACE_TYPE_HANDLED; \ 240 return TRACE_TYPE_HANDLED; \
234} 241} \
235 242static struct trace_event_functions ftrace_event_type_funcs_##call = { \
236#undef DEFINE_EVENT 243 .trace = ftrace_raw_output_##call, \
237#define DEFINE_EVENT(template, name, proto, args) \ 244};
238static notrace enum print_line_t \
239ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \
240{ \
241 return ftrace_raw_output_id_##template(event_##name.id, \
242 #name, iter, flags); \
243}
244 245
245#undef DEFINE_EVENT_PRINT 246#undef DEFINE_EVENT_PRINT
246#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ 247#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
247static notrace enum print_line_t \ 248static notrace enum print_line_t \
248ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ 249ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
250 struct trace_event *event) \
249{ \ 251{ \
250 struct trace_seq *s = &iter->seq; \ 252 struct trace_seq *s = &iter->seq; \
251 struct ftrace_raw_##template *field; \ 253 struct ftrace_raw_##template *field; \
@@ -255,7 +257,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
255 \ 257 \
256 entry = iter->ent; \ 258 entry = iter->ent; \
257 \ 259 \
258 if (entry->type != event_##call.id) { \ 260 if (entry->type != event_##call.event.type) { \
259 WARN_ON_ONCE(1); \ 261 WARN_ON_ONCE(1); \
260 return TRACE_TYPE_UNHANDLED; \ 262 return TRACE_TYPE_UNHANDLED; \
261 } \ 263 } \
@@ -272,7 +274,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
272 return TRACE_TYPE_PARTIAL_LINE; \ 274 return TRACE_TYPE_PARTIAL_LINE; \
273 \ 275 \
274 return TRACE_TYPE_HANDLED; \ 276 return TRACE_TYPE_HANDLED; \
275} 277} \
278static struct trace_event_functions ftrace_event_type_funcs_##call = { \
279 .trace = ftrace_raw_output_##call, \
280};
276 281
277#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 282#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
278 283
@@ -378,80 +383,18 @@ static inline notrace int ftrace_get_offsets_##call( \
378 383
379#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 384#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
380 385
381#ifdef CONFIG_PERF_EVENTS
382
383/*
384 * Generate the functions needed for tracepoint perf_event support.
385 *
386 * NOTE: The insertion profile callback (ftrace_profile_<call>) is defined later
387 *
388 * static int ftrace_profile_enable_<call>(void)
389 * {
390 * return register_trace_<call>(ftrace_profile_<call>);
391 * }
392 *
393 * static void ftrace_profile_disable_<call>(void)
394 * {
395 * unregister_trace_<call>(ftrace_profile_<call>);
396 * }
397 *
398 */
399
400#undef DECLARE_EVENT_CLASS
401#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)
402
403#undef DEFINE_EVENT
404#define DEFINE_EVENT(template, name, proto, args) \
405 \
406static void perf_trace_##name(proto); \
407 \
408static notrace int \
409perf_trace_enable_##name(struct ftrace_event_call *unused) \
410{ \
411 return register_trace_##name(perf_trace_##name); \
412} \
413 \
414static notrace void \
415perf_trace_disable_##name(struct ftrace_event_call *unused) \
416{ \
417 unregister_trace_##name(perf_trace_##name); \
418}
419
420#undef DEFINE_EVENT_PRINT
421#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
422 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
423
424#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
425
426#endif /* CONFIG_PERF_EVENTS */
427
428/* 386/*
429 * Stage 4 of the trace events. 387 * Stage 4 of the trace events.
430 * 388 *
431 * Override the macros in <trace/trace_events.h> to include the following: 389 * Override the macros in <trace/trace_events.h> to include the following:
432 * 390 *
433 * static void ftrace_event_<call>(proto)
434 * {
435 * event_trace_printk(_RET_IP_, "<call>: " <fmt>);
436 * }
437 *
438 * static int ftrace_reg_event_<call>(struct ftrace_event_call *unused)
439 * {
440 * return register_trace_<call>(ftrace_event_<call>);
441 * }
442 *
443 * static void ftrace_unreg_event_<call>(struct ftrace_event_call *unused)
444 * {
445 * unregister_trace_<call>(ftrace_event_<call>);
446 * }
447 *
448 *
449 * For those macros defined with TRACE_EVENT: 391 * For those macros defined with TRACE_EVENT:
450 * 392 *
451 * static struct ftrace_event_call event_<call>; 393 * static struct ftrace_event_call event_<call>;
452 * 394 *
453 * static void ftrace_raw_event_<call>(proto) 395 * static void ftrace_raw_event_<call>(void *__data, proto)
454 * { 396 * {
397 * struct ftrace_event_call *event_call = __data;
455 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets; 398 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
456 * struct ring_buffer_event *event; 399 * struct ring_buffer_event *event;
457 * struct ftrace_raw_<call> *entry; <-- defined in stage 1 400 * struct ftrace_raw_<call> *entry; <-- defined in stage 1
@@ -466,7 +409,7 @@ perf_trace_disable_##name(struct ftrace_event_call *unused) \
466 * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args); 409 * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
467 * 410 *
468 * event = trace_current_buffer_lock_reserve(&buffer, 411 * event = trace_current_buffer_lock_reserve(&buffer,
469 * event_<call>.id, 412 * event_<call>->event.type,
470 * sizeof(*entry) + __data_size, 413 * sizeof(*entry) + __data_size,
471 * irq_flags, pc); 414 * irq_flags, pc);
472 * if (!event) 415 * if (!event)
@@ -481,43 +424,42 @@ perf_trace_disable_##name(struct ftrace_event_call *unused) \
481 * event, irq_flags, pc); 424 * event, irq_flags, pc);
482 * } 425 * }
483 * 426 *
484 * static int ftrace_raw_reg_event_<call>(struct ftrace_event_call *unused)
485 * {
486 * return register_trace_<call>(ftrace_raw_event_<call>);
487 * }
488 *
489 * static void ftrace_unreg_event_<call>(struct ftrace_event_call *unused)
490 * {
491 * unregister_trace_<call>(ftrace_raw_event_<call>);
492 * }
493 *
494 * static struct trace_event ftrace_event_type_<call> = { 427 * static struct trace_event ftrace_event_type_<call> = {
495 * .trace = ftrace_raw_output_<call>, <-- stage 2 428 * .trace = ftrace_raw_output_<call>, <-- stage 2
496 * }; 429 * };
497 * 430 *
498 * static const char print_fmt_<call>[] = <TP_printk>; 431 * static const char print_fmt_<call>[] = <TP_printk>;
499 * 432 *
433 * static struct ftrace_event_class __used event_class_<template> = {
434 * .system = "<system>",
435 * .define_fields = ftrace_define_fields_<call>,
436 * .fields = LIST_HEAD_INIT(event_class_##call.fields),
437 * .raw_init = trace_event_raw_init,
438 * .probe = ftrace_raw_event_##call,
439 * };
440 *
500 * static struct ftrace_event_call __used 441 * static struct ftrace_event_call __used
501 * __attribute__((__aligned__(4))) 442 * __attribute__((__aligned__(4)))
502 * __attribute__((section("_ftrace_events"))) event_<call> = { 443 * __attribute__((section("_ftrace_events"))) event_<call> = {
503 * .name = "<call>", 444 * .name = "<call>",
504 * .system = "<system>", 445 * .class = event_class_<template>,
505 * .raw_init = trace_event_raw_init, 446 * .event = &ftrace_event_type_<call>,
506 * .regfunc = ftrace_reg_event_<call>,
507 * .unregfunc = ftrace_unreg_event_<call>,
508 * .print_fmt = print_fmt_<call>, 447 * .print_fmt = print_fmt_<call>,
509 * .define_fields = ftrace_define_fields_<call>, 448 * };
510 * }
511 * 449 *
512 */ 450 */
513 451
514#ifdef CONFIG_PERF_EVENTS 452#ifdef CONFIG_PERF_EVENTS
515 453
454#define _TRACE_PERF_PROTO(call, proto) \
455 static notrace void \
456 perf_trace_##call(void *__data, proto);
457
516#define _TRACE_PERF_INIT(call) \ 458#define _TRACE_PERF_INIT(call) \
517 .perf_event_enable = perf_trace_enable_##call, \ 459 .perf_probe = perf_trace_##call,
518 .perf_event_disable = perf_trace_disable_##call,
519 460
520#else 461#else
462#define _TRACE_PERF_PROTO(call, proto)
521#define _TRACE_PERF_INIT(call) 463#define _TRACE_PERF_INIT(call)
522#endif /* CONFIG_PERF_EVENTS */ 464#endif /* CONFIG_PERF_EVENTS */
523 465
@@ -551,9 +493,9 @@ perf_trace_disable_##name(struct ftrace_event_call *unused) \
551#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ 493#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
552 \ 494 \
553static notrace void \ 495static notrace void \
554ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ 496ftrace_raw_event_##call(void *__data, proto) \
555 proto) \
556{ \ 497{ \
498 struct ftrace_event_call *event_call = __data; \
557 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ 499 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
558 struct ring_buffer_event *event; \ 500 struct ring_buffer_event *event; \
559 struct ftrace_raw_##call *entry; \ 501 struct ftrace_raw_##call *entry; \
@@ -568,7 +510,7 @@ ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
568 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ 510 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
569 \ 511 \
570 event = trace_current_buffer_lock_reserve(&buffer, \ 512 event = trace_current_buffer_lock_reserve(&buffer, \
571 event_call->id, \ 513 event_call->event.type, \
572 sizeof(*entry) + __data_size, \ 514 sizeof(*entry) + __data_size, \
573 irq_flags, pc); \ 515 irq_flags, pc); \
574 if (!event) \ 516 if (!event) \
@@ -583,34 +525,21 @@ ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
583 trace_nowake_buffer_unlock_commit(buffer, \ 525 trace_nowake_buffer_unlock_commit(buffer, \
584 event, irq_flags, pc); \ 526 event, irq_flags, pc); \
585} 527}
528/*
529 * The ftrace_test_probe is compiled out, it is only here as a build time check
530 * to make sure that if the tracepoint handling changes, the ftrace probe will
531 * fail to compile unless it too is updated.
532 */
586 533
587#undef DEFINE_EVENT 534#undef DEFINE_EVENT
588#define DEFINE_EVENT(template, call, proto, args) \ 535#define DEFINE_EVENT(template, call, proto, args) \
589 \ 536static inline void ftrace_test_probe_##call(void) \
590static notrace void ftrace_raw_event_##call(proto) \
591{ \
592 ftrace_raw_event_id_##template(&event_##call, args); \
593} \
594 \
595static notrace int \
596ftrace_raw_reg_event_##call(struct ftrace_event_call *unused) \
597{ \
598 return register_trace_##call(ftrace_raw_event_##call); \
599} \
600 \
601static notrace void \
602ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused) \
603{ \ 537{ \
604 unregister_trace_##call(ftrace_raw_event_##call); \ 538 check_trace_callback_type_##call(ftrace_raw_event_##template); \
605} \ 539}
606 \
607static struct trace_event ftrace_event_type_##call = { \
608 .trace = ftrace_raw_output_##call, \
609};
610 540
611#undef DEFINE_EVENT_PRINT 541#undef DEFINE_EVENT_PRINT
612#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 542#define DEFINE_EVENT_PRINT(template, name, proto, args, print)
613 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
614 543
615#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 544#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
616 545
@@ -627,7 +556,16 @@ static struct trace_event ftrace_event_type_##call = { \
627 556
628#undef DECLARE_EVENT_CLASS 557#undef DECLARE_EVENT_CLASS
629#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ 558#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
630static const char print_fmt_##call[] = print; 559_TRACE_PERF_PROTO(call, PARAMS(proto)); \
560static const char print_fmt_##call[] = print; \
561static struct ftrace_event_class __used event_class_##call = { \
562 .system = __stringify(TRACE_SYSTEM), \
563 .define_fields = ftrace_define_fields_##call, \
564 .fields = LIST_HEAD_INIT(event_class_##call.fields),\
565 .raw_init = trace_event_raw_init, \
566 .probe = ftrace_raw_event_##call, \
567 _TRACE_PERF_INIT(call) \
568};
631 569
632#undef DEFINE_EVENT 570#undef DEFINE_EVENT
633#define DEFINE_EVENT(template, call, proto, args) \ 571#define DEFINE_EVENT(template, call, proto, args) \
@@ -636,15 +574,10 @@ static struct ftrace_event_call __used \
636__attribute__((__aligned__(4))) \ 574__attribute__((__aligned__(4))) \
637__attribute__((section("_ftrace_events"))) event_##call = { \ 575__attribute__((section("_ftrace_events"))) event_##call = { \
638 .name = #call, \ 576 .name = #call, \
639 .system = __stringify(TRACE_SYSTEM), \ 577 .class = &event_class_##template, \
640 .event = &ftrace_event_type_##call, \ 578 .event.funcs = &ftrace_event_type_funcs_##template, \
641 .raw_init = trace_event_raw_init, \
642 .regfunc = ftrace_raw_reg_event_##call, \
643 .unregfunc = ftrace_raw_unreg_event_##call, \
644 .print_fmt = print_fmt_##template, \ 579 .print_fmt = print_fmt_##template, \
645 .define_fields = ftrace_define_fields_##template, \ 580};
646 _TRACE_PERF_INIT(call) \
647}
648 581
649#undef DEFINE_EVENT_PRINT 582#undef DEFINE_EVENT_PRINT
650#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ 583#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
@@ -655,14 +588,9 @@ static struct ftrace_event_call __used \
655__attribute__((__aligned__(4))) \ 588__attribute__((__aligned__(4))) \
656__attribute__((section("_ftrace_events"))) event_##call = { \ 589__attribute__((section("_ftrace_events"))) event_##call = { \
657 .name = #call, \ 590 .name = #call, \
658 .system = __stringify(TRACE_SYSTEM), \ 591 .class = &event_class_##template, \
659 .event = &ftrace_event_type_##call, \ 592 .event.funcs = &ftrace_event_type_funcs_##call, \
660 .raw_init = trace_event_raw_init, \
661 .regfunc = ftrace_raw_reg_event_##call, \
662 .unregfunc = ftrace_raw_unreg_event_##call, \
663 .print_fmt = print_fmt_##call, \ 593 .print_fmt = print_fmt_##call, \
664 .define_fields = ftrace_define_fields_##template, \
665 _TRACE_PERF_INIT(call) \
666} 594}
667 595
668#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 596#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
@@ -762,17 +690,20 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
762#undef DECLARE_EVENT_CLASS 690#undef DECLARE_EVENT_CLASS
763#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ 691#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
764static notrace void \ 692static notrace void \
765perf_trace_templ_##call(struct ftrace_event_call *event_call, \ 693perf_trace_##call(void *__data, proto) \
766 struct pt_regs *__regs, proto) \
767{ \ 694{ \
695 struct ftrace_event_call *event_call = __data; \
768 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ 696 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
769 struct ftrace_raw_##call *entry; \ 697 struct ftrace_raw_##call *entry; \
698 struct pt_regs __regs; \
770 u64 __addr = 0, __count = 1; \ 699 u64 __addr = 0, __count = 1; \
771 struct hlist_head *head; \ 700 struct hlist_head *head; \
772 int __entry_size; \ 701 int __entry_size; \
773 int __data_size; \ 702 int __data_size; \
774 int rctx; \ 703 int rctx; \
775 \ 704 \
705 perf_fetch_caller_regs(&__regs, 1); \
706 \
776 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ 707 __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
777 __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\ 708 __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
778 sizeof(u64)); \ 709 sizeof(u64)); \
@@ -783,7 +714,7 @@ perf_trace_templ_##call(struct ftrace_event_call *event_call, \
783 return; \ 714 return; \
784 \ 715 \
785 entry = (struct ftrace_raw_##call *)perf_trace_buf_prepare( \ 716 entry = (struct ftrace_raw_##call *)perf_trace_buf_prepare( \
786 __entry_size, event_call->id, __regs, &rctx); \ 717 __entry_size, event_call->event.type, &__regs, &rctx); \
787 if (!entry) \ 718 if (!entry) \
788 return; \ 719 return; \
789 \ 720 \
@@ -793,20 +724,22 @@ perf_trace_templ_##call(struct ftrace_event_call *event_call, \
793 \ 724 \
794 head = per_cpu_ptr(event_call->perf_events, smp_processor_id());\ 725 head = per_cpu_ptr(event_call->perf_events, smp_processor_id());\
795 perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \ 726 perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \
796 __count, __regs, head); \ 727 __count, &__regs, head); \
797} 728}
798 729
730/*
731 * This part is compiled out, it is only here as a build time check
732 * to make sure that if the tracepoint handling changes, the
733 * perf probe will fail to compile unless it too is updated.
734 */
799#undef DEFINE_EVENT 735#undef DEFINE_EVENT
800#define DEFINE_EVENT(template, call, proto, args) \ 736#define DEFINE_EVENT(template, call, proto, args) \
801static notrace void perf_trace_##call(proto) \ 737static inline void perf_test_probe_##call(void) \
802{ \ 738{ \
803 struct ftrace_event_call *event_call = &event_##call; \ 739 check_trace_callback_type_##call(perf_trace_##template); \
804 struct pt_regs __regs; \
805 \
806 perf_fetch_caller_regs(&__regs, 1); \
807 perf_trace_templ_##template(event_call, &__regs, args); \
808} 740}
809 741
742
810#undef DEFINE_EVENT_PRINT 743#undef DEFINE_EVENT_PRINT
811#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ 744#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
812 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) 745 DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index e5e5f48dbfb3..257e08960d7b 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -25,6 +25,8 @@ struct syscall_metadata {
25 int nb_args; 25 int nb_args;
26 const char **types; 26 const char **types;
27 const char **args; 27 const char **args;
28 struct list_head enter_fields;
29 struct list_head exit_fields;
28 30
29 struct ftrace_event_call *enter_event; 31 struct ftrace_event_call *enter_event;
30 struct ftrace_event_call *exit_event; 32 struct ftrace_event_call *exit_event;
@@ -34,16 +36,16 @@ struct syscall_metadata {
34extern unsigned long arch_syscall_addr(int nr); 36extern unsigned long arch_syscall_addr(int nr);
35extern int init_syscall_trace(struct ftrace_event_call *call); 37extern int init_syscall_trace(struct ftrace_event_call *call);
36 38
37extern int syscall_enter_define_fields(struct ftrace_event_call *call);
38extern int syscall_exit_define_fields(struct ftrace_event_call *call);
39extern int reg_event_syscall_enter(struct ftrace_event_call *call); 39extern int reg_event_syscall_enter(struct ftrace_event_call *call);
40extern void unreg_event_syscall_enter(struct ftrace_event_call *call); 40extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
41extern int reg_event_syscall_exit(struct ftrace_event_call *call); 41extern int reg_event_syscall_exit(struct ftrace_event_call *call);
42extern void unreg_event_syscall_exit(struct ftrace_event_call *call); 42extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
43extern int 43extern int
44ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s); 44ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
45enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags); 45enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags,
46enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags); 46 struct trace_event *event);
47enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags,
48 struct trace_event *event);
47#endif 49#endif
48 50
49#ifdef CONFIG_PERF_EVENTS 51#ifdef CONFIG_PERF_EVENTS
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index b3bc91a3f510..36ea2b65dcdc 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -675,28 +675,33 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq,
675 } 675 }
676} 676}
677 677
678static void blk_add_trace_rq_abort(struct request_queue *q, struct request *rq) 678static void blk_add_trace_rq_abort(void *ignore,
679 struct request_queue *q, struct request *rq)
679{ 680{
680 blk_add_trace_rq(q, rq, BLK_TA_ABORT); 681 blk_add_trace_rq(q, rq, BLK_TA_ABORT);
681} 682}
682 683
683static void blk_add_trace_rq_insert(struct request_queue *q, struct request *rq) 684static void blk_add_trace_rq_insert(void *ignore,
685 struct request_queue *q, struct request *rq)
684{ 686{
685 blk_add_trace_rq(q, rq, BLK_TA_INSERT); 687 blk_add_trace_rq(q, rq, BLK_TA_INSERT);
686} 688}
687 689
688static void blk_add_trace_rq_issue(struct request_queue *q, struct request *rq) 690static void blk_add_trace_rq_issue(void *ignore,
691 struct request_queue *q, struct request *rq)
689{ 692{
690 blk_add_trace_rq(q, rq, BLK_TA_ISSUE); 693 blk_add_trace_rq(q, rq, BLK_TA_ISSUE);
691} 694}
692 695
693static void blk_add_trace_rq_requeue(struct request_queue *q, 696static void blk_add_trace_rq_requeue(void *ignore,
697 struct request_queue *q,
694 struct request *rq) 698 struct request *rq)
695{ 699{
696 blk_add_trace_rq(q, rq, BLK_TA_REQUEUE); 700 blk_add_trace_rq(q, rq, BLK_TA_REQUEUE);
697} 701}
698 702
699static void blk_add_trace_rq_complete(struct request_queue *q, 703static void blk_add_trace_rq_complete(void *ignore,
704 struct request_queue *q,
700 struct request *rq) 705 struct request *rq)
701{ 706{
702 blk_add_trace_rq(q, rq, BLK_TA_COMPLETE); 707 blk_add_trace_rq(q, rq, BLK_TA_COMPLETE);
@@ -724,34 +729,40 @@ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio,
724 !bio_flagged(bio, BIO_UPTODATE), 0, NULL); 729 !bio_flagged(bio, BIO_UPTODATE), 0, NULL);
725} 730}
726 731
727static void blk_add_trace_bio_bounce(struct request_queue *q, struct bio *bio) 732static void blk_add_trace_bio_bounce(void *ignore,
733 struct request_queue *q, struct bio *bio)
728{ 734{
729 blk_add_trace_bio(q, bio, BLK_TA_BOUNCE); 735 blk_add_trace_bio(q, bio, BLK_TA_BOUNCE);
730} 736}
731 737
732static void blk_add_trace_bio_complete(struct request_queue *q, struct bio *bio) 738static void blk_add_trace_bio_complete(void *ignore,
739 struct request_queue *q, struct bio *bio)
733{ 740{
734 blk_add_trace_bio(q, bio, BLK_TA_COMPLETE); 741 blk_add_trace_bio(q, bio, BLK_TA_COMPLETE);
735} 742}
736 743
737static void blk_add_trace_bio_backmerge(struct request_queue *q, 744static void blk_add_trace_bio_backmerge(void *ignore,
745 struct request_queue *q,
738 struct bio *bio) 746 struct bio *bio)
739{ 747{
740 blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE); 748 blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE);
741} 749}
742 750
743static void blk_add_trace_bio_frontmerge(struct request_queue *q, 751static void blk_add_trace_bio_frontmerge(void *ignore,
752 struct request_queue *q,
744 struct bio *bio) 753 struct bio *bio)
745{ 754{
746 blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE); 755 blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE);
747} 756}
748 757
749static void blk_add_trace_bio_queue(struct request_queue *q, struct bio *bio) 758static void blk_add_trace_bio_queue(void *ignore,
759 struct request_queue *q, struct bio *bio)
750{ 760{
751 blk_add_trace_bio(q, bio, BLK_TA_QUEUE); 761 blk_add_trace_bio(q, bio, BLK_TA_QUEUE);
752} 762}
753 763
754static void blk_add_trace_getrq(struct request_queue *q, 764static void blk_add_trace_getrq(void *ignore,
765 struct request_queue *q,
755 struct bio *bio, int rw) 766 struct bio *bio, int rw)
756{ 767{
757 if (bio) 768 if (bio)
@@ -765,7 +776,8 @@ static void blk_add_trace_getrq(struct request_queue *q,
765} 776}
766 777
767 778
768static void blk_add_trace_sleeprq(struct request_queue *q, 779static void blk_add_trace_sleeprq(void *ignore,
780 struct request_queue *q,
769 struct bio *bio, int rw) 781 struct bio *bio, int rw)
770{ 782{
771 if (bio) 783 if (bio)
@@ -779,7 +791,7 @@ static void blk_add_trace_sleeprq(struct request_queue *q,
779 } 791 }
780} 792}
781 793
782static void blk_add_trace_plug(struct request_queue *q) 794static void blk_add_trace_plug(void *ignore, struct request_queue *q)
783{ 795{
784 struct blk_trace *bt = q->blk_trace; 796 struct blk_trace *bt = q->blk_trace;
785 797
@@ -787,7 +799,7 @@ static void blk_add_trace_plug(struct request_queue *q)
787 __blk_add_trace(bt, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL); 799 __blk_add_trace(bt, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL);
788} 800}
789 801
790static void blk_add_trace_unplug_io(struct request_queue *q) 802static void blk_add_trace_unplug_io(void *ignore, struct request_queue *q)
791{ 803{
792 struct blk_trace *bt = q->blk_trace; 804 struct blk_trace *bt = q->blk_trace;
793 805
@@ -800,7 +812,7 @@ static void blk_add_trace_unplug_io(struct request_queue *q)
800 } 812 }
801} 813}
802 814
803static void blk_add_trace_unplug_timer(struct request_queue *q) 815static void blk_add_trace_unplug_timer(void *ignore, struct request_queue *q)
804{ 816{
805 struct blk_trace *bt = q->blk_trace; 817 struct blk_trace *bt = q->blk_trace;
806 818
@@ -813,7 +825,8 @@ static void blk_add_trace_unplug_timer(struct request_queue *q)
813 } 825 }
814} 826}
815 827
816static void blk_add_trace_split(struct request_queue *q, struct bio *bio, 828static void blk_add_trace_split(void *ignore,
829 struct request_queue *q, struct bio *bio,
817 unsigned int pdu) 830 unsigned int pdu)
818{ 831{
819 struct blk_trace *bt = q->blk_trace; 832 struct blk_trace *bt = q->blk_trace;
@@ -839,8 +852,9 @@ static void blk_add_trace_split(struct request_queue *q, struct bio *bio,
839 * it spans a stripe (or similar). Add a trace for that action. 852 * it spans a stripe (or similar). Add a trace for that action.
840 * 853 *
841 **/ 854 **/
842static void blk_add_trace_remap(struct request_queue *q, struct bio *bio, 855static void blk_add_trace_remap(void *ignore,
843 dev_t dev, sector_t from) 856 struct request_queue *q, struct bio *bio,
857 dev_t dev, sector_t from)
844{ 858{
845 struct blk_trace *bt = q->blk_trace; 859 struct blk_trace *bt = q->blk_trace;
846 struct blk_io_trace_remap r; 860 struct blk_io_trace_remap r;
@@ -869,7 +883,8 @@ static void blk_add_trace_remap(struct request_queue *q, struct bio *bio,
869 * Add a trace for that action. 883 * Add a trace for that action.
870 * 884 *
871 **/ 885 **/
872static void blk_add_trace_rq_remap(struct request_queue *q, 886static void blk_add_trace_rq_remap(void *ignore,
887 struct request_queue *q,
873 struct request *rq, dev_t dev, 888 struct request *rq, dev_t dev,
874 sector_t from) 889 sector_t from)
875{ 890{
@@ -921,64 +936,64 @@ static void blk_register_tracepoints(void)
921{ 936{
922 int ret; 937 int ret;
923 938
924 ret = register_trace_block_rq_abort(blk_add_trace_rq_abort); 939 ret = register_trace_block_rq_abort(blk_add_trace_rq_abort, NULL);
925 WARN_ON(ret); 940 WARN_ON(ret);
926 ret = register_trace_block_rq_insert(blk_add_trace_rq_insert); 941 ret = register_trace_block_rq_insert(blk_add_trace_rq_insert, NULL);
927 WARN_ON(ret); 942 WARN_ON(ret);
928 ret = register_trace_block_rq_issue(blk_add_trace_rq_issue); 943 ret = register_trace_block_rq_issue(blk_add_trace_rq_issue, NULL);
929 WARN_ON(ret); 944 WARN_ON(ret);
930 ret = register_trace_block_rq_requeue(blk_add_trace_rq_requeue); 945 ret = register_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL);
931 WARN_ON(ret); 946 WARN_ON(ret);
932 ret = register_trace_block_rq_complete(blk_add_trace_rq_complete); 947 ret = register_trace_block_rq_complete(blk_add_trace_rq_complete, NULL);
933 WARN_ON(ret); 948 WARN_ON(ret);
934 ret = register_trace_block_bio_bounce(blk_add_trace_bio_bounce); 949 ret = register_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL);
935 WARN_ON(ret); 950 WARN_ON(ret);
936 ret = register_trace_block_bio_complete(blk_add_trace_bio_complete); 951 ret = register_trace_block_bio_complete(blk_add_trace_bio_complete, NULL);
937 WARN_ON(ret); 952 WARN_ON(ret);
938 ret = register_trace_block_bio_backmerge(blk_add_trace_bio_backmerge); 953 ret = register_trace_block_bio_backmerge(blk_add_trace_bio_backmerge, NULL);
939 WARN_ON(ret); 954 WARN_ON(ret);
940 ret = register_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge); 955 ret = register_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL);
941 WARN_ON(ret); 956 WARN_ON(ret);
942 ret = register_trace_block_bio_queue(blk_add_trace_bio_queue); 957 ret = register_trace_block_bio_queue(blk_add_trace_bio_queue, NULL);
943 WARN_ON(ret); 958 WARN_ON(ret);
944 ret = register_trace_block_getrq(blk_add_trace_getrq); 959 ret = register_trace_block_getrq(blk_add_trace_getrq, NULL);
945 WARN_ON(ret); 960 WARN_ON(ret);
946 ret = register_trace_block_sleeprq(blk_add_trace_sleeprq); 961 ret = register_trace_block_sleeprq(blk_add_trace_sleeprq, NULL);
947 WARN_ON(ret); 962 WARN_ON(ret);
948 ret = register_trace_block_plug(blk_add_trace_plug); 963 ret = register_trace_block_plug(blk_add_trace_plug, NULL);
949 WARN_ON(ret); 964 WARN_ON(ret);
950 ret = register_trace_block_unplug_timer(blk_add_trace_unplug_timer); 965 ret = register_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL);
951 WARN_ON(ret); 966 WARN_ON(ret);
952 ret = register_trace_block_unplug_io(blk_add_trace_unplug_io); 967 ret = register_trace_block_unplug_io(blk_add_trace_unplug_io, NULL);
953 WARN_ON(ret); 968 WARN_ON(ret);
954 ret = register_trace_block_split(blk_add_trace_split); 969 ret = register_trace_block_split(blk_add_trace_split, NULL);
955 WARN_ON(ret); 970 WARN_ON(ret);
956 ret = register_trace_block_remap(blk_add_trace_remap); 971 ret = register_trace_block_remap(blk_add_trace_remap, NULL);
957 WARN_ON(ret); 972 WARN_ON(ret);
958 ret = register_trace_block_rq_remap(blk_add_trace_rq_remap); 973 ret = register_trace_block_rq_remap(blk_add_trace_rq_remap, NULL);
959 WARN_ON(ret); 974 WARN_ON(ret);
960} 975}
961 976
962static void blk_unregister_tracepoints(void) 977static void blk_unregister_tracepoints(void)
963{ 978{
964 unregister_trace_block_rq_remap(blk_add_trace_rq_remap); 979 unregister_trace_block_rq_remap(blk_add_trace_rq_remap, NULL);
965 unregister_trace_block_remap(blk_add_trace_remap); 980 unregister_trace_block_remap(blk_add_trace_remap, NULL);
966 unregister_trace_block_split(blk_add_trace_split); 981 unregister_trace_block_split(blk_add_trace_split, NULL);
967 unregister_trace_block_unplug_io(blk_add_trace_unplug_io); 982 unregister_trace_block_unplug_io(blk_add_trace_unplug_io, NULL);
968 unregister_trace_block_unplug_timer(blk_add_trace_unplug_timer); 983 unregister_trace_block_unplug_timer(blk_add_trace_unplug_timer, NULL);
969 unregister_trace_block_plug(blk_add_trace_plug); 984 unregister_trace_block_plug(blk_add_trace_plug, NULL);
970 unregister_trace_block_sleeprq(blk_add_trace_sleeprq); 985 unregister_trace_block_sleeprq(blk_add_trace_sleeprq, NULL);
971 unregister_trace_block_getrq(blk_add_trace_getrq); 986 unregister_trace_block_getrq(blk_add_trace_getrq, NULL);
972 unregister_trace_block_bio_queue(blk_add_trace_bio_queue); 987 unregister_trace_block_bio_queue(blk_add_trace_bio_queue, NULL);
973 unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge); 988 unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL);
974 unregister_trace_block_bio_backmerge(blk_add_trace_bio_backmerge); 989 unregister_trace_block_bio_backmerge(blk_add_trace_bio_backmerge, NULL);
975 unregister_trace_block_bio_complete(blk_add_trace_bio_complete); 990 unregister_trace_block_bio_complete(blk_add_trace_bio_complete, NULL);
976 unregister_trace_block_bio_bounce(blk_add_trace_bio_bounce); 991 unregister_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL);
977 unregister_trace_block_rq_complete(blk_add_trace_rq_complete); 992 unregister_trace_block_rq_complete(blk_add_trace_rq_complete, NULL);
978 unregister_trace_block_rq_requeue(blk_add_trace_rq_requeue); 993 unregister_trace_block_rq_requeue(blk_add_trace_rq_requeue, NULL);
979 unregister_trace_block_rq_issue(blk_add_trace_rq_issue); 994 unregister_trace_block_rq_issue(blk_add_trace_rq_issue, NULL);
980 unregister_trace_block_rq_insert(blk_add_trace_rq_insert); 995 unregister_trace_block_rq_insert(blk_add_trace_rq_insert, NULL);
981 unregister_trace_block_rq_abort(blk_add_trace_rq_abort); 996 unregister_trace_block_rq_abort(blk_add_trace_rq_abort, NULL);
982 997
983 tracepoint_synchronize_unregister(); 998 tracepoint_synchronize_unregister();
984} 999}
@@ -1321,7 +1336,7 @@ out:
1321} 1336}
1322 1337
1323static enum print_line_t blk_trace_event_print(struct trace_iterator *iter, 1338static enum print_line_t blk_trace_event_print(struct trace_iterator *iter,
1324 int flags) 1339 int flags, struct trace_event *event)
1325{ 1340{
1326 return print_one_line(iter, false); 1341 return print_one_line(iter, false);
1327} 1342}
@@ -1343,7 +1358,8 @@ static int blk_trace_synthesize_old_trace(struct trace_iterator *iter)
1343} 1358}
1344 1359
1345static enum print_line_t 1360static enum print_line_t
1346blk_trace_event_print_binary(struct trace_iterator *iter, int flags) 1361blk_trace_event_print_binary(struct trace_iterator *iter, int flags,
1362 struct trace_event *event)
1347{ 1363{
1348 return blk_trace_synthesize_old_trace(iter) ? 1364 return blk_trace_synthesize_old_trace(iter) ?
1349 TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE; 1365 TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
@@ -1381,12 +1397,16 @@ static struct tracer blk_tracer __read_mostly = {
1381 .set_flag = blk_tracer_set_flag, 1397 .set_flag = blk_tracer_set_flag,
1382}; 1398};
1383 1399
1384static struct trace_event trace_blk_event = { 1400static struct trace_event_functions trace_blk_event_funcs = {
1385 .type = TRACE_BLK,
1386 .trace = blk_trace_event_print, 1401 .trace = blk_trace_event_print,
1387 .binary = blk_trace_event_print_binary, 1402 .binary = blk_trace_event_print_binary,
1388}; 1403};
1389 1404
1405static struct trace_event trace_blk_event = {
1406 .type = TRACE_BLK,
1407 .funcs = &trace_blk_event_funcs,
1408};
1409
1390static int __init init_blk_tracer(void) 1410static int __init init_blk_tracer(void)
1391{ 1411{
1392 if (!register_ftrace_event(&trace_blk_event)) { 1412 if (!register_ftrace_event(&trace_blk_event)) {
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 32837e19e3bd..6d2cb14f9449 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3234,7 +3234,8 @@ free:
3234} 3234}
3235 3235
3236static void 3236static void
3237ftrace_graph_probe_sched_switch(struct task_struct *prev, struct task_struct *next) 3237ftrace_graph_probe_sched_switch(void *ignore,
3238 struct task_struct *prev, struct task_struct *next)
3238{ 3239{
3239 unsigned long long timestamp; 3240 unsigned long long timestamp;
3240 int index; 3241 int index;
@@ -3288,7 +3289,7 @@ static int start_graph_tracing(void)
3288 } while (ret == -EAGAIN); 3289 } while (ret == -EAGAIN);
3289 3290
3290 if (!ret) { 3291 if (!ret) {
3291 ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch); 3292 ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
3292 if (ret) 3293 if (ret)
3293 pr_info("ftrace_graph: Couldn't activate tracepoint" 3294 pr_info("ftrace_graph: Couldn't activate tracepoint"
3294 " probe to kernel_sched_switch\n"); 3295 " probe to kernel_sched_switch\n");
@@ -3364,7 +3365,7 @@ void unregister_ftrace_graph(void)
3364 ftrace_graph_entry = ftrace_graph_entry_stub; 3365 ftrace_graph_entry = ftrace_graph_entry_stub;
3365 ftrace_shutdown(FTRACE_STOP_FUNC_RET); 3366 ftrace_shutdown(FTRACE_STOP_FUNC_RET);
3366 unregister_pm_notifier(&ftrace_suspend_notifier); 3367 unregister_pm_notifier(&ftrace_suspend_notifier);
3367 unregister_trace_sched_switch(ftrace_graph_probe_sched_switch); 3368 unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
3368 3369
3369 out: 3370 out:
3370 mutex_unlock(&ftrace_lock); 3371 mutex_unlock(&ftrace_lock);
diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c
index a91da69f153a..bbfc1bb1660b 100644
--- a/kernel/trace/kmemtrace.c
+++ b/kernel/trace/kmemtrace.c
@@ -95,7 +95,8 @@ static inline void kmemtrace_free(enum kmemtrace_type_id type_id,
95 trace_wake_up(); 95 trace_wake_up();
96} 96}
97 97
98static void kmemtrace_kmalloc(unsigned long call_site, 98static void kmemtrace_kmalloc(void *ignore,
99 unsigned long call_site,
99 const void *ptr, 100 const void *ptr,
100 size_t bytes_req, 101 size_t bytes_req,
101 size_t bytes_alloc, 102 size_t bytes_alloc,
@@ -105,7 +106,8 @@ static void kmemtrace_kmalloc(unsigned long call_site,
105 bytes_req, bytes_alloc, gfp_flags, -1); 106 bytes_req, bytes_alloc, gfp_flags, -1);
106} 107}
107 108
108static void kmemtrace_kmem_cache_alloc(unsigned long call_site, 109static void kmemtrace_kmem_cache_alloc(void *ignore,
110 unsigned long call_site,
109 const void *ptr, 111 const void *ptr,
110 size_t bytes_req, 112 size_t bytes_req,
111 size_t bytes_alloc, 113 size_t bytes_alloc,
@@ -115,7 +117,8 @@ static void kmemtrace_kmem_cache_alloc(unsigned long call_site,
115 bytes_req, bytes_alloc, gfp_flags, -1); 117 bytes_req, bytes_alloc, gfp_flags, -1);
116} 118}
117 119
118static void kmemtrace_kmalloc_node(unsigned long call_site, 120static void kmemtrace_kmalloc_node(void *ignore,
121 unsigned long call_site,
119 const void *ptr, 122 const void *ptr,
120 size_t bytes_req, 123 size_t bytes_req,
121 size_t bytes_alloc, 124 size_t bytes_alloc,
@@ -126,7 +129,8 @@ static void kmemtrace_kmalloc_node(unsigned long call_site,
126 bytes_req, bytes_alloc, gfp_flags, node); 129 bytes_req, bytes_alloc, gfp_flags, node);
127} 130}
128 131
129static void kmemtrace_kmem_cache_alloc_node(unsigned long call_site, 132static void kmemtrace_kmem_cache_alloc_node(void *ignore,
133 unsigned long call_site,
130 const void *ptr, 134 const void *ptr,
131 size_t bytes_req, 135 size_t bytes_req,
132 size_t bytes_alloc, 136 size_t bytes_alloc,
@@ -137,12 +141,14 @@ static void kmemtrace_kmem_cache_alloc_node(unsigned long call_site,
137 bytes_req, bytes_alloc, gfp_flags, node); 141 bytes_req, bytes_alloc, gfp_flags, node);
138} 142}
139 143
140static void kmemtrace_kfree(unsigned long call_site, const void *ptr) 144static void
145kmemtrace_kfree(void *ignore, unsigned long call_site, const void *ptr)
141{ 146{
142 kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, call_site, ptr); 147 kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, call_site, ptr);
143} 148}
144 149
145static void kmemtrace_kmem_cache_free(unsigned long call_site, const void *ptr) 150static void kmemtrace_kmem_cache_free(void *ignore,
151 unsigned long call_site, const void *ptr)
146{ 152{
147 kmemtrace_free(KMEMTRACE_TYPE_CACHE, call_site, ptr); 153 kmemtrace_free(KMEMTRACE_TYPE_CACHE, call_site, ptr);
148} 154}
@@ -151,34 +157,34 @@ static int kmemtrace_start_probes(void)
151{ 157{
152 int err; 158 int err;
153 159
154 err = register_trace_kmalloc(kmemtrace_kmalloc); 160 err = register_trace_kmalloc(kmemtrace_kmalloc, NULL);
155 if (err) 161 if (err)
156 return err; 162 return err;
157 err = register_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc); 163 err = register_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL);
158 if (err) 164 if (err)
159 return err; 165 return err;
160 err = register_trace_kmalloc_node(kmemtrace_kmalloc_node); 166 err = register_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL);
161 if (err) 167 if (err)
162 return err; 168 return err;
163 err = register_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node); 169 err = register_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL);
164 if (err) 170 if (err)
165 return err; 171 return err;
166 err = register_trace_kfree(kmemtrace_kfree); 172 err = register_trace_kfree(kmemtrace_kfree, NULL);
167 if (err) 173 if (err)
168 return err; 174 return err;
169 err = register_trace_kmem_cache_free(kmemtrace_kmem_cache_free); 175 err = register_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL);
170 176
171 return err; 177 return err;
172} 178}
173 179
174static void kmemtrace_stop_probes(void) 180static void kmemtrace_stop_probes(void)
175{ 181{
176 unregister_trace_kmalloc(kmemtrace_kmalloc); 182 unregister_trace_kmalloc(kmemtrace_kmalloc, NULL);
177 unregister_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc); 183 unregister_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL);
178 unregister_trace_kmalloc_node(kmemtrace_kmalloc_node); 184 unregister_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL);
179 unregister_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node); 185 unregister_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL);
180 unregister_trace_kfree(kmemtrace_kfree); 186 unregister_trace_kfree(kmemtrace_kfree, NULL);
181 unregister_trace_kmem_cache_free(kmemtrace_kmem_cache_free); 187 unregister_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL);
182} 188}
183 189
184static int kmem_trace_init(struct trace_array *tr) 190static int kmem_trace_init(struct trace_array *tr)
@@ -237,7 +243,8 @@ struct kmemtrace_user_event_alloc {
237}; 243};
238 244
239static enum print_line_t 245static enum print_line_t
240kmemtrace_print_alloc(struct trace_iterator *iter, int flags) 246kmemtrace_print_alloc(struct trace_iterator *iter, int flags,
247 struct trace_event *event)
241{ 248{
242 struct trace_seq *s = &iter->seq; 249 struct trace_seq *s = &iter->seq;
243 struct kmemtrace_alloc_entry *entry; 250 struct kmemtrace_alloc_entry *entry;
@@ -257,7 +264,8 @@ kmemtrace_print_alloc(struct trace_iterator *iter, int flags)
257} 264}
258 265
259static enum print_line_t 266static enum print_line_t
260kmemtrace_print_free(struct trace_iterator *iter, int flags) 267kmemtrace_print_free(struct trace_iterator *iter, int flags,
268 struct trace_event *event)
261{ 269{
262 struct trace_seq *s = &iter->seq; 270 struct trace_seq *s = &iter->seq;
263 struct kmemtrace_free_entry *entry; 271 struct kmemtrace_free_entry *entry;
@@ -275,7 +283,8 @@ kmemtrace_print_free(struct trace_iterator *iter, int flags)
275} 283}
276 284
277static enum print_line_t 285static enum print_line_t
278kmemtrace_print_alloc_user(struct trace_iterator *iter, int flags) 286kmemtrace_print_alloc_user(struct trace_iterator *iter, int flags,
287 struct trace_event *event)
279{ 288{
280 struct trace_seq *s = &iter->seq; 289 struct trace_seq *s = &iter->seq;
281 struct kmemtrace_alloc_entry *entry; 290 struct kmemtrace_alloc_entry *entry;
@@ -309,7 +318,8 @@ kmemtrace_print_alloc_user(struct trace_iterator *iter, int flags)
309} 318}
310 319
311static enum print_line_t 320static enum print_line_t
312kmemtrace_print_free_user(struct trace_iterator *iter, int flags) 321kmemtrace_print_free_user(struct trace_iterator *iter, int flags,
322 struct trace_event *event)
313{ 323{
314 struct trace_seq *s = &iter->seq; 324 struct trace_seq *s = &iter->seq;
315 struct kmemtrace_free_entry *entry; 325 struct kmemtrace_free_entry *entry;
@@ -463,18 +473,26 @@ static enum print_line_t kmemtrace_print_line(struct trace_iterator *iter)
463 } 473 }
464} 474}
465 475
466static struct trace_event kmem_trace_alloc = { 476static struct trace_event_functions kmem_trace_alloc_funcs = {
467 .type = TRACE_KMEM_ALLOC,
468 .trace = kmemtrace_print_alloc, 477 .trace = kmemtrace_print_alloc,
469 .binary = kmemtrace_print_alloc_user, 478 .binary = kmemtrace_print_alloc_user,
470}; 479};
471 480
472static struct trace_event kmem_trace_free = { 481static struct trace_event kmem_trace_alloc = {
473 .type = TRACE_KMEM_FREE, 482 .type = TRACE_KMEM_ALLOC,
483 .funcs = &kmem_trace_alloc_funcs,
484};
485
486static struct trace_event_functions kmem_trace_free_funcs = {
474 .trace = kmemtrace_print_free, 487 .trace = kmemtrace_print_free,
475 .binary = kmemtrace_print_free_user, 488 .binary = kmemtrace_print_free_user,
476}; 489};
477 490
491static struct trace_event kmem_trace_free = {
492 .type = TRACE_KMEM_FREE,
493 .funcs = &kmem_trace_free_funcs,
494};
495
478static struct tracer kmem_tracer __read_mostly = { 496static struct tracer kmem_tracer __read_mostly = {
479 .name = "kmemtrace", 497 .name = "kmemtrace",
480 .init = kmem_trace_init, 498 .init = kmem_trace_init,
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 756d7283318b..ba0ec81158b2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1936,7 +1936,7 @@ static enum print_line_t print_trace_fmt(struct trace_iterator *iter)
1936 } 1936 }
1937 1937
1938 if (event) 1938 if (event)
1939 return event->trace(iter, sym_flags); 1939 return event->funcs->trace(iter, sym_flags, event);
1940 1940
1941 if (!trace_seq_printf(s, "Unknown type %d\n", entry->type)) 1941 if (!trace_seq_printf(s, "Unknown type %d\n", entry->type))
1942 goto partial; 1942 goto partial;
@@ -1962,7 +1962,7 @@ static enum print_line_t print_raw_fmt(struct trace_iterator *iter)
1962 1962
1963 event = ftrace_find_event(entry->type); 1963 event = ftrace_find_event(entry->type);
1964 if (event) 1964 if (event)
1965 return event->raw(iter, 0); 1965 return event->funcs->raw(iter, 0, event);
1966 1966
1967 if (!trace_seq_printf(s, "%d ?\n", entry->type)) 1967 if (!trace_seq_printf(s, "%d ?\n", entry->type))
1968 goto partial; 1968 goto partial;
@@ -1989,7 +1989,7 @@ static enum print_line_t print_hex_fmt(struct trace_iterator *iter)
1989 1989
1990 event = ftrace_find_event(entry->type); 1990 event = ftrace_find_event(entry->type);
1991 if (event) { 1991 if (event) {
1992 enum print_line_t ret = event->hex(iter, 0); 1992 enum print_line_t ret = event->funcs->hex(iter, 0, event);
1993 if (ret != TRACE_TYPE_HANDLED) 1993 if (ret != TRACE_TYPE_HANDLED)
1994 return ret; 1994 return ret;
1995 } 1995 }
@@ -2014,7 +2014,8 @@ static enum print_line_t print_bin_fmt(struct trace_iterator *iter)
2014 } 2014 }
2015 2015
2016 event = ftrace_find_event(entry->type); 2016 event = ftrace_find_event(entry->type);
2017 return event ? event->binary(iter, 0) : TRACE_TYPE_HANDLED; 2017 return event ? event->funcs->binary(iter, 0, event) :
2018 TRACE_TYPE_HANDLED;
2018} 2019}
2019 2020
2020int trace_empty(struct trace_iterator *iter) 2021int trace_empty(struct trace_iterator *iter)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d1ce0bec1b3f..2cd96399463f 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -405,12 +405,12 @@ void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags,
405void __trace_stack(struct trace_array *tr, unsigned long flags, int skip, 405void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
406 int pc); 406 int pc);
407#else 407#else
408static inline void ftrace_trace_stack(struct trace_array *tr, 408static inline void ftrace_trace_stack(struct ring_buffer *buffer,
409 unsigned long flags, int skip, int pc) 409 unsigned long flags, int skip, int pc)
410{ 410{
411} 411}
412 412
413static inline void ftrace_trace_userstack(struct trace_array *tr, 413static inline void ftrace_trace_userstack(struct ring_buffer *buffer,
414 unsigned long flags, int pc) 414 unsigned long flags, int pc)
415{ 415{
416} 416}
@@ -778,12 +778,15 @@ extern void print_subsystem_event_filter(struct event_subsystem *system,
778 struct trace_seq *s); 778 struct trace_seq *s);
779extern int filter_assign_type(const char *type); 779extern int filter_assign_type(const char *type);
780 780
781struct list_head *
782trace_get_fields(struct ftrace_event_call *event_call);
783
781static inline int 784static inline int
782filter_check_discard(struct ftrace_event_call *call, void *rec, 785filter_check_discard(struct ftrace_event_call *call, void *rec,
783 struct ring_buffer *buffer, 786 struct ring_buffer *buffer,
784 struct ring_buffer_event *event) 787 struct ring_buffer_event *event)
785{ 788{
786 if (unlikely(call->filter_active) && 789 if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) &&
787 !filter_match_preds(call->filter, rec)) { 790 !filter_match_preds(call->filter, rec)) {
788 ring_buffer_discard_commit(buffer, event); 791 ring_buffer_discard_commit(buffer, event);
789 return 1; 792 return 1;
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index b9bc4d470177..8d3538b4ea5f 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -143,7 +143,7 @@ static void branch_trace_reset(struct trace_array *tr)
143} 143}
144 144
145static enum print_line_t trace_branch_print(struct trace_iterator *iter, 145static enum print_line_t trace_branch_print(struct trace_iterator *iter,
146 int flags) 146 int flags, struct trace_event *event)
147{ 147{
148 struct trace_branch *field; 148 struct trace_branch *field;
149 149
@@ -167,9 +167,13 @@ static void branch_print_header(struct seq_file *s)
167 " |\n"); 167 " |\n");
168} 168}
169 169
170static struct trace_event_functions trace_branch_funcs = {
171 .trace = trace_branch_print,
172};
173
170static struct trace_event trace_branch_event = { 174static struct trace_event trace_branch_event = {
171 .type = TRACE_BRANCH, 175 .type = TRACE_BRANCH,
172 .trace = trace_branch_print, 176 .funcs = &trace_branch_funcs,
173}; 177};
174 178
175static struct tracer branch_trace __read_mostly = 179static struct tracer branch_trace __read_mostly =
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 39d5ea7b0653..26b8607a0abc 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -56,7 +56,13 @@ static int perf_trace_event_init(struct ftrace_event_call *tp_event,
56 } 56 }
57 } 57 }
58 58
59 ret = tp_event->perf_event_enable(tp_event); 59 if (tp_event->class->reg)
60 ret = tp_event->class->reg(tp_event, TRACE_REG_PERF_REGISTER);
61 else
62 ret = tracepoint_probe_register(tp_event->name,
63 tp_event->class->perf_probe,
64 tp_event);
65
60 if (ret) 66 if (ret)
61 goto fail; 67 goto fail;
62 68
@@ -89,7 +95,8 @@ int perf_trace_init(struct perf_event *p_event)
89 95
90 mutex_lock(&event_mutex); 96 mutex_lock(&event_mutex);
91 list_for_each_entry(tp_event, &ftrace_events, list) { 97 list_for_each_entry(tp_event, &ftrace_events, list) {
92 if (tp_event->id == event_id && tp_event->perf_event_enable && 98 if (tp_event->event.type == event_id &&
99 tp_event->class && tp_event->class->perf_probe &&
93 try_module_get(tp_event->mod)) { 100 try_module_get(tp_event->mod)) {
94 ret = perf_trace_event_init(tp_event, p_event); 101 ret = perf_trace_event_init(tp_event, p_event);
95 break; 102 break;
@@ -128,7 +135,12 @@ void perf_trace_destroy(struct perf_event *p_event)
128 if (--tp_event->perf_refcount > 0) 135 if (--tp_event->perf_refcount > 0)
129 return; 136 return;
130 137
131 tp_event->perf_event_disable(tp_event); 138 if (tp_event->class->reg)
139 tp_event->class->reg(tp_event, TRACE_REG_PERF_UNREGISTER);
140 else
141 tracepoint_probe_unregister(tp_event->name,
142 tp_event->class->perf_probe,
143 tp_event);
132 144
133 free_percpu(tp_event->perf_events); 145 free_percpu(tp_event->perf_events);
134 tp_event->perf_events = NULL; 146 tp_event->perf_events = NULL;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index c697c7043349..53cffc0b0801 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -29,11 +29,23 @@ DEFINE_MUTEX(event_mutex);
29 29
30LIST_HEAD(ftrace_events); 30LIST_HEAD(ftrace_events);
31 31
32struct list_head *
33trace_get_fields(struct ftrace_event_call *event_call)
34{
35 if (!event_call->class->get_fields)
36 return &event_call->class->fields;
37 return event_call->class->get_fields(event_call);
38}
39
32int trace_define_field(struct ftrace_event_call *call, const char *type, 40int trace_define_field(struct ftrace_event_call *call, const char *type,
33 const char *name, int offset, int size, int is_signed, 41 const char *name, int offset, int size, int is_signed,
34 int filter_type) 42 int filter_type)
35{ 43{
36 struct ftrace_event_field *field; 44 struct ftrace_event_field *field;
45 struct list_head *head;
46
47 if (WARN_ON(!call->class))
48 return 0;
37 49
38 field = kzalloc(sizeof(*field), GFP_KERNEL); 50 field = kzalloc(sizeof(*field), GFP_KERNEL);
39 if (!field) 51 if (!field)
@@ -56,7 +68,8 @@ int trace_define_field(struct ftrace_event_call *call, const char *type,
56 field->size = size; 68 field->size = size;
57 field->is_signed = is_signed; 69 field->is_signed = is_signed;
58 70
59 list_add(&field->link, &call->fields); 71 head = trace_get_fields(call);
72 list_add(&field->link, head);
60 73
61 return 0; 74 return 0;
62 75
@@ -94,8 +107,10 @@ static int trace_define_common_fields(struct ftrace_event_call *call)
94void trace_destroy_fields(struct ftrace_event_call *call) 107void trace_destroy_fields(struct ftrace_event_call *call)
95{ 108{
96 struct ftrace_event_field *field, *next; 109 struct ftrace_event_field *field, *next;
110 struct list_head *head;
97 111
98 list_for_each_entry_safe(field, next, &call->fields, link) { 112 head = trace_get_fields(call);
113 list_for_each_entry_safe(field, next, head, link) {
99 list_del(&field->link); 114 list_del(&field->link);
100 kfree(field->type); 115 kfree(field->type);
101 kfree(field->name); 116 kfree(field->name);
@@ -107,11 +122,9 @@ int trace_event_raw_init(struct ftrace_event_call *call)
107{ 122{
108 int id; 123 int id;
109 124
110 id = register_ftrace_event(call->event); 125 id = register_ftrace_event(&call->event);
111 if (!id) 126 if (!id)
112 return -ENODEV; 127 return -ENODEV;
113 call->id = id;
114 INIT_LIST_HEAD(&call->fields);
115 128
116 return 0; 129 return 0;
117} 130}
@@ -124,23 +137,33 @@ static int ftrace_event_enable_disable(struct ftrace_event_call *call,
124 137
125 switch (enable) { 138 switch (enable) {
126 case 0: 139 case 0:
127 if (call->enabled) { 140 if (call->flags & TRACE_EVENT_FL_ENABLED) {
128 call->enabled = 0; 141 call->flags &= ~TRACE_EVENT_FL_ENABLED;
129 tracing_stop_cmdline_record(); 142 tracing_stop_cmdline_record();
130 call->unregfunc(call); 143 if (call->class->reg)
144 call->class->reg(call, TRACE_REG_UNREGISTER);
145 else
146 tracepoint_probe_unregister(call->name,
147 call->class->probe,
148 call);
131 } 149 }
132 break; 150 break;
133 case 1: 151 case 1:
134 if (!call->enabled) { 152 if (!(call->flags & TRACE_EVENT_FL_ENABLED)) {
135 tracing_start_cmdline_record(); 153 tracing_start_cmdline_record();
136 ret = call->regfunc(call); 154 if (call->class->reg)
155 ret = call->class->reg(call, TRACE_REG_REGISTER);
156 else
157 ret = tracepoint_probe_register(call->name,
158 call->class->probe,
159 call);
137 if (ret) { 160 if (ret) {
138 tracing_stop_cmdline_record(); 161 tracing_stop_cmdline_record();
139 pr_info("event trace: Could not enable event " 162 pr_info("event trace: Could not enable event "
140 "%s\n", call->name); 163 "%s\n", call->name);
141 break; 164 break;
142 } 165 }
143 call->enabled = 1; 166 call->flags |= TRACE_EVENT_FL_ENABLED;
144 } 167 }
145 break; 168 break;
146 } 169 }
@@ -171,15 +194,16 @@ static int __ftrace_set_clr_event(const char *match, const char *sub,
171 mutex_lock(&event_mutex); 194 mutex_lock(&event_mutex);
172 list_for_each_entry(call, &ftrace_events, list) { 195 list_for_each_entry(call, &ftrace_events, list) {
173 196
174 if (!call->name || !call->regfunc) 197 if (!call->name || !call->class ||
198 (!call->class->probe && !call->class->reg))
175 continue; 199 continue;
176 200
177 if (match && 201 if (match &&
178 strcmp(match, call->name) != 0 && 202 strcmp(match, call->name) != 0 &&
179 strcmp(match, call->system) != 0) 203 strcmp(match, call->class->system) != 0)
180 continue; 204 continue;
181 205
182 if (sub && strcmp(sub, call->system) != 0) 206 if (sub && strcmp(sub, call->class->system) != 0)
183 continue; 207 continue;
184 208
185 if (event && strcmp(event, call->name) != 0) 209 if (event && strcmp(event, call->name) != 0)
@@ -297,7 +321,7 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
297 * The ftrace subsystem is for showing formats only. 321 * The ftrace subsystem is for showing formats only.
298 * They can not be enabled or disabled via the event files. 322 * They can not be enabled or disabled via the event files.
299 */ 323 */
300 if (call->regfunc) 324 if (call->class && (call->class->probe || call->class->reg))
301 return call; 325 return call;
302 } 326 }
303 327
@@ -328,7 +352,7 @@ s_next(struct seq_file *m, void *v, loff_t *pos)
328 (*pos)++; 352 (*pos)++;
329 353
330 list_for_each_entry_continue(call, &ftrace_events, list) { 354 list_for_each_entry_continue(call, &ftrace_events, list) {
331 if (call->enabled) 355 if (call->flags & TRACE_EVENT_FL_ENABLED)
332 return call; 356 return call;
333 } 357 }
334 358
@@ -355,8 +379,8 @@ static int t_show(struct seq_file *m, void *v)
355{ 379{
356 struct ftrace_event_call *call = v; 380 struct ftrace_event_call *call = v;
357 381
358 if (strcmp(call->system, TRACE_SYSTEM) != 0) 382 if (strcmp(call->class->system, TRACE_SYSTEM) != 0)
359 seq_printf(m, "%s:", call->system); 383 seq_printf(m, "%s:", call->class->system);
360 seq_printf(m, "%s\n", call->name); 384 seq_printf(m, "%s\n", call->name);
361 385
362 return 0; 386 return 0;
@@ -387,7 +411,7 @@ event_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
387 struct ftrace_event_call *call = filp->private_data; 411 struct ftrace_event_call *call = filp->private_data;
388 char *buf; 412 char *buf;
389 413
390 if (call->enabled) 414 if (call->flags & TRACE_EVENT_FL_ENABLED)
391 buf = "1\n"; 415 buf = "1\n";
392 else 416 else
393 buf = "0\n"; 417 buf = "0\n";
@@ -450,10 +474,11 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
450 474
451 mutex_lock(&event_mutex); 475 mutex_lock(&event_mutex);
452 list_for_each_entry(call, &ftrace_events, list) { 476 list_for_each_entry(call, &ftrace_events, list) {
453 if (!call->name || !call->regfunc) 477 if (!call->name || !call->class ||
478 (!call->class->probe && !call->class->reg))
454 continue; 479 continue;
455 480
456 if (system && strcmp(call->system, system) != 0) 481 if (system && strcmp(call->class->system, system) != 0)
457 continue; 482 continue;
458 483
459 /* 484 /*
@@ -461,7 +486,7 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
461 * or if all events or cleared, or if we have 486 * or if all events or cleared, or if we have
462 * a mixture. 487 * a mixture.
463 */ 488 */
464 set |= (1 << !!call->enabled); 489 set |= (1 << !!(call->flags & TRACE_EVENT_FL_ENABLED));
465 490
466 /* 491 /*
467 * If we have a mixture, no need to look further. 492 * If we have a mixture, no need to look further.
@@ -525,6 +550,7 @@ event_format_read(struct file *filp, char __user *ubuf, size_t cnt,
525{ 550{
526 struct ftrace_event_call *call = filp->private_data; 551 struct ftrace_event_call *call = filp->private_data;
527 struct ftrace_event_field *field; 552 struct ftrace_event_field *field;
553 struct list_head *head;
528 struct trace_seq *s; 554 struct trace_seq *s;
529 int common_field_count = 5; 555 int common_field_count = 5;
530 char *buf; 556 char *buf;
@@ -540,10 +566,11 @@ event_format_read(struct file *filp, char __user *ubuf, size_t cnt,
540 trace_seq_init(s); 566 trace_seq_init(s);
541 567
542 trace_seq_printf(s, "name: %s\n", call->name); 568 trace_seq_printf(s, "name: %s\n", call->name);
543 trace_seq_printf(s, "ID: %d\n", call->id); 569 trace_seq_printf(s, "ID: %d\n", call->event.type);
544 trace_seq_printf(s, "format:\n"); 570 trace_seq_printf(s, "format:\n");
545 571
546 list_for_each_entry_reverse(field, &call->fields, link) { 572 head = trace_get_fields(call);
573 list_for_each_entry_reverse(field, head, link) {
547 /* 574 /*
548 * Smartly shows the array type(except dynamic array). 575 * Smartly shows the array type(except dynamic array).
549 * Normal: 576 * Normal:
@@ -613,7 +640,7 @@ event_id_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)
613 return -ENOMEM; 640 return -ENOMEM;
614 641
615 trace_seq_init(s); 642 trace_seq_init(s);
616 trace_seq_printf(s, "%d\n", call->id); 643 trace_seq_printf(s, "%d\n", call->event.type);
617 644
618 r = simple_read_from_buffer(ubuf, cnt, ppos, 645 r = simple_read_from_buffer(ubuf, cnt, ppos,
619 s->buffer, s->len); 646 s->buffer, s->len);
@@ -919,14 +946,15 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
919 const struct file_operations *filter, 946 const struct file_operations *filter,
920 const struct file_operations *format) 947 const struct file_operations *format)
921{ 948{
949 struct list_head *head;
922 int ret; 950 int ret;
923 951
924 /* 952 /*
925 * If the trace point header did not define TRACE_SYSTEM 953 * If the trace point header did not define TRACE_SYSTEM
926 * then the system would be called "TRACE_SYSTEM". 954 * then the system would be called "TRACE_SYSTEM".
927 */ 955 */
928 if (strcmp(call->system, TRACE_SYSTEM) != 0) 956 if (strcmp(call->class->system, TRACE_SYSTEM) != 0)
929 d_events = event_subsystem_dir(call->system, d_events); 957 d_events = event_subsystem_dir(call->class->system, d_events);
930 958
931 call->dir = debugfs_create_dir(call->name, d_events); 959 call->dir = debugfs_create_dir(call->name, d_events);
932 if (!call->dir) { 960 if (!call->dir) {
@@ -935,22 +963,31 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
935 return -1; 963 return -1;
936 } 964 }
937 965
938 if (call->regfunc) 966 if (call->class->probe || call->class->reg)
939 trace_create_file("enable", 0644, call->dir, call, 967 trace_create_file("enable", 0644, call->dir, call,
940 enable); 968 enable);
941 969
942 if (call->id && call->perf_event_enable) 970#ifdef CONFIG_PERF_EVENTS
971 if (call->event.type && (call->class->perf_probe || call->class->reg))
943 trace_create_file("id", 0444, call->dir, call, 972 trace_create_file("id", 0444, call->dir, call,
944 id); 973 id);
974#endif
945 975
946 if (call->define_fields) { 976 if (call->class->define_fields) {
947 ret = trace_define_common_fields(call); 977 /*
948 if (!ret) 978 * Other events may have the same class. Only update
949 ret = call->define_fields(call); 979 * the fields if they are not already defined.
950 if (ret < 0) { 980 */
951 pr_warning("Could not initialize trace point" 981 head = trace_get_fields(call);
952 " events/%s\n", call->name); 982 if (list_empty(head)) {
953 return ret; 983 ret = trace_define_common_fields(call);
984 if (!ret)
985 ret = call->class->define_fields(call);
986 if (ret < 0) {
987 pr_warning("Could not initialize trace point"
988 " events/%s\n", call->name);
989 return ret;
990 }
954 } 991 }
955 trace_create_file("filter", 0644, call->dir, call, 992 trace_create_file("filter", 0644, call->dir, call,
956 filter); 993 filter);
@@ -970,8 +1007,8 @@ static int __trace_add_event_call(struct ftrace_event_call *call)
970 if (!call->name) 1007 if (!call->name)
971 return -EINVAL; 1008 return -EINVAL;
972 1009
973 if (call->raw_init) { 1010 if (call->class->raw_init) {
974 ret = call->raw_init(call); 1011 ret = call->class->raw_init(call);
975 if (ret < 0) { 1012 if (ret < 0) {
976 if (ret != -ENOSYS) 1013 if (ret != -ENOSYS)
977 pr_warning("Could not initialize trace " 1014 pr_warning("Could not initialize trace "
@@ -1035,13 +1072,13 @@ static void remove_subsystem_dir(const char *name)
1035static void __trace_remove_event_call(struct ftrace_event_call *call) 1072static void __trace_remove_event_call(struct ftrace_event_call *call)
1036{ 1073{
1037 ftrace_event_enable_disable(call, 0); 1074 ftrace_event_enable_disable(call, 0);
1038 if (call->event) 1075 if (call->event.funcs)
1039 __unregister_ftrace_event(call->event); 1076 __unregister_ftrace_event(&call->event);
1040 debugfs_remove_recursive(call->dir); 1077 debugfs_remove_recursive(call->dir);
1041 list_del(&call->list); 1078 list_del(&call->list);
1042 trace_destroy_fields(call); 1079 trace_destroy_fields(call);
1043 destroy_preds(call); 1080 destroy_preds(call);
1044 remove_subsystem_dir(call->system); 1081 remove_subsystem_dir(call->class->system);
1045} 1082}
1046 1083
1047/* Remove an event_call */ 1084/* Remove an event_call */
@@ -1132,8 +1169,8 @@ static void trace_module_add_events(struct module *mod)
1132 /* The linker may leave blanks */ 1169 /* The linker may leave blanks */
1133 if (!call->name) 1170 if (!call->name)
1134 continue; 1171 continue;
1135 if (call->raw_init) { 1172 if (call->class->raw_init) {
1136 ret = call->raw_init(call); 1173 ret = call->class->raw_init(call);
1137 if (ret < 0) { 1174 if (ret < 0) {
1138 if (ret != -ENOSYS) 1175 if (ret != -ENOSYS)
1139 pr_warning("Could not initialize trace " 1176 pr_warning("Could not initialize trace "
@@ -1286,8 +1323,8 @@ static __init int event_trace_init(void)
1286 /* The linker may leave blanks */ 1323 /* The linker may leave blanks */
1287 if (!call->name) 1324 if (!call->name)
1288 continue; 1325 continue;
1289 if (call->raw_init) { 1326 if (call->class->raw_init) {
1290 ret = call->raw_init(call); 1327 ret = call->class->raw_init(call);
1291 if (ret < 0) { 1328 if (ret < 0) {
1292 if (ret != -ENOSYS) 1329 if (ret != -ENOSYS)
1293 pr_warning("Could not initialize trace " 1330 pr_warning("Could not initialize trace "
@@ -1388,8 +1425,8 @@ static __init void event_trace_self_tests(void)
1388 1425
1389 list_for_each_entry(call, &ftrace_events, list) { 1426 list_for_each_entry(call, &ftrace_events, list) {
1390 1427
1391 /* Only test those that have a regfunc */ 1428 /* Only test those that have a probe */
1392 if (!call->regfunc) 1429 if (!call->class || !call->class->probe)
1393 continue; 1430 continue;
1394 1431
1395/* 1432/*
@@ -1399,8 +1436,8 @@ static __init void event_trace_self_tests(void)
1399 * syscalls as we test. 1436 * syscalls as we test.
1400 */ 1437 */
1401#ifndef CONFIG_EVENT_TRACE_TEST_SYSCALLS 1438#ifndef CONFIG_EVENT_TRACE_TEST_SYSCALLS
1402 if (call->system && 1439 if (call->class->system &&
1403 strcmp(call->system, "syscalls") == 0) 1440 strcmp(call->class->system, "syscalls") == 0)
1404 continue; 1441 continue;
1405#endif 1442#endif
1406 1443
@@ -1410,7 +1447,7 @@ static __init void event_trace_self_tests(void)
1410 * If an event is already enabled, someone is using 1447 * If an event is already enabled, someone is using
1411 * it and the self test should not be on. 1448 * it and the self test should not be on.
1412 */ 1449 */
1413 if (call->enabled) { 1450 if (call->flags & TRACE_EVENT_FL_ENABLED) {
1414 pr_warning("Enabled event during self test!\n"); 1451 pr_warning("Enabled event during self test!\n");
1415 WARN_ON_ONCE(1); 1452 WARN_ON_ONCE(1);
1416 continue; 1453 continue;
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 58092d844a1f..57bb1bb32999 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -500,8 +500,10 @@ static struct ftrace_event_field *
500find_event_field(struct ftrace_event_call *call, char *name) 500find_event_field(struct ftrace_event_call *call, char *name)
501{ 501{
502 struct ftrace_event_field *field; 502 struct ftrace_event_field *field;
503 struct list_head *head;
503 504
504 list_for_each_entry(field, &call->fields, link) { 505 head = trace_get_fields(call);
506 list_for_each_entry(field, head, link) {
505 if (!strcmp(field->name, name)) 507 if (!strcmp(field->name, name))
506 return field; 508 return field;
507 } 509 }
@@ -545,7 +547,7 @@ static void filter_disable_preds(struct ftrace_event_call *call)
545 struct event_filter *filter = call->filter; 547 struct event_filter *filter = call->filter;
546 int i; 548 int i;
547 549
548 call->filter_active = 0; 550 call->flags &= ~TRACE_EVENT_FL_FILTERED;
549 filter->n_preds = 0; 551 filter->n_preds = 0;
550 552
551 for (i = 0; i < MAX_FILTER_PRED; i++) 553 for (i = 0; i < MAX_FILTER_PRED; i++)
@@ -572,7 +574,7 @@ void destroy_preds(struct ftrace_event_call *call)
572{ 574{
573 __free_preds(call->filter); 575 __free_preds(call->filter);
574 call->filter = NULL; 576 call->filter = NULL;
575 call->filter_active = 0; 577 call->flags &= ~TRACE_EVENT_FL_FILTERED;
576} 578}
577 579
578static struct event_filter *__alloc_preds(void) 580static struct event_filter *__alloc_preds(void)
@@ -611,7 +613,7 @@ static int init_preds(struct ftrace_event_call *call)
611 if (call->filter) 613 if (call->filter)
612 return 0; 614 return 0;
613 615
614 call->filter_active = 0; 616 call->flags &= ~TRACE_EVENT_FL_FILTERED;
615 call->filter = __alloc_preds(); 617 call->filter = __alloc_preds();
616 if (IS_ERR(call->filter)) 618 if (IS_ERR(call->filter))
617 return PTR_ERR(call->filter); 619 return PTR_ERR(call->filter);
@@ -625,10 +627,10 @@ static int init_subsystem_preds(struct event_subsystem *system)
625 int err; 627 int err;
626 628
627 list_for_each_entry(call, &ftrace_events, list) { 629 list_for_each_entry(call, &ftrace_events, list) {
628 if (!call->define_fields) 630 if (!call->class || !call->class->define_fields)
629 continue; 631 continue;
630 632
631 if (strcmp(call->system, system->name) != 0) 633 if (strcmp(call->class->system, system->name) != 0)
632 continue; 634 continue;
633 635
634 err = init_preds(call); 636 err = init_preds(call);
@@ -644,10 +646,10 @@ static void filter_free_subsystem_preds(struct event_subsystem *system)
644 struct ftrace_event_call *call; 646 struct ftrace_event_call *call;
645 647
646 list_for_each_entry(call, &ftrace_events, list) { 648 list_for_each_entry(call, &ftrace_events, list) {
647 if (!call->define_fields) 649 if (!call->class || !call->class->define_fields)
648 continue; 650 continue;
649 651
650 if (strcmp(call->system, system->name) != 0) 652 if (strcmp(call->class->system, system->name) != 0)
651 continue; 653 continue;
652 654
653 filter_disable_preds(call); 655 filter_disable_preds(call);
@@ -1249,10 +1251,10 @@ static int replace_system_preds(struct event_subsystem *system,
1249 list_for_each_entry(call, &ftrace_events, list) { 1251 list_for_each_entry(call, &ftrace_events, list) {
1250 struct event_filter *filter = call->filter; 1252 struct event_filter *filter = call->filter;
1251 1253
1252 if (!call->define_fields) 1254 if (!call->class || !call->class->define_fields)
1253 continue; 1255 continue;
1254 1256
1255 if (strcmp(call->system, system->name) != 0) 1257 if (strcmp(call->class->system, system->name) != 0)
1256 continue; 1258 continue;
1257 1259
1258 /* try to see if the filter can be applied */ 1260 /* try to see if the filter can be applied */
@@ -1266,7 +1268,7 @@ static int replace_system_preds(struct event_subsystem *system,
1266 if (err) 1268 if (err)
1267 filter_disable_preds(call); 1269 filter_disable_preds(call);
1268 else { 1270 else {
1269 call->filter_active = 1; 1271 call->flags |= TRACE_EVENT_FL_FILTERED;
1270 replace_filter_string(filter, filter_string); 1272 replace_filter_string(filter, filter_string);
1271 } 1273 }
1272 fail = false; 1274 fail = false;
@@ -1315,7 +1317,7 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
1315 if (err) 1317 if (err)
1316 append_filter_err(ps, call->filter); 1318 append_filter_err(ps, call->filter);
1317 else 1319 else
1318 call->filter_active = 1; 1320 call->flags |= TRACE_EVENT_FL_FILTERED;
1319out: 1321out:
1320 filter_opstack_clear(ps); 1322 filter_opstack_clear(ps);
1321 postfix_clear(ps); 1323 postfix_clear(ps);
@@ -1393,7 +1395,7 @@ int ftrace_profile_set_filter(struct perf_event *event, int event_id,
1393 mutex_lock(&event_mutex); 1395 mutex_lock(&event_mutex);
1394 1396
1395 list_for_each_entry(call, &ftrace_events, list) { 1397 list_for_each_entry(call, &ftrace_events, list) {
1396 if (call->id == event_id) 1398 if (call->event.type == event_id)
1397 break; 1399 break;
1398 } 1400 }
1399 1401
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index e091f64ba6ce..8536e2a65969 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -127,7 +127,7 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call) \
127 127
128static int ftrace_raw_init_event(struct ftrace_event_call *call) 128static int ftrace_raw_init_event(struct ftrace_event_call *call)
129{ 129{
130 INIT_LIST_HEAD(&call->fields); 130 INIT_LIST_HEAD(&call->class->fields);
131 return 0; 131 return 0;
132} 132}
133 133
@@ -153,17 +153,21 @@ static int ftrace_raw_init_event(struct ftrace_event_call *call)
153#define F_printk(fmt, args...) #fmt ", " __stringify(args) 153#define F_printk(fmt, args...) #fmt ", " __stringify(args)
154 154
155#undef FTRACE_ENTRY 155#undef FTRACE_ENTRY
156#define FTRACE_ENTRY(call, struct_name, type, tstruct, print) \ 156#define FTRACE_ENTRY(call, struct_name, etype, tstruct, print) \
157 \
158struct ftrace_event_class event_class_ftrace_##call = { \
159 .system = __stringify(TRACE_SYSTEM), \
160 .define_fields = ftrace_define_fields_##call, \
161 .raw_init = ftrace_raw_init_event, \
162}; \
157 \ 163 \
158struct ftrace_event_call __used \ 164struct ftrace_event_call __used \
159__attribute__((__aligned__(4))) \ 165__attribute__((__aligned__(4))) \
160__attribute__((section("_ftrace_events"))) event_##call = { \ 166__attribute__((section("_ftrace_events"))) event_##call = { \
161 .name = #call, \ 167 .name = #call, \
162 .id = type, \ 168 .event.type = etype, \
163 .system = __stringify(TRACE_SYSTEM), \ 169 .class = &event_class_ftrace_##call, \
164 .raw_init = ftrace_raw_init_event, \
165 .print_fmt = print, \ 170 .print_fmt = print, \
166 .define_fields = ftrace_define_fields_##call, \
167}; \ 171}; \
168 172
169#include "trace_entries.h" 173#include "trace_entries.h"
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index dd11c830eb84..79f4bac99a94 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -1025,7 +1025,7 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent,
1025 if (!event) 1025 if (!event)
1026 return TRACE_TYPE_UNHANDLED; 1026 return TRACE_TYPE_UNHANDLED;
1027 1027
1028 ret = event->trace(iter, sym_flags); 1028 ret = event->funcs->trace(iter, sym_flags, event);
1029 if (ret != TRACE_TYPE_HANDLED) 1029 if (ret != TRACE_TYPE_HANDLED)
1030 return ret; 1030 return ret;
1031 } 1031 }
@@ -1112,7 +1112,8 @@ print_graph_function(struct trace_iterator *iter)
1112} 1112}
1113 1113
1114static enum print_line_t 1114static enum print_line_t
1115print_graph_function_event(struct trace_iterator *iter, int flags) 1115print_graph_function_event(struct trace_iterator *iter, int flags,
1116 struct trace_event *event)
1116{ 1117{
1117 return print_graph_function(iter); 1118 return print_graph_function(iter);
1118} 1119}
@@ -1225,14 +1226,18 @@ void graph_trace_close(struct trace_iterator *iter)
1225 } 1226 }
1226} 1227}
1227 1228
1229static struct trace_event_functions graph_functions = {
1230 .trace = print_graph_function_event,
1231};
1232
1228static struct trace_event graph_trace_entry_event = { 1233static struct trace_event graph_trace_entry_event = {
1229 .type = TRACE_GRAPH_ENT, 1234 .type = TRACE_GRAPH_ENT,
1230 .trace = print_graph_function_event, 1235 .funcs = &graph_functions,
1231}; 1236};
1232 1237
1233static struct trace_event graph_trace_ret_event = { 1238static struct trace_event graph_trace_ret_event = {
1234 .type = TRACE_GRAPH_RET, 1239 .type = TRACE_GRAPH_RET,
1235 .trace = print_graph_function_event, 1240 .funcs = &graph_functions
1236}; 1241};
1237 1242
1238static struct tracer graph_trace __read_mostly = { 1243static struct tracer graph_trace __read_mostly = {
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 4681f60dac00..faf7cefd15da 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -324,8 +324,8 @@ struct trace_probe {
324 unsigned long nhit; 324 unsigned long nhit;
325 unsigned int flags; /* For TP_FLAG_* */ 325 unsigned int flags; /* For TP_FLAG_* */
326 const char *symbol; /* symbol name */ 326 const char *symbol; /* symbol name */
327 struct ftrace_event_class class;
327 struct ftrace_event_call call; 328 struct ftrace_event_call call;
328 struct trace_event event;
329 ssize_t size; /* trace entry size */ 329 ssize_t size; /* trace entry size */
330 unsigned int nr_args; 330 unsigned int nr_args;
331 struct probe_arg args[]; 331 struct probe_arg args[];
@@ -404,6 +404,7 @@ static struct trace_probe *alloc_trace_probe(const char *group,
404 goto error; 404 goto error;
405 } 405 }
406 406
407 tp->call.class = &tp->class;
407 tp->call.name = kstrdup(event, GFP_KERNEL); 408 tp->call.name = kstrdup(event, GFP_KERNEL);
408 if (!tp->call.name) 409 if (!tp->call.name)
409 goto error; 410 goto error;
@@ -413,8 +414,8 @@ static struct trace_probe *alloc_trace_probe(const char *group,
413 goto error; 414 goto error;
414 } 415 }
415 416
416 tp->call.system = kstrdup(group, GFP_KERNEL); 417 tp->class.system = kstrdup(group, GFP_KERNEL);
417 if (!tp->call.system) 418 if (!tp->class.system)
418 goto error; 419 goto error;
419 420
420 INIT_LIST_HEAD(&tp->list); 421 INIT_LIST_HEAD(&tp->list);
@@ -443,7 +444,7 @@ static void free_trace_probe(struct trace_probe *tp)
443 for (i = 0; i < tp->nr_args; i++) 444 for (i = 0; i < tp->nr_args; i++)
444 free_probe_arg(&tp->args[i]); 445 free_probe_arg(&tp->args[i]);
445 446
446 kfree(tp->call.system); 447 kfree(tp->call.class->system);
447 kfree(tp->call.name); 448 kfree(tp->call.name);
448 kfree(tp->symbol); 449 kfree(tp->symbol);
449 kfree(tp); 450 kfree(tp);
@@ -456,7 +457,7 @@ static struct trace_probe *find_probe_event(const char *event,
456 457
457 list_for_each_entry(tp, &probe_list, list) 458 list_for_each_entry(tp, &probe_list, list)
458 if (strcmp(tp->call.name, event) == 0 && 459 if (strcmp(tp->call.name, event) == 0 &&
459 strcmp(tp->call.system, group) == 0) 460 strcmp(tp->call.class->system, group) == 0)
460 return tp; 461 return tp;
461 return NULL; 462 return NULL;
462} 463}
@@ -481,7 +482,7 @@ static int register_trace_probe(struct trace_probe *tp)
481 mutex_lock(&probe_lock); 482 mutex_lock(&probe_lock);
482 483
483 /* register as an event */ 484 /* register as an event */
484 old_tp = find_probe_event(tp->call.name, tp->call.system); 485 old_tp = find_probe_event(tp->call.name, tp->call.class->system);
485 if (old_tp) { 486 if (old_tp) {
486 /* delete old event */ 487 /* delete old event */
487 unregister_trace_probe(old_tp); 488 unregister_trace_probe(old_tp);
@@ -904,7 +905,7 @@ static int probes_seq_show(struct seq_file *m, void *v)
904 int i; 905 int i;
905 906
906 seq_printf(m, "%c", probe_is_return(tp) ? 'r' : 'p'); 907 seq_printf(m, "%c", probe_is_return(tp) ? 'r' : 'p');
907 seq_printf(m, ":%s/%s", tp->call.system, tp->call.name); 908 seq_printf(m, ":%s/%s", tp->call.class->system, tp->call.name);
908 909
909 if (!tp->symbol) 910 if (!tp->symbol)
910 seq_printf(m, " 0x%p", tp->rp.kp.addr); 911 seq_printf(m, " 0x%p", tp->rp.kp.addr);
@@ -1061,8 +1062,8 @@ static __kprobes void kprobe_trace_func(struct kprobe *kp, struct pt_regs *regs)
1061 1062
1062 size = sizeof(*entry) + tp->size; 1063 size = sizeof(*entry) + tp->size;
1063 1064
1064 event = trace_current_buffer_lock_reserve(&buffer, call->id, size, 1065 event = trace_current_buffer_lock_reserve(&buffer, call->event.type,
1065 irq_flags, pc); 1066 size, irq_flags, pc);
1066 if (!event) 1067 if (!event)
1067 return; 1068 return;
1068 1069
@@ -1094,8 +1095,8 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri,
1094 1095
1095 size = sizeof(*entry) + tp->size; 1096 size = sizeof(*entry) + tp->size;
1096 1097
1097 event = trace_current_buffer_lock_reserve(&buffer, call->id, size, 1098 event = trace_current_buffer_lock_reserve(&buffer, call->event.type,
1098 irq_flags, pc); 1099 size, irq_flags, pc);
1099 if (!event) 1100 if (!event)
1100 return; 1101 return;
1101 1102
@@ -1112,18 +1113,17 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri,
1112 1113
1113/* Event entry printers */ 1114/* Event entry printers */
1114enum print_line_t 1115enum print_line_t
1115print_kprobe_event(struct trace_iterator *iter, int flags) 1116print_kprobe_event(struct trace_iterator *iter, int flags,
1117 struct trace_event *event)
1116{ 1118{
1117 struct kprobe_trace_entry_head *field; 1119 struct kprobe_trace_entry_head *field;
1118 struct trace_seq *s = &iter->seq; 1120 struct trace_seq *s = &iter->seq;
1119 struct trace_event *event;
1120 struct trace_probe *tp; 1121 struct trace_probe *tp;
1121 u8 *data; 1122 u8 *data;
1122 int i; 1123 int i;
1123 1124
1124 field = (struct kprobe_trace_entry_head *)iter->ent; 1125 field = (struct kprobe_trace_entry_head *)iter->ent;
1125 event = ftrace_find_event(field->ent.type); 1126 tp = container_of(event, struct trace_probe, call.event);
1126 tp = container_of(event, struct trace_probe, event);
1127 1127
1128 if (!trace_seq_printf(s, "%s: (", tp->call.name)) 1128 if (!trace_seq_printf(s, "%s: (", tp->call.name))
1129 goto partial; 1129 goto partial;
@@ -1149,18 +1149,17 @@ partial:
1149} 1149}
1150 1150
1151enum print_line_t 1151enum print_line_t
1152print_kretprobe_event(struct trace_iterator *iter, int flags) 1152print_kretprobe_event(struct trace_iterator *iter, int flags,
1153 struct trace_event *event)
1153{ 1154{
1154 struct kretprobe_trace_entry_head *field; 1155 struct kretprobe_trace_entry_head *field;
1155 struct trace_seq *s = &iter->seq; 1156 struct trace_seq *s = &iter->seq;
1156 struct trace_event *event;
1157 struct trace_probe *tp; 1157 struct trace_probe *tp;
1158 u8 *data; 1158 u8 *data;
1159 int i; 1159 int i;
1160 1160
1161 field = (struct kretprobe_trace_entry_head *)iter->ent; 1161 field = (struct kretprobe_trace_entry_head *)iter->ent;
1162 event = ftrace_find_event(field->ent.type); 1162 tp = container_of(event, struct trace_probe, call.event);
1163 tp = container_of(event, struct trace_probe, event);
1164 1163
1165 if (!trace_seq_printf(s, "%s: (", tp->call.name)) 1164 if (!trace_seq_printf(s, "%s: (", tp->call.name))
1166 goto partial; 1165 goto partial;
@@ -1217,8 +1216,6 @@ static void probe_event_disable(struct ftrace_event_call *call)
1217 1216
1218static int probe_event_raw_init(struct ftrace_event_call *event_call) 1217static int probe_event_raw_init(struct ftrace_event_call *event_call)
1219{ 1218{
1220 INIT_LIST_HEAD(&event_call->fields);
1221
1222 return 0; 1219 return 0;
1223} 1220}
1224 1221
@@ -1353,7 +1350,7 @@ static __kprobes void kprobe_perf_func(struct kprobe *kp,
1353 "profile buffer not large enough")) 1350 "profile buffer not large enough"))
1354 return; 1351 return;
1355 1352
1356 entry = perf_trace_buf_prepare(size, call->id, regs, &rctx); 1353 entry = perf_trace_buf_prepare(size, call->event.type, regs, &rctx);
1357 if (!entry) 1354 if (!entry)
1358 return; 1355 return;
1359 1356
@@ -1385,7 +1382,7 @@ static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri,
1385 "profile buffer not large enough")) 1382 "profile buffer not large enough"))
1386 return; 1383 return;
1387 1384
1388 entry = perf_trace_buf_prepare(size, call->id, regs, &rctx); 1385 entry = perf_trace_buf_prepare(size, call->event.type, regs, &rctx);
1389 if (!entry) 1386 if (!entry)
1390 return; 1387 return;
1391 1388
@@ -1426,6 +1423,26 @@ static void probe_perf_disable(struct ftrace_event_call *call)
1426} 1423}
1427#endif /* CONFIG_PERF_EVENTS */ 1424#endif /* CONFIG_PERF_EVENTS */
1428 1425
1426static __kprobes
1427int kprobe_register(struct ftrace_event_call *event, enum trace_reg type)
1428{
1429 switch (type) {
1430 case TRACE_REG_REGISTER:
1431 return probe_event_enable(event);
1432 case TRACE_REG_UNREGISTER:
1433 probe_event_disable(event);
1434 return 0;
1435
1436#ifdef CONFIG_PERF_EVENTS
1437 case TRACE_REG_PERF_REGISTER:
1438 return probe_perf_enable(event);
1439 case TRACE_REG_PERF_UNREGISTER:
1440 probe_perf_disable(event);
1441 return 0;
1442#endif
1443 }
1444 return 0;
1445}
1429 1446
1430static __kprobes 1447static __kprobes
1431int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs) 1448int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs)
@@ -1455,6 +1472,14 @@ int kretprobe_dispatcher(struct kretprobe_instance *ri, struct pt_regs *regs)
1455 return 0; /* We don't tweek kernel, so just return 0 */ 1472 return 0; /* We don't tweek kernel, so just return 0 */
1456} 1473}
1457 1474
1475static struct trace_event_functions kretprobe_funcs = {
1476 .trace = print_kretprobe_event
1477};
1478
1479static struct trace_event_functions kprobe_funcs = {
1480 .trace = print_kprobe_event
1481};
1482
1458static int register_probe_event(struct trace_probe *tp) 1483static int register_probe_event(struct trace_probe *tp)
1459{ 1484{
1460 struct ftrace_event_call *call = &tp->call; 1485 struct ftrace_event_call *call = &tp->call;
@@ -1462,36 +1487,31 @@ static int register_probe_event(struct trace_probe *tp)
1462 1487
1463 /* Initialize ftrace_event_call */ 1488 /* Initialize ftrace_event_call */
1464 if (probe_is_return(tp)) { 1489 if (probe_is_return(tp)) {
1465 tp->event.trace = print_kretprobe_event; 1490 INIT_LIST_HEAD(&call->class->fields);
1466 call->raw_init = probe_event_raw_init; 1491 call->event.funcs = &kretprobe_funcs;
1467 call->define_fields = kretprobe_event_define_fields; 1492 call->class->raw_init = probe_event_raw_init;
1493 call->class->define_fields = kretprobe_event_define_fields;
1468 } else { 1494 } else {
1469 tp->event.trace = print_kprobe_event; 1495 INIT_LIST_HEAD(&call->class->fields);
1470 call->raw_init = probe_event_raw_init; 1496 call->event.funcs = &kprobe_funcs;
1471 call->define_fields = kprobe_event_define_fields; 1497 call->class->raw_init = probe_event_raw_init;
1498 call->class->define_fields = kprobe_event_define_fields;
1472 } 1499 }
1473 if (set_print_fmt(tp) < 0) 1500 if (set_print_fmt(tp) < 0)
1474 return -ENOMEM; 1501 return -ENOMEM;
1475 call->event = &tp->event; 1502 ret = register_ftrace_event(&call->event);
1476 call->id = register_ftrace_event(&tp->event); 1503 if (!ret) {
1477 if (!call->id) {
1478 kfree(call->print_fmt); 1504 kfree(call->print_fmt);
1479 return -ENODEV; 1505 return -ENODEV;
1480 } 1506 }
1481 call->enabled = 0; 1507 call->flags = 0;
1482 call->regfunc = probe_event_enable; 1508 call->class->reg = kprobe_register;
1483 call->unregfunc = probe_event_disable;
1484
1485#ifdef CONFIG_PERF_EVENTS
1486 call->perf_event_enable = probe_perf_enable;
1487 call->perf_event_disable = probe_perf_disable;
1488#endif
1489 call->data = tp; 1509 call->data = tp;
1490 ret = trace_add_event_call(call); 1510 ret = trace_add_event_call(call);
1491 if (ret) { 1511 if (ret) {
1492 pr_info("Failed to register kprobe event: %s\n", call->name); 1512 pr_info("Failed to register kprobe event: %s\n", call->name);
1493 kfree(call->print_fmt); 1513 kfree(call->print_fmt);
1494 unregister_ftrace_event(&tp->event); 1514 unregister_ftrace_event(&call->event);
1495 } 1515 }
1496 return ret; 1516 return ret;
1497} 1517}
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 2404c129a8c9..fc9d4dbb089e 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -726,6 +726,9 @@ int register_ftrace_event(struct trace_event *event)
726 if (WARN_ON(!event)) 726 if (WARN_ON(!event))
727 goto out; 727 goto out;
728 728
729 if (WARN_ON(!event->funcs))
730 goto out;
731
729 INIT_LIST_HEAD(&event->list); 732 INIT_LIST_HEAD(&event->list);
730 733
731 if (!event->type) { 734 if (!event->type) {
@@ -758,14 +761,14 @@ int register_ftrace_event(struct trace_event *event)
758 goto out; 761 goto out;
759 } 762 }
760 763
761 if (event->trace == NULL) 764 if (event->funcs->trace == NULL)
762 event->trace = trace_nop_print; 765 event->funcs->trace = trace_nop_print;
763 if (event->raw == NULL) 766 if (event->funcs->raw == NULL)
764 event->raw = trace_nop_print; 767 event->funcs->raw = trace_nop_print;
765 if (event->hex == NULL) 768 if (event->funcs->hex == NULL)
766 event->hex = trace_nop_print; 769 event->funcs->hex = trace_nop_print;
767 if (event->binary == NULL) 770 if (event->funcs->binary == NULL)
768 event->binary = trace_nop_print; 771 event->funcs->binary = trace_nop_print;
769 772
770 key = event->type & (EVENT_HASHSIZE - 1); 773 key = event->type & (EVENT_HASHSIZE - 1);
771 774
@@ -807,13 +810,15 @@ EXPORT_SYMBOL_GPL(unregister_ftrace_event);
807 * Standard events 810 * Standard events
808 */ 811 */
809 812
810enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags) 813enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags,
814 struct trace_event *event)
811{ 815{
812 return TRACE_TYPE_HANDLED; 816 return TRACE_TYPE_HANDLED;
813} 817}
814 818
815/* TRACE_FN */ 819/* TRACE_FN */
816static enum print_line_t trace_fn_trace(struct trace_iterator *iter, int flags) 820static enum print_line_t trace_fn_trace(struct trace_iterator *iter, int flags,
821 struct trace_event *event)
817{ 822{
818 struct ftrace_entry *field; 823 struct ftrace_entry *field;
819 struct trace_seq *s = &iter->seq; 824 struct trace_seq *s = &iter->seq;
@@ -840,7 +845,8 @@ static enum print_line_t trace_fn_trace(struct trace_iterator *iter, int flags)
840 return TRACE_TYPE_PARTIAL_LINE; 845 return TRACE_TYPE_PARTIAL_LINE;
841} 846}
842 847
843static enum print_line_t trace_fn_raw(struct trace_iterator *iter, int flags) 848static enum print_line_t trace_fn_raw(struct trace_iterator *iter, int flags,
849 struct trace_event *event)
844{ 850{
845 struct ftrace_entry *field; 851 struct ftrace_entry *field;
846 852
@@ -854,7 +860,8 @@ static enum print_line_t trace_fn_raw(struct trace_iterator *iter, int flags)
854 return TRACE_TYPE_HANDLED; 860 return TRACE_TYPE_HANDLED;
855} 861}
856 862
857static enum print_line_t trace_fn_hex(struct trace_iterator *iter, int flags) 863static enum print_line_t trace_fn_hex(struct trace_iterator *iter, int flags,
864 struct trace_event *event)
858{ 865{
859 struct ftrace_entry *field; 866 struct ftrace_entry *field;
860 struct trace_seq *s = &iter->seq; 867 struct trace_seq *s = &iter->seq;
@@ -867,7 +874,8 @@ static enum print_line_t trace_fn_hex(struct trace_iterator *iter, int flags)
867 return TRACE_TYPE_HANDLED; 874 return TRACE_TYPE_HANDLED;
868} 875}
869 876
870static enum print_line_t trace_fn_bin(struct trace_iterator *iter, int flags) 877static enum print_line_t trace_fn_bin(struct trace_iterator *iter, int flags,
878 struct trace_event *event)
871{ 879{
872 struct ftrace_entry *field; 880 struct ftrace_entry *field;
873 struct trace_seq *s = &iter->seq; 881 struct trace_seq *s = &iter->seq;
@@ -880,14 +888,18 @@ static enum print_line_t trace_fn_bin(struct trace_iterator *iter, int flags)
880 return TRACE_TYPE_HANDLED; 888 return TRACE_TYPE_HANDLED;
881} 889}
882 890
883static struct trace_event trace_fn_event = { 891static struct trace_event_functions trace_fn_funcs = {
884 .type = TRACE_FN,
885 .trace = trace_fn_trace, 892 .trace = trace_fn_trace,
886 .raw = trace_fn_raw, 893 .raw = trace_fn_raw,
887 .hex = trace_fn_hex, 894 .hex = trace_fn_hex,
888 .binary = trace_fn_bin, 895 .binary = trace_fn_bin,
889}; 896};
890 897
898static struct trace_event trace_fn_event = {
899 .type = TRACE_FN,
900 .funcs = &trace_fn_funcs,
901};
902
891/* TRACE_CTX an TRACE_WAKE */ 903/* TRACE_CTX an TRACE_WAKE */
892static enum print_line_t trace_ctxwake_print(struct trace_iterator *iter, 904static enum print_line_t trace_ctxwake_print(struct trace_iterator *iter,
893 char *delim) 905 char *delim)
@@ -916,13 +928,14 @@ static enum print_line_t trace_ctxwake_print(struct trace_iterator *iter,
916 return TRACE_TYPE_HANDLED; 928 return TRACE_TYPE_HANDLED;
917} 929}
918 930
919static enum print_line_t trace_ctx_print(struct trace_iterator *iter, int flags) 931static enum print_line_t trace_ctx_print(struct trace_iterator *iter, int flags,
932 struct trace_event *event)
920{ 933{
921 return trace_ctxwake_print(iter, "==>"); 934 return trace_ctxwake_print(iter, "==>");
922} 935}
923 936
924static enum print_line_t trace_wake_print(struct trace_iterator *iter, 937static enum print_line_t trace_wake_print(struct trace_iterator *iter,
925 int flags) 938 int flags, struct trace_event *event)
926{ 939{
927 return trace_ctxwake_print(iter, " +"); 940 return trace_ctxwake_print(iter, " +");
928} 941}
@@ -950,12 +963,14 @@ static int trace_ctxwake_raw(struct trace_iterator *iter, char S)
950 return TRACE_TYPE_HANDLED; 963 return TRACE_TYPE_HANDLED;
951} 964}
952 965
953static enum print_line_t trace_ctx_raw(struct trace_iterator *iter, int flags) 966static enum print_line_t trace_ctx_raw(struct trace_iterator *iter, int flags,
967 struct trace_event *event)
954{ 968{
955 return trace_ctxwake_raw(iter, 0); 969 return trace_ctxwake_raw(iter, 0);
956} 970}
957 971
958static enum print_line_t trace_wake_raw(struct trace_iterator *iter, int flags) 972static enum print_line_t trace_wake_raw(struct trace_iterator *iter, int flags,
973 struct trace_event *event)
959{ 974{
960 return trace_ctxwake_raw(iter, '+'); 975 return trace_ctxwake_raw(iter, '+');
961} 976}
@@ -984,18 +999,20 @@ static int trace_ctxwake_hex(struct trace_iterator *iter, char S)
984 return TRACE_TYPE_HANDLED; 999 return TRACE_TYPE_HANDLED;
985} 1000}
986 1001
987static enum print_line_t trace_ctx_hex(struct trace_iterator *iter, int flags) 1002static enum print_line_t trace_ctx_hex(struct trace_iterator *iter, int flags,
1003 struct trace_event *event)
988{ 1004{
989 return trace_ctxwake_hex(iter, 0); 1005 return trace_ctxwake_hex(iter, 0);
990} 1006}
991 1007
992static enum print_line_t trace_wake_hex(struct trace_iterator *iter, int flags) 1008static enum print_line_t trace_wake_hex(struct trace_iterator *iter, int flags,
1009 struct trace_event *event)
993{ 1010{
994 return trace_ctxwake_hex(iter, '+'); 1011 return trace_ctxwake_hex(iter, '+');
995} 1012}
996 1013
997static enum print_line_t trace_ctxwake_bin(struct trace_iterator *iter, 1014static enum print_line_t trace_ctxwake_bin(struct trace_iterator *iter,
998 int flags) 1015 int flags, struct trace_event *event)
999{ 1016{
1000 struct ctx_switch_entry *field; 1017 struct ctx_switch_entry *field;
1001 struct trace_seq *s = &iter->seq; 1018 struct trace_seq *s = &iter->seq;
@@ -1012,25 +1029,33 @@ static enum print_line_t trace_ctxwake_bin(struct trace_iterator *iter,
1012 return TRACE_TYPE_HANDLED; 1029 return TRACE_TYPE_HANDLED;
1013} 1030}
1014 1031
1015static struct trace_event trace_ctx_event = { 1032static struct trace_event_functions trace_ctx_funcs = {
1016 .type = TRACE_CTX,
1017 .trace = trace_ctx_print, 1033 .trace = trace_ctx_print,
1018 .raw = trace_ctx_raw, 1034 .raw = trace_ctx_raw,
1019 .hex = trace_ctx_hex, 1035 .hex = trace_ctx_hex,
1020 .binary = trace_ctxwake_bin, 1036 .binary = trace_ctxwake_bin,
1021}; 1037};
1022 1038
1023static struct trace_event trace_wake_event = { 1039static struct trace_event trace_ctx_event = {
1024 .type = TRACE_WAKE, 1040 .type = TRACE_CTX,
1041 .funcs = &trace_ctx_funcs,
1042};
1043
1044static struct trace_event_functions trace_wake_funcs = {
1025 .trace = trace_wake_print, 1045 .trace = trace_wake_print,
1026 .raw = trace_wake_raw, 1046 .raw = trace_wake_raw,
1027 .hex = trace_wake_hex, 1047 .hex = trace_wake_hex,
1028 .binary = trace_ctxwake_bin, 1048 .binary = trace_ctxwake_bin,
1029}; 1049};
1030 1050
1051static struct trace_event trace_wake_event = {
1052 .type = TRACE_WAKE,
1053 .funcs = &trace_wake_funcs,
1054};
1055
1031/* TRACE_SPECIAL */ 1056/* TRACE_SPECIAL */
1032static enum print_line_t trace_special_print(struct trace_iterator *iter, 1057static enum print_line_t trace_special_print(struct trace_iterator *iter,
1033 int flags) 1058 int flags, struct trace_event *event)
1034{ 1059{
1035 struct special_entry *field; 1060 struct special_entry *field;
1036 1061
@@ -1046,7 +1071,7 @@ static enum print_line_t trace_special_print(struct trace_iterator *iter,
1046} 1071}
1047 1072
1048static enum print_line_t trace_special_hex(struct trace_iterator *iter, 1073static enum print_line_t trace_special_hex(struct trace_iterator *iter,
1049 int flags) 1074 int flags, struct trace_event *event)
1050{ 1075{
1051 struct special_entry *field; 1076 struct special_entry *field;
1052 struct trace_seq *s = &iter->seq; 1077 struct trace_seq *s = &iter->seq;
@@ -1061,7 +1086,7 @@ static enum print_line_t trace_special_hex(struct trace_iterator *iter,
1061} 1086}
1062 1087
1063static enum print_line_t trace_special_bin(struct trace_iterator *iter, 1088static enum print_line_t trace_special_bin(struct trace_iterator *iter,
1064 int flags) 1089 int flags, struct trace_event *event)
1065{ 1090{
1066 struct special_entry *field; 1091 struct special_entry *field;
1067 struct trace_seq *s = &iter->seq; 1092 struct trace_seq *s = &iter->seq;
@@ -1075,18 +1100,22 @@ static enum print_line_t trace_special_bin(struct trace_iterator *iter,
1075 return TRACE_TYPE_HANDLED; 1100 return TRACE_TYPE_HANDLED;
1076} 1101}
1077 1102
1078static struct trace_event trace_special_event = { 1103static struct trace_event_functions trace_special_funcs = {
1079 .type = TRACE_SPECIAL,
1080 .trace = trace_special_print, 1104 .trace = trace_special_print,
1081 .raw = trace_special_print, 1105 .raw = trace_special_print,
1082 .hex = trace_special_hex, 1106 .hex = trace_special_hex,
1083 .binary = trace_special_bin, 1107 .binary = trace_special_bin,
1084}; 1108};
1085 1109
1110static struct trace_event trace_special_event = {
1111 .type = TRACE_SPECIAL,
1112 .funcs = &trace_special_funcs,
1113};
1114
1086/* TRACE_STACK */ 1115/* TRACE_STACK */
1087 1116
1088static enum print_line_t trace_stack_print(struct trace_iterator *iter, 1117static enum print_line_t trace_stack_print(struct trace_iterator *iter,
1089 int flags) 1118 int flags, struct trace_event *event)
1090{ 1119{
1091 struct stack_entry *field; 1120 struct stack_entry *field;
1092 struct trace_seq *s = &iter->seq; 1121 struct trace_seq *s = &iter->seq;
@@ -1114,17 +1143,21 @@ static enum print_line_t trace_stack_print(struct trace_iterator *iter,
1114 return TRACE_TYPE_PARTIAL_LINE; 1143 return TRACE_TYPE_PARTIAL_LINE;
1115} 1144}
1116 1145
1117static struct trace_event trace_stack_event = { 1146static struct trace_event_functions trace_stack_funcs = {
1118 .type = TRACE_STACK,
1119 .trace = trace_stack_print, 1147 .trace = trace_stack_print,
1120 .raw = trace_special_print, 1148 .raw = trace_special_print,
1121 .hex = trace_special_hex, 1149 .hex = trace_special_hex,
1122 .binary = trace_special_bin, 1150 .binary = trace_special_bin,
1123}; 1151};
1124 1152
1153static struct trace_event trace_stack_event = {
1154 .type = TRACE_STACK,
1155 .funcs = &trace_stack_funcs,
1156};
1157
1125/* TRACE_USER_STACK */ 1158/* TRACE_USER_STACK */
1126static enum print_line_t trace_user_stack_print(struct trace_iterator *iter, 1159static enum print_line_t trace_user_stack_print(struct trace_iterator *iter,
1127 int flags) 1160 int flags, struct trace_event *event)
1128{ 1161{
1129 struct userstack_entry *field; 1162 struct userstack_entry *field;
1130 struct trace_seq *s = &iter->seq; 1163 struct trace_seq *s = &iter->seq;
@@ -1143,17 +1176,22 @@ static enum print_line_t trace_user_stack_print(struct trace_iterator *iter,
1143 return TRACE_TYPE_PARTIAL_LINE; 1176 return TRACE_TYPE_PARTIAL_LINE;
1144} 1177}
1145 1178
1146static struct trace_event trace_user_stack_event = { 1179static struct trace_event_functions trace_user_stack_funcs = {
1147 .type = TRACE_USER_STACK,
1148 .trace = trace_user_stack_print, 1180 .trace = trace_user_stack_print,
1149 .raw = trace_special_print, 1181 .raw = trace_special_print,
1150 .hex = trace_special_hex, 1182 .hex = trace_special_hex,
1151 .binary = trace_special_bin, 1183 .binary = trace_special_bin,
1152}; 1184};
1153 1185
1186static struct trace_event trace_user_stack_event = {
1187 .type = TRACE_USER_STACK,
1188 .funcs = &trace_user_stack_funcs,
1189};
1190
1154/* TRACE_BPRINT */ 1191/* TRACE_BPRINT */
1155static enum print_line_t 1192static enum print_line_t
1156trace_bprint_print(struct trace_iterator *iter, int flags) 1193trace_bprint_print(struct trace_iterator *iter, int flags,
1194 struct trace_event *event)
1157{ 1195{
1158 struct trace_entry *entry = iter->ent; 1196 struct trace_entry *entry = iter->ent;
1159 struct trace_seq *s = &iter->seq; 1197 struct trace_seq *s = &iter->seq;
@@ -1178,7 +1216,8 @@ trace_bprint_print(struct trace_iterator *iter, int flags)
1178 1216
1179 1217
1180static enum print_line_t 1218static enum print_line_t
1181trace_bprint_raw(struct trace_iterator *iter, int flags) 1219trace_bprint_raw(struct trace_iterator *iter, int flags,
1220 struct trace_event *event)
1182{ 1221{
1183 struct bprint_entry *field; 1222 struct bprint_entry *field;
1184 struct trace_seq *s = &iter->seq; 1223 struct trace_seq *s = &iter->seq;
@@ -1197,16 +1236,19 @@ trace_bprint_raw(struct trace_iterator *iter, int flags)
1197 return TRACE_TYPE_PARTIAL_LINE; 1236 return TRACE_TYPE_PARTIAL_LINE;
1198} 1237}
1199 1238
1239static struct trace_event_functions trace_bprint_funcs = {
1240 .trace = trace_bprint_print,
1241 .raw = trace_bprint_raw,
1242};
1200 1243
1201static struct trace_event trace_bprint_event = { 1244static struct trace_event trace_bprint_event = {
1202 .type = TRACE_BPRINT, 1245 .type = TRACE_BPRINT,
1203 .trace = trace_bprint_print, 1246 .funcs = &trace_bprint_funcs,
1204 .raw = trace_bprint_raw,
1205}; 1247};
1206 1248
1207/* TRACE_PRINT */ 1249/* TRACE_PRINT */
1208static enum print_line_t trace_print_print(struct trace_iterator *iter, 1250static enum print_line_t trace_print_print(struct trace_iterator *iter,
1209 int flags) 1251 int flags, struct trace_event *event)
1210{ 1252{
1211 struct print_entry *field; 1253 struct print_entry *field;
1212 struct trace_seq *s = &iter->seq; 1254 struct trace_seq *s = &iter->seq;
@@ -1225,7 +1267,8 @@ static enum print_line_t trace_print_print(struct trace_iterator *iter,
1225 return TRACE_TYPE_PARTIAL_LINE; 1267 return TRACE_TYPE_PARTIAL_LINE;
1226} 1268}
1227 1269
1228static enum print_line_t trace_print_raw(struct trace_iterator *iter, int flags) 1270static enum print_line_t trace_print_raw(struct trace_iterator *iter, int flags,
1271 struct trace_event *event)
1229{ 1272{
1230 struct print_entry *field; 1273 struct print_entry *field;
1231 1274
@@ -1240,12 +1283,16 @@ static enum print_line_t trace_print_raw(struct trace_iterator *iter, int flags)
1240 return TRACE_TYPE_PARTIAL_LINE; 1283 return TRACE_TYPE_PARTIAL_LINE;
1241} 1284}
1242 1285
1243static struct trace_event trace_print_event = { 1286static struct trace_event_functions trace_print_funcs = {
1244 .type = TRACE_PRINT,
1245 .trace = trace_print_print, 1287 .trace = trace_print_print,
1246 .raw = trace_print_raw, 1288 .raw = trace_print_raw,
1247}; 1289};
1248 1290
1291static struct trace_event trace_print_event = {
1292 .type = TRACE_PRINT,
1293 .funcs = &trace_print_funcs,
1294};
1295
1249 1296
1250static struct trace_event *events[] __initdata = { 1297static struct trace_event *events[] __initdata = {
1251 &trace_fn_event, 1298 &trace_fn_event,
diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h
index 9d91c72ba38b..c038eba0492b 100644
--- a/kernel/trace/trace_output.h
+++ b/kernel/trace/trace_output.h
@@ -25,7 +25,7 @@ extern void trace_event_read_unlock(void);
25extern struct trace_event *ftrace_find_event(int type); 25extern struct trace_event *ftrace_find_event(int type);
26 26
27extern enum print_line_t trace_nop_print(struct trace_iterator *iter, 27extern enum print_line_t trace_nop_print(struct trace_iterator *iter,
28 int flags); 28 int flags, struct trace_event *event);
29extern int 29extern int
30trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry); 30trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry);
31 31
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index a55fccfede5d..8f758d070c43 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -50,7 +50,7 @@ tracing_sched_switch_trace(struct trace_array *tr,
50} 50}
51 51
52static void 52static void
53probe_sched_switch(struct task_struct *prev, struct task_struct *next) 53probe_sched_switch(void *ignore, struct task_struct *prev, struct task_struct *next)
54{ 54{
55 struct trace_array_cpu *data; 55 struct trace_array_cpu *data;
56 unsigned long flags; 56 unsigned long flags;
@@ -108,7 +108,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
108} 108}
109 109
110static void 110static void
111probe_sched_wakeup(struct task_struct *wakee, int success) 111probe_sched_wakeup(void *ignore, struct task_struct *wakee, int success)
112{ 112{
113 struct trace_array_cpu *data; 113 struct trace_array_cpu *data;
114 unsigned long flags; 114 unsigned long flags;
@@ -138,21 +138,21 @@ static int tracing_sched_register(void)
138{ 138{
139 int ret; 139 int ret;
140 140
141 ret = register_trace_sched_wakeup(probe_sched_wakeup); 141 ret = register_trace_sched_wakeup(probe_sched_wakeup, NULL);
142 if (ret) { 142 if (ret) {
143 pr_info("wakeup trace: Couldn't activate tracepoint" 143 pr_info("wakeup trace: Couldn't activate tracepoint"
144 " probe to kernel_sched_wakeup\n"); 144 " probe to kernel_sched_wakeup\n");
145 return ret; 145 return ret;
146 } 146 }
147 147
148 ret = register_trace_sched_wakeup_new(probe_sched_wakeup); 148 ret = register_trace_sched_wakeup_new(probe_sched_wakeup, NULL);
149 if (ret) { 149 if (ret) {
150 pr_info("wakeup trace: Couldn't activate tracepoint" 150 pr_info("wakeup trace: Couldn't activate tracepoint"
151 " probe to kernel_sched_wakeup_new\n"); 151 " probe to kernel_sched_wakeup_new\n");
152 goto fail_deprobe; 152 goto fail_deprobe;
153 } 153 }
154 154
155 ret = register_trace_sched_switch(probe_sched_switch); 155 ret = register_trace_sched_switch(probe_sched_switch, NULL);
156 if (ret) { 156 if (ret) {
157 pr_info("sched trace: Couldn't activate tracepoint" 157 pr_info("sched trace: Couldn't activate tracepoint"
158 " probe to kernel_sched_switch\n"); 158 " probe to kernel_sched_switch\n");
@@ -161,17 +161,17 @@ static int tracing_sched_register(void)
161 161
162 return ret; 162 return ret;
163fail_deprobe_wake_new: 163fail_deprobe_wake_new:
164 unregister_trace_sched_wakeup_new(probe_sched_wakeup); 164 unregister_trace_sched_wakeup_new(probe_sched_wakeup, NULL);
165fail_deprobe: 165fail_deprobe:
166 unregister_trace_sched_wakeup(probe_sched_wakeup); 166 unregister_trace_sched_wakeup(probe_sched_wakeup, NULL);
167 return ret; 167 return ret;
168} 168}
169 169
170static void tracing_sched_unregister(void) 170static void tracing_sched_unregister(void)
171{ 171{
172 unregister_trace_sched_switch(probe_sched_switch); 172 unregister_trace_sched_switch(probe_sched_switch, NULL);
173 unregister_trace_sched_wakeup_new(probe_sched_wakeup); 173 unregister_trace_sched_wakeup_new(probe_sched_wakeup, NULL);
174 unregister_trace_sched_wakeup(probe_sched_wakeup); 174 unregister_trace_sched_wakeup(probe_sched_wakeup, NULL);
175} 175}
176 176
177static void tracing_start_sched_switch(void) 177static void tracing_start_sched_switch(void)
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 8052446ceeaa..0e73bc2ef8c5 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -98,7 +98,8 @@ static int report_latency(cycle_t delta)
98 return 1; 98 return 1;
99} 99}
100 100
101static void probe_wakeup_migrate_task(struct task_struct *task, int cpu) 101static void
102probe_wakeup_migrate_task(void *ignore, struct task_struct *task, int cpu)
102{ 103{
103 if (task != wakeup_task) 104 if (task != wakeup_task)
104 return; 105 return;
@@ -107,7 +108,8 @@ static void probe_wakeup_migrate_task(struct task_struct *task, int cpu)
107} 108}
108 109
109static void notrace 110static void notrace
110probe_wakeup_sched_switch(struct task_struct *prev, struct task_struct *next) 111probe_wakeup_sched_switch(void *ignore,
112 struct task_struct *prev, struct task_struct *next)
111{ 113{
112 struct trace_array_cpu *data; 114 struct trace_array_cpu *data;
113 cycle_t T0, T1, delta; 115 cycle_t T0, T1, delta;
@@ -199,7 +201,7 @@ static void wakeup_reset(struct trace_array *tr)
199} 201}
200 202
201static void 203static void
202probe_wakeup(struct task_struct *p, int success) 204probe_wakeup(void *ignore, struct task_struct *p, int success)
203{ 205{
204 struct trace_array_cpu *data; 206 struct trace_array_cpu *data;
205 int cpu = smp_processor_id(); 207 int cpu = smp_processor_id();
@@ -263,28 +265,28 @@ static void start_wakeup_tracer(struct trace_array *tr)
263{ 265{
264 int ret; 266 int ret;
265 267
266 ret = register_trace_sched_wakeup(probe_wakeup); 268 ret = register_trace_sched_wakeup(probe_wakeup, NULL);
267 if (ret) { 269 if (ret) {
268 pr_info("wakeup trace: Couldn't activate tracepoint" 270 pr_info("wakeup trace: Couldn't activate tracepoint"
269 " probe to kernel_sched_wakeup\n"); 271 " probe to kernel_sched_wakeup\n");
270 return; 272 return;
271 } 273 }
272 274
273 ret = register_trace_sched_wakeup_new(probe_wakeup); 275 ret = register_trace_sched_wakeup_new(probe_wakeup, NULL);
274 if (ret) { 276 if (ret) {
275 pr_info("wakeup trace: Couldn't activate tracepoint" 277 pr_info("wakeup trace: Couldn't activate tracepoint"
276 " probe to kernel_sched_wakeup_new\n"); 278 " probe to kernel_sched_wakeup_new\n");
277 goto fail_deprobe; 279 goto fail_deprobe;
278 } 280 }
279 281
280 ret = register_trace_sched_switch(probe_wakeup_sched_switch); 282 ret = register_trace_sched_switch(probe_wakeup_sched_switch, NULL);
281 if (ret) { 283 if (ret) {
282 pr_info("sched trace: Couldn't activate tracepoint" 284 pr_info("sched trace: Couldn't activate tracepoint"
283 " probe to kernel_sched_switch\n"); 285 " probe to kernel_sched_switch\n");
284 goto fail_deprobe_wake_new; 286 goto fail_deprobe_wake_new;
285 } 287 }
286 288
287 ret = register_trace_sched_migrate_task(probe_wakeup_migrate_task); 289 ret = register_trace_sched_migrate_task(probe_wakeup_migrate_task, NULL);
288 if (ret) { 290 if (ret) {
289 pr_info("wakeup trace: Couldn't activate tracepoint" 291 pr_info("wakeup trace: Couldn't activate tracepoint"
290 " probe to kernel_sched_migrate_task\n"); 292 " probe to kernel_sched_migrate_task\n");
@@ -311,19 +313,19 @@ static void start_wakeup_tracer(struct trace_array *tr)
311 313
312 return; 314 return;
313fail_deprobe_wake_new: 315fail_deprobe_wake_new:
314 unregister_trace_sched_wakeup_new(probe_wakeup); 316 unregister_trace_sched_wakeup_new(probe_wakeup, NULL);
315fail_deprobe: 317fail_deprobe:
316 unregister_trace_sched_wakeup(probe_wakeup); 318 unregister_trace_sched_wakeup(probe_wakeup, NULL);
317} 319}
318 320
319static void stop_wakeup_tracer(struct trace_array *tr) 321static void stop_wakeup_tracer(struct trace_array *tr)
320{ 322{
321 tracer_enabled = 0; 323 tracer_enabled = 0;
322 unregister_ftrace_function(&trace_ops); 324 unregister_ftrace_function(&trace_ops);
323 unregister_trace_sched_switch(probe_wakeup_sched_switch); 325 unregister_trace_sched_switch(probe_wakeup_sched_switch, NULL);
324 unregister_trace_sched_wakeup_new(probe_wakeup); 326 unregister_trace_sched_wakeup_new(probe_wakeup, NULL);
325 unregister_trace_sched_wakeup(probe_wakeup); 327 unregister_trace_sched_wakeup(probe_wakeup, NULL);
326 unregister_trace_sched_migrate_task(probe_wakeup_migrate_task); 328 unregister_trace_sched_migrate_task(probe_wakeup_migrate_task, NULL);
327} 329}
328 330
329static int __wakeup_tracer_init(struct trace_array *tr) 331static int __wakeup_tracer_init(struct trace_array *tr)
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index eb769f270291..d2c859cec9ea 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -15,6 +15,54 @@ static int sys_refcount_exit;
15static DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls); 15static DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls);
16static DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls); 16static DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls);
17 17
18static int syscall_enter_register(struct ftrace_event_call *event,
19 enum trace_reg type);
20static int syscall_exit_register(struct ftrace_event_call *event,
21 enum trace_reg type);
22
23static int syscall_enter_define_fields(struct ftrace_event_call *call);
24static int syscall_exit_define_fields(struct ftrace_event_call *call);
25
26static struct list_head *
27syscall_get_enter_fields(struct ftrace_event_call *call)
28{
29 struct syscall_metadata *entry = call->data;
30
31 return &entry->enter_fields;
32}
33
34static struct list_head *
35syscall_get_exit_fields(struct ftrace_event_call *call)
36{
37 struct syscall_metadata *entry = call->data;
38
39 return &entry->exit_fields;
40}
41
42struct trace_event_functions enter_syscall_print_funcs = {
43 .trace = print_syscall_enter,
44};
45
46struct trace_event_functions exit_syscall_print_funcs = {
47 .trace = print_syscall_exit,
48};
49
50struct ftrace_event_class event_class_syscall_enter = {
51 .system = "syscalls",
52 .reg = syscall_enter_register,
53 .define_fields = syscall_enter_define_fields,
54 .get_fields = syscall_get_enter_fields,
55 .raw_init = init_syscall_trace,
56};
57
58struct ftrace_event_class event_class_syscall_exit = {
59 .system = "syscalls",
60 .reg = syscall_exit_register,
61 .define_fields = syscall_exit_define_fields,
62 .get_fields = syscall_get_exit_fields,
63 .raw_init = init_syscall_trace,
64};
65
18extern unsigned long __start_syscalls_metadata[]; 66extern unsigned long __start_syscalls_metadata[];
19extern unsigned long __stop_syscalls_metadata[]; 67extern unsigned long __stop_syscalls_metadata[];
20 68
@@ -53,7 +101,8 @@ static struct syscall_metadata *syscall_nr_to_meta(int nr)
53} 101}
54 102
55enum print_line_t 103enum print_line_t
56print_syscall_enter(struct trace_iterator *iter, int flags) 104print_syscall_enter(struct trace_iterator *iter, int flags,
105 struct trace_event *event)
57{ 106{
58 struct trace_seq *s = &iter->seq; 107 struct trace_seq *s = &iter->seq;
59 struct trace_entry *ent = iter->ent; 108 struct trace_entry *ent = iter->ent;
@@ -68,7 +117,7 @@ print_syscall_enter(struct trace_iterator *iter, int flags)
68 if (!entry) 117 if (!entry)
69 goto end; 118 goto end;
70 119
71 if (entry->enter_event->id != ent->type) { 120 if (entry->enter_event->event.type != ent->type) {
72 WARN_ON_ONCE(1); 121 WARN_ON_ONCE(1);
73 goto end; 122 goto end;
74 } 123 }
@@ -105,7 +154,8 @@ end:
105} 154}
106 155
107enum print_line_t 156enum print_line_t
108print_syscall_exit(struct trace_iterator *iter, int flags) 157print_syscall_exit(struct trace_iterator *iter, int flags,
158 struct trace_event *event)
109{ 159{
110 struct trace_seq *s = &iter->seq; 160 struct trace_seq *s = &iter->seq;
111 struct trace_entry *ent = iter->ent; 161 struct trace_entry *ent = iter->ent;
@@ -123,7 +173,7 @@ print_syscall_exit(struct trace_iterator *iter, int flags)
123 return TRACE_TYPE_HANDLED; 173 return TRACE_TYPE_HANDLED;
124 } 174 }
125 175
126 if (entry->exit_event->id != ent->type) { 176 if (entry->exit_event->event.type != ent->type) {
127 WARN_ON_ONCE(1); 177 WARN_ON_ONCE(1);
128 return TRACE_TYPE_UNHANDLED; 178 return TRACE_TYPE_UNHANDLED;
129 } 179 }
@@ -205,7 +255,7 @@ static void free_syscall_print_fmt(struct ftrace_event_call *call)
205 kfree(call->print_fmt); 255 kfree(call->print_fmt);
206} 256}
207 257
208int syscall_enter_define_fields(struct ftrace_event_call *call) 258static int syscall_enter_define_fields(struct ftrace_event_call *call)
209{ 259{
210 struct syscall_trace_enter trace; 260 struct syscall_trace_enter trace;
211 struct syscall_metadata *meta = call->data; 261 struct syscall_metadata *meta = call->data;
@@ -228,7 +278,7 @@ int syscall_enter_define_fields(struct ftrace_event_call *call)
228 return ret; 278 return ret;
229} 279}
230 280
231int syscall_exit_define_fields(struct ftrace_event_call *call) 281static int syscall_exit_define_fields(struct ftrace_event_call *call)
232{ 282{
233 struct syscall_trace_exit trace; 283 struct syscall_trace_exit trace;
234 int ret; 284 int ret;
@@ -243,7 +293,7 @@ int syscall_exit_define_fields(struct ftrace_event_call *call)
243 return ret; 293 return ret;
244} 294}
245 295
246void ftrace_syscall_enter(struct pt_regs *regs, long id) 296void ftrace_syscall_enter(void *ignore, struct pt_regs *regs, long id)
247{ 297{
248 struct syscall_trace_enter *entry; 298 struct syscall_trace_enter *entry;
249 struct syscall_metadata *sys_data; 299 struct syscall_metadata *sys_data;
@@ -265,7 +315,7 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id)
265 size = sizeof(*entry) + sizeof(unsigned long) * sys_data->nb_args; 315 size = sizeof(*entry) + sizeof(unsigned long) * sys_data->nb_args;
266 316
267 event = trace_current_buffer_lock_reserve(&buffer, 317 event = trace_current_buffer_lock_reserve(&buffer,
268 sys_data->enter_event->id, size, 0, 0); 318 sys_data->enter_event->event.type, size, 0, 0);
269 if (!event) 319 if (!event)
270 return; 320 return;
271 321
@@ -278,7 +328,7 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id)
278 trace_current_buffer_unlock_commit(buffer, event, 0, 0); 328 trace_current_buffer_unlock_commit(buffer, event, 0, 0);
279} 329}
280 330
281void ftrace_syscall_exit(struct pt_regs *regs, long ret) 331void ftrace_syscall_exit(void *ignore, struct pt_regs *regs, long ret)
282{ 332{
283 struct syscall_trace_exit *entry; 333 struct syscall_trace_exit *entry;
284 struct syscall_metadata *sys_data; 334 struct syscall_metadata *sys_data;
@@ -297,7 +347,7 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret)
297 return; 347 return;
298 348
299 event = trace_current_buffer_lock_reserve(&buffer, 349 event = trace_current_buffer_lock_reserve(&buffer,
300 sys_data->exit_event->id, sizeof(*entry), 0, 0); 350 sys_data->exit_event->event.type, sizeof(*entry), 0, 0);
301 if (!event) 351 if (!event)
302 return; 352 return;
303 353
@@ -320,7 +370,7 @@ int reg_event_syscall_enter(struct ftrace_event_call *call)
320 return -ENOSYS; 370 return -ENOSYS;
321 mutex_lock(&syscall_trace_lock); 371 mutex_lock(&syscall_trace_lock);
322 if (!sys_refcount_enter) 372 if (!sys_refcount_enter)
323 ret = register_trace_sys_enter(ftrace_syscall_enter); 373 ret = register_trace_sys_enter(ftrace_syscall_enter, NULL);
324 if (!ret) { 374 if (!ret) {
325 set_bit(num, enabled_enter_syscalls); 375 set_bit(num, enabled_enter_syscalls);
326 sys_refcount_enter++; 376 sys_refcount_enter++;
@@ -340,7 +390,7 @@ void unreg_event_syscall_enter(struct ftrace_event_call *call)
340 sys_refcount_enter--; 390 sys_refcount_enter--;
341 clear_bit(num, enabled_enter_syscalls); 391 clear_bit(num, enabled_enter_syscalls);
342 if (!sys_refcount_enter) 392 if (!sys_refcount_enter)
343 unregister_trace_sys_enter(ftrace_syscall_enter); 393 unregister_trace_sys_enter(ftrace_syscall_enter, NULL);
344 mutex_unlock(&syscall_trace_lock); 394 mutex_unlock(&syscall_trace_lock);
345} 395}
346 396
@@ -354,7 +404,7 @@ int reg_event_syscall_exit(struct ftrace_event_call *call)
354 return -ENOSYS; 404 return -ENOSYS;
355 mutex_lock(&syscall_trace_lock); 405 mutex_lock(&syscall_trace_lock);
356 if (!sys_refcount_exit) 406 if (!sys_refcount_exit)
357 ret = register_trace_sys_exit(ftrace_syscall_exit); 407 ret = register_trace_sys_exit(ftrace_syscall_exit, NULL);
358 if (!ret) { 408 if (!ret) {
359 set_bit(num, enabled_exit_syscalls); 409 set_bit(num, enabled_exit_syscalls);
360 sys_refcount_exit++; 410 sys_refcount_exit++;
@@ -374,7 +424,7 @@ void unreg_event_syscall_exit(struct ftrace_event_call *call)
374 sys_refcount_exit--; 424 sys_refcount_exit--;
375 clear_bit(num, enabled_exit_syscalls); 425 clear_bit(num, enabled_exit_syscalls);
376 if (!sys_refcount_exit) 426 if (!sys_refcount_exit)
377 unregister_trace_sys_exit(ftrace_syscall_exit); 427 unregister_trace_sys_exit(ftrace_syscall_exit, NULL);
378 mutex_unlock(&syscall_trace_lock); 428 mutex_unlock(&syscall_trace_lock);
379} 429}
380 430
@@ -434,7 +484,7 @@ static DECLARE_BITMAP(enabled_perf_exit_syscalls, NR_syscalls);
434static int sys_perf_refcount_enter; 484static int sys_perf_refcount_enter;
435static int sys_perf_refcount_exit; 485static int sys_perf_refcount_exit;
436 486
437static void perf_syscall_enter(struct pt_regs *regs, long id) 487static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id)
438{ 488{
439 struct syscall_metadata *sys_data; 489 struct syscall_metadata *sys_data;
440 struct syscall_trace_enter *rec; 490 struct syscall_trace_enter *rec;
@@ -461,7 +511,7 @@ static void perf_syscall_enter(struct pt_regs *regs, long id)
461 return; 511 return;
462 512
463 rec = (struct syscall_trace_enter *)perf_trace_buf_prepare(size, 513 rec = (struct syscall_trace_enter *)perf_trace_buf_prepare(size,
464 sys_data->enter_event->id, regs, &rctx); 514 sys_data->enter_event->event.type, regs, &rctx);
465 if (!rec) 515 if (!rec)
466 return; 516 return;
467 517
@@ -482,7 +532,7 @@ int perf_sysenter_enable(struct ftrace_event_call *call)
482 532
483 mutex_lock(&syscall_trace_lock); 533 mutex_lock(&syscall_trace_lock);
484 if (!sys_perf_refcount_enter) 534 if (!sys_perf_refcount_enter)
485 ret = register_trace_sys_enter(perf_syscall_enter); 535 ret = register_trace_sys_enter(perf_syscall_enter, NULL);
486 if (ret) { 536 if (ret) {
487 pr_info("event trace: Could not activate" 537 pr_info("event trace: Could not activate"
488 "syscall entry trace point"); 538 "syscall entry trace point");
@@ -504,11 +554,11 @@ void perf_sysenter_disable(struct ftrace_event_call *call)
504 sys_perf_refcount_enter--; 554 sys_perf_refcount_enter--;
505 clear_bit(num, enabled_perf_enter_syscalls); 555 clear_bit(num, enabled_perf_enter_syscalls);
506 if (!sys_perf_refcount_enter) 556 if (!sys_perf_refcount_enter)
507 unregister_trace_sys_enter(perf_syscall_enter); 557 unregister_trace_sys_enter(perf_syscall_enter, NULL);
508 mutex_unlock(&syscall_trace_lock); 558 mutex_unlock(&syscall_trace_lock);
509} 559}
510 560
511static void perf_syscall_exit(struct pt_regs *regs, long ret) 561static void perf_syscall_exit(void *ignore, struct pt_regs *regs, long ret)
512{ 562{
513 struct syscall_metadata *sys_data; 563 struct syscall_metadata *sys_data;
514 struct syscall_trace_exit *rec; 564 struct syscall_trace_exit *rec;
@@ -538,7 +588,7 @@ static void perf_syscall_exit(struct pt_regs *regs, long ret)
538 return; 588 return;
539 589
540 rec = (struct syscall_trace_exit *)perf_trace_buf_prepare(size, 590 rec = (struct syscall_trace_exit *)perf_trace_buf_prepare(size,
541 sys_data->exit_event->id, regs, &rctx); 591 sys_data->exit_event->event.type, regs, &rctx);
542 if (!rec) 592 if (!rec)
543 return; 593 return;
544 594
@@ -558,7 +608,7 @@ int perf_sysexit_enable(struct ftrace_event_call *call)
558 608
559 mutex_lock(&syscall_trace_lock); 609 mutex_lock(&syscall_trace_lock);
560 if (!sys_perf_refcount_exit) 610 if (!sys_perf_refcount_exit)
561 ret = register_trace_sys_exit(perf_syscall_exit); 611 ret = register_trace_sys_exit(perf_syscall_exit, NULL);
562 if (ret) { 612 if (ret) {
563 pr_info("event trace: Could not activate" 613 pr_info("event trace: Could not activate"
564 "syscall exit trace point"); 614 "syscall exit trace point");
@@ -580,9 +630,50 @@ void perf_sysexit_disable(struct ftrace_event_call *call)
580 sys_perf_refcount_exit--; 630 sys_perf_refcount_exit--;
581 clear_bit(num, enabled_perf_exit_syscalls); 631 clear_bit(num, enabled_perf_exit_syscalls);
582 if (!sys_perf_refcount_exit) 632 if (!sys_perf_refcount_exit)
583 unregister_trace_sys_exit(perf_syscall_exit); 633 unregister_trace_sys_exit(perf_syscall_exit, NULL);
584 mutex_unlock(&syscall_trace_lock); 634 mutex_unlock(&syscall_trace_lock);
585} 635}
586 636
587#endif /* CONFIG_PERF_EVENTS */ 637#endif /* CONFIG_PERF_EVENTS */
588 638
639static int syscall_enter_register(struct ftrace_event_call *event,
640 enum trace_reg type)
641{
642 switch (type) {
643 case TRACE_REG_REGISTER:
644 return reg_event_syscall_enter(event);
645 case TRACE_REG_UNREGISTER:
646 unreg_event_syscall_enter(event);
647 return 0;
648
649#ifdef CONFIG_PERF_EVENTS
650 case TRACE_REG_PERF_REGISTER:
651 return perf_sysenter_enable(event);
652 case TRACE_REG_PERF_UNREGISTER:
653 perf_sysenter_disable(event);
654 return 0;
655#endif
656 }
657 return 0;
658}
659
660static int syscall_exit_register(struct ftrace_event_call *event,
661 enum trace_reg type)
662{
663 switch (type) {
664 case TRACE_REG_REGISTER:
665 return reg_event_syscall_exit(event);
666 case TRACE_REG_UNREGISTER:
667 unreg_event_syscall_exit(event);
668 return 0;
669
670#ifdef CONFIG_PERF_EVENTS
671 case TRACE_REG_PERF_REGISTER:
672 return perf_sysexit_enable(event);
673 case TRACE_REG_PERF_UNREGISTER:
674 perf_sysexit_disable(event);
675 return 0;
676#endif
677 }
678 return 0;
679}
diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c
index cc2d2faa7d9e..a7cc3793baf6 100644
--- a/kernel/trace/trace_workqueue.c
+++ b/kernel/trace/trace_workqueue.c
@@ -49,7 +49,8 @@ static void cpu_workqueue_stat_free(struct kref *kref)
49 49
50/* Insertion of a work */ 50/* Insertion of a work */
51static void 51static void
52probe_workqueue_insertion(struct task_struct *wq_thread, 52probe_workqueue_insertion(void *ignore,
53 struct task_struct *wq_thread,
53 struct work_struct *work) 54 struct work_struct *work)
54{ 55{
55 int cpu = cpumask_first(&wq_thread->cpus_allowed); 56 int cpu = cpumask_first(&wq_thread->cpus_allowed);
@@ -70,7 +71,8 @@ found:
70 71
71/* Execution of a work */ 72/* Execution of a work */
72static void 73static void
73probe_workqueue_execution(struct task_struct *wq_thread, 74probe_workqueue_execution(void *ignore,
75 struct task_struct *wq_thread,
74 struct work_struct *work) 76 struct work_struct *work)
75{ 77{
76 int cpu = cpumask_first(&wq_thread->cpus_allowed); 78 int cpu = cpumask_first(&wq_thread->cpus_allowed);
@@ -90,7 +92,8 @@ found:
90} 92}
91 93
92/* Creation of a cpu workqueue thread */ 94/* Creation of a cpu workqueue thread */
93static void probe_workqueue_creation(struct task_struct *wq_thread, int cpu) 95static void probe_workqueue_creation(void *ignore,
96 struct task_struct *wq_thread, int cpu)
94{ 97{
95 struct cpu_workqueue_stats *cws; 98 struct cpu_workqueue_stats *cws;
96 unsigned long flags; 99 unsigned long flags;
@@ -114,7 +117,8 @@ static void probe_workqueue_creation(struct task_struct *wq_thread, int cpu)
114} 117}
115 118
116/* Destruction of a cpu workqueue thread */ 119/* Destruction of a cpu workqueue thread */
117static void probe_workqueue_destruction(struct task_struct *wq_thread) 120static void
121probe_workqueue_destruction(void *ignore, struct task_struct *wq_thread)
118{ 122{
119 /* Workqueue only execute on one cpu */ 123 /* Workqueue only execute on one cpu */
120 int cpu = cpumask_first(&wq_thread->cpus_allowed); 124 int cpu = cpumask_first(&wq_thread->cpus_allowed);
@@ -259,19 +263,19 @@ int __init trace_workqueue_early_init(void)
259{ 263{
260 int ret, cpu; 264 int ret, cpu;
261 265
262 ret = register_trace_workqueue_insertion(probe_workqueue_insertion); 266 ret = register_trace_workqueue_insertion(probe_workqueue_insertion, NULL);
263 if (ret) 267 if (ret)
264 goto out; 268 goto out;
265 269
266 ret = register_trace_workqueue_execution(probe_workqueue_execution); 270 ret = register_trace_workqueue_execution(probe_workqueue_execution, NULL);
267 if (ret) 271 if (ret)
268 goto no_insertion; 272 goto no_insertion;
269 273
270 ret = register_trace_workqueue_creation(probe_workqueue_creation); 274 ret = register_trace_workqueue_creation(probe_workqueue_creation, NULL);
271 if (ret) 275 if (ret)
272 goto no_execution; 276 goto no_execution;
273 277
274 ret = register_trace_workqueue_destruction(probe_workqueue_destruction); 278 ret = register_trace_workqueue_destruction(probe_workqueue_destruction, NULL);
275 if (ret) 279 if (ret)
276 goto no_creation; 280 goto no_creation;
277 281
@@ -283,11 +287,11 @@ int __init trace_workqueue_early_init(void)
283 return 0; 287 return 0;
284 288
285no_creation: 289no_creation:
286 unregister_trace_workqueue_creation(probe_workqueue_creation); 290 unregister_trace_workqueue_creation(probe_workqueue_creation, NULL);
287no_execution: 291no_execution:
288 unregister_trace_workqueue_execution(probe_workqueue_execution); 292 unregister_trace_workqueue_execution(probe_workqueue_execution, NULL);
289no_insertion: 293no_insertion:
290 unregister_trace_workqueue_insertion(probe_workqueue_insertion); 294 unregister_trace_workqueue_insertion(probe_workqueue_insertion, NULL);
291out: 295out:
292 pr_warning("trace_workqueue: unable to trace workqueues\n"); 296 pr_warning("trace_workqueue: unable to trace workqueues\n");
293 297
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index cc89be5bc0f8..c77f3eceea25 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -54,7 +54,7 @@ static struct hlist_head tracepoint_table[TRACEPOINT_TABLE_SIZE];
54 */ 54 */
55struct tracepoint_entry { 55struct tracepoint_entry {
56 struct hlist_node hlist; 56 struct hlist_node hlist;
57 void **funcs; 57 struct tracepoint_func *funcs;
58 int refcount; /* Number of times armed. 0 if disarmed. */ 58 int refcount; /* Number of times armed. 0 if disarmed. */
59 char name[0]; 59 char name[0];
60}; 60};
@@ -64,12 +64,12 @@ struct tp_probes {
64 struct rcu_head rcu; 64 struct rcu_head rcu;
65 struct list_head list; 65 struct list_head list;
66 } u; 66 } u;
67 void *probes[0]; 67 struct tracepoint_func probes[0];
68}; 68};
69 69
70static inline void *allocate_probes(int count) 70static inline void *allocate_probes(int count)
71{ 71{
72 struct tp_probes *p = kmalloc(count * sizeof(void *) 72 struct tp_probes *p = kmalloc(count * sizeof(struct tracepoint_func)
73 + sizeof(struct tp_probes), GFP_KERNEL); 73 + sizeof(struct tp_probes), GFP_KERNEL);
74 return p == NULL ? NULL : p->probes; 74 return p == NULL ? NULL : p->probes;
75} 75}
@@ -79,7 +79,7 @@ static void rcu_free_old_probes(struct rcu_head *head)
79 kfree(container_of(head, struct tp_probes, u.rcu)); 79 kfree(container_of(head, struct tp_probes, u.rcu));
80} 80}
81 81
82static inline void release_probes(void *old) 82static inline void release_probes(struct tracepoint_func *old)
83{ 83{
84 if (old) { 84 if (old) {
85 struct tp_probes *tp_probes = container_of(old, 85 struct tp_probes *tp_probes = container_of(old,
@@ -95,15 +95,16 @@ static void debug_print_probes(struct tracepoint_entry *entry)
95 if (!tracepoint_debug || !entry->funcs) 95 if (!tracepoint_debug || !entry->funcs)
96 return; 96 return;
97 97
98 for (i = 0; entry->funcs[i]; i++) 98 for (i = 0; entry->funcs[i].func; i++)
99 printk(KERN_DEBUG "Probe %d : %p\n", i, entry->funcs[i]); 99 printk(KERN_DEBUG "Probe %d : %p\n", i, entry->funcs[i].func);
100} 100}
101 101
102static void * 102static struct tracepoint_func *
103tracepoint_entry_add_probe(struct tracepoint_entry *entry, void *probe) 103tracepoint_entry_add_probe(struct tracepoint_entry *entry,
104 void *probe, void *data)
104{ 105{
105 int nr_probes = 0; 106 int nr_probes = 0;
106 void **old, **new; 107 struct tracepoint_func *old, *new;
107 108
108 WARN_ON(!probe); 109 WARN_ON(!probe);
109 110
@@ -111,8 +112,9 @@ tracepoint_entry_add_probe(struct tracepoint_entry *entry, void *probe)
111 old = entry->funcs; 112 old = entry->funcs;
112 if (old) { 113 if (old) {
113 /* (N -> N+1), (N != 0, 1) probes */ 114 /* (N -> N+1), (N != 0, 1) probes */
114 for (nr_probes = 0; old[nr_probes]; nr_probes++) 115 for (nr_probes = 0; old[nr_probes].func; nr_probes++)
115 if (old[nr_probes] == probe) 116 if (old[nr_probes].func == probe &&
117 old[nr_probes].data == data)
116 return ERR_PTR(-EEXIST); 118 return ERR_PTR(-EEXIST);
117 } 119 }
118 /* + 2 : one for new probe, one for NULL func */ 120 /* + 2 : one for new probe, one for NULL func */
@@ -120,9 +122,10 @@ tracepoint_entry_add_probe(struct tracepoint_entry *entry, void *probe)
120 if (new == NULL) 122 if (new == NULL)
121 return ERR_PTR(-ENOMEM); 123 return ERR_PTR(-ENOMEM);
122 if (old) 124 if (old)
123 memcpy(new, old, nr_probes * sizeof(void *)); 125 memcpy(new, old, nr_probes * sizeof(struct tracepoint_func));
124 new[nr_probes] = probe; 126 new[nr_probes].func = probe;
125 new[nr_probes + 1] = NULL; 127 new[nr_probes].data = data;
128 new[nr_probes + 1].func = NULL;
126 entry->refcount = nr_probes + 1; 129 entry->refcount = nr_probes + 1;
127 entry->funcs = new; 130 entry->funcs = new;
128 debug_print_probes(entry); 131 debug_print_probes(entry);
@@ -130,10 +133,11 @@ tracepoint_entry_add_probe(struct tracepoint_entry *entry, void *probe)
130} 133}
131 134
132static void * 135static void *
133tracepoint_entry_remove_probe(struct tracepoint_entry *entry, void *probe) 136tracepoint_entry_remove_probe(struct tracepoint_entry *entry,
137 void *probe, void *data)
134{ 138{
135 int nr_probes = 0, nr_del = 0, i; 139 int nr_probes = 0, nr_del = 0, i;
136 void **old, **new; 140 struct tracepoint_func *old, *new;
137 141
138 old = entry->funcs; 142 old = entry->funcs;
139 143
@@ -142,8 +146,10 @@ tracepoint_entry_remove_probe(struct tracepoint_entry *entry, void *probe)
142 146
143 debug_print_probes(entry); 147 debug_print_probes(entry);
144 /* (N -> M), (N > 1, M >= 0) probes */ 148 /* (N -> M), (N > 1, M >= 0) probes */
145 for (nr_probes = 0; old[nr_probes]; nr_probes++) { 149 for (nr_probes = 0; old[nr_probes].func; nr_probes++) {
146 if ((!probe || old[nr_probes] == probe)) 150 if (!probe ||
151 (old[nr_probes].func == probe &&
152 old[nr_probes].data == data))
147 nr_del++; 153 nr_del++;
148 } 154 }
149 155
@@ -160,10 +166,11 @@ tracepoint_entry_remove_probe(struct tracepoint_entry *entry, void *probe)
160 new = allocate_probes(nr_probes - nr_del + 1); 166 new = allocate_probes(nr_probes - nr_del + 1);
161 if (new == NULL) 167 if (new == NULL)
162 return ERR_PTR(-ENOMEM); 168 return ERR_PTR(-ENOMEM);
163 for (i = 0; old[i]; i++) 169 for (i = 0; old[i].func; i++)
164 if ((probe && old[i] != probe)) 170 if (probe &&
171 (old[i].func != probe || old[i].data != data))
165 new[j++] = old[i]; 172 new[j++] = old[i];
166 new[nr_probes - nr_del] = NULL; 173 new[nr_probes - nr_del].func = NULL;
167 entry->refcount = nr_probes - nr_del; 174 entry->refcount = nr_probes - nr_del;
168 entry->funcs = new; 175 entry->funcs = new;
169 } 176 }
@@ -315,18 +322,19 @@ static void tracepoint_update_probes(void)
315 module_update_tracepoints(); 322 module_update_tracepoints();
316} 323}
317 324
318static void *tracepoint_add_probe(const char *name, void *probe) 325static struct tracepoint_func *
326tracepoint_add_probe(const char *name, void *probe, void *data)
319{ 327{
320 struct tracepoint_entry *entry; 328 struct tracepoint_entry *entry;
321 void *old; 329 struct tracepoint_func *old;
322 330
323 entry = get_tracepoint(name); 331 entry = get_tracepoint(name);
324 if (!entry) { 332 if (!entry) {
325 entry = add_tracepoint(name); 333 entry = add_tracepoint(name);
326 if (IS_ERR(entry)) 334 if (IS_ERR(entry))
327 return entry; 335 return (struct tracepoint_func *)entry;
328 } 336 }
329 old = tracepoint_entry_add_probe(entry, probe); 337 old = tracepoint_entry_add_probe(entry, probe, data);
330 if (IS_ERR(old) && !entry->refcount) 338 if (IS_ERR(old) && !entry->refcount)
331 remove_tracepoint(entry); 339 remove_tracepoint(entry);
332 return old; 340 return old;
@@ -340,12 +348,12 @@ static void *tracepoint_add_probe(const char *name, void *probe)
340 * Returns 0 if ok, error value on error. 348 * Returns 0 if ok, error value on error.
341 * The probe address must at least be aligned on the architecture pointer size. 349 * The probe address must at least be aligned on the architecture pointer size.
342 */ 350 */
343int tracepoint_probe_register(const char *name, void *probe) 351int tracepoint_probe_register(const char *name, void *probe, void *data)
344{ 352{
345 void *old; 353 struct tracepoint_func *old;
346 354
347 mutex_lock(&tracepoints_mutex); 355 mutex_lock(&tracepoints_mutex);
348 old = tracepoint_add_probe(name, probe); 356 old = tracepoint_add_probe(name, probe, data);
349 mutex_unlock(&tracepoints_mutex); 357 mutex_unlock(&tracepoints_mutex);
350 if (IS_ERR(old)) 358 if (IS_ERR(old))
351 return PTR_ERR(old); 359 return PTR_ERR(old);
@@ -356,15 +364,16 @@ int tracepoint_probe_register(const char *name, void *probe)
356} 364}
357EXPORT_SYMBOL_GPL(tracepoint_probe_register); 365EXPORT_SYMBOL_GPL(tracepoint_probe_register);
358 366
359static void *tracepoint_remove_probe(const char *name, void *probe) 367static struct tracepoint_func *
368tracepoint_remove_probe(const char *name, void *probe, void *data)
360{ 369{
361 struct tracepoint_entry *entry; 370 struct tracepoint_entry *entry;
362 void *old; 371 struct tracepoint_func *old;
363 372
364 entry = get_tracepoint(name); 373 entry = get_tracepoint(name);
365 if (!entry) 374 if (!entry)
366 return ERR_PTR(-ENOENT); 375 return ERR_PTR(-ENOENT);
367 old = tracepoint_entry_remove_probe(entry, probe); 376 old = tracepoint_entry_remove_probe(entry, probe, data);
368 if (IS_ERR(old)) 377 if (IS_ERR(old))
369 return old; 378 return old;
370 if (!entry->refcount) 379 if (!entry->refcount)
@@ -382,12 +391,12 @@ static void *tracepoint_remove_probe(const char *name, void *probe)
382 * itself uses stop_machine(), which insures that every preempt disabled section 391 * itself uses stop_machine(), which insures that every preempt disabled section
383 * have finished. 392 * have finished.
384 */ 393 */
385int tracepoint_probe_unregister(const char *name, void *probe) 394int tracepoint_probe_unregister(const char *name, void *probe, void *data)
386{ 395{
387 void *old; 396 struct tracepoint_func *old;
388 397
389 mutex_lock(&tracepoints_mutex); 398 mutex_lock(&tracepoints_mutex);
390 old = tracepoint_remove_probe(name, probe); 399 old = tracepoint_remove_probe(name, probe, data);
391 mutex_unlock(&tracepoints_mutex); 400 mutex_unlock(&tracepoints_mutex);
392 if (IS_ERR(old)) 401 if (IS_ERR(old))
393 return PTR_ERR(old); 402 return PTR_ERR(old);
@@ -418,12 +427,13 @@ static void tracepoint_add_old_probes(void *old)
418 * 427 *
419 * caller must call tracepoint_probe_update_all() 428 * caller must call tracepoint_probe_update_all()
420 */ 429 */
421int tracepoint_probe_register_noupdate(const char *name, void *probe) 430int tracepoint_probe_register_noupdate(const char *name, void *probe,
431 void *data)
422{ 432{
423 void *old; 433 struct tracepoint_func *old;
424 434
425 mutex_lock(&tracepoints_mutex); 435 mutex_lock(&tracepoints_mutex);
426 old = tracepoint_add_probe(name, probe); 436 old = tracepoint_add_probe(name, probe, data);
427 if (IS_ERR(old)) { 437 if (IS_ERR(old)) {
428 mutex_unlock(&tracepoints_mutex); 438 mutex_unlock(&tracepoints_mutex);
429 return PTR_ERR(old); 439 return PTR_ERR(old);
@@ -441,12 +451,13 @@ EXPORT_SYMBOL_GPL(tracepoint_probe_register_noupdate);
441 * 451 *
442 * caller must call tracepoint_probe_update_all() 452 * caller must call tracepoint_probe_update_all()
443 */ 453 */
444int tracepoint_probe_unregister_noupdate(const char *name, void *probe) 454int tracepoint_probe_unregister_noupdate(const char *name, void *probe,
455 void *data)
445{ 456{
446 void *old; 457 struct tracepoint_func *old;
447 458
448 mutex_lock(&tracepoints_mutex); 459 mutex_lock(&tracepoints_mutex);
449 old = tracepoint_remove_probe(name, probe); 460 old = tracepoint_remove_probe(name, probe, data);
450 if (IS_ERR(old)) { 461 if (IS_ERR(old)) {
451 mutex_unlock(&tracepoints_mutex); 462 mutex_unlock(&tracepoints_mutex);
452 return PTR_ERR(old); 463 return PTR_ERR(old);
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index cf208d8042b1..ad41529fb60f 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -172,12 +172,12 @@ out:
172 return; 172 return;
173} 173}
174 174
175static void trace_kfree_skb_hit(struct sk_buff *skb, void *location) 175static void trace_kfree_skb_hit(void *ignore, struct sk_buff *skb, void *location)
176{ 176{
177 trace_drop_common(skb, location); 177 trace_drop_common(skb, location);
178} 178}
179 179
180static void trace_napi_poll_hit(struct napi_struct *napi) 180static void trace_napi_poll_hit(void *ignore, struct napi_struct *napi)
181{ 181{
182 struct dm_hw_stat_delta *new_stat; 182 struct dm_hw_stat_delta *new_stat;
183 183
@@ -225,12 +225,12 @@ static int set_all_monitor_traces(int state)
225 225
226 switch (state) { 226 switch (state) {
227 case TRACE_ON: 227 case TRACE_ON:
228 rc |= register_trace_kfree_skb(trace_kfree_skb_hit); 228 rc |= register_trace_kfree_skb(trace_kfree_skb_hit, NULL);
229 rc |= register_trace_napi_poll(trace_napi_poll_hit); 229 rc |= register_trace_napi_poll(trace_napi_poll_hit, NULL);
230 break; 230 break;
231 case TRACE_OFF: 231 case TRACE_OFF:
232 rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit); 232 rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit, NULL);
233 rc |= unregister_trace_napi_poll(trace_napi_poll_hit); 233 rc |= unregister_trace_napi_poll(trace_napi_poll_hit, NULL);
234 234
235 tracepoint_synchronize_unregister(); 235 tracepoint_synchronize_unregister();
236 236
diff --git a/samples/tracepoints/tp-samples-trace.h b/samples/tracepoints/tp-samples-trace.h
index dffdc49878af..4d46be965961 100644
--- a/samples/tracepoints/tp-samples-trace.h
+++ b/samples/tracepoints/tp-samples-trace.h
@@ -7,7 +7,5 @@
7DECLARE_TRACE(subsys_event, 7DECLARE_TRACE(subsys_event,
8 TP_PROTO(struct inode *inode, struct file *file), 8 TP_PROTO(struct inode *inode, struct file *file),
9 TP_ARGS(inode, file)); 9 TP_ARGS(inode, file));
10DECLARE_TRACE(subsys_eventb, 10DECLARE_TRACE_NOARGS(subsys_eventb);
11 TP_PROTO(void),
12 TP_ARGS());
13#endif 11#endif
diff --git a/samples/tracepoints/tracepoint-probe-sample.c b/samples/tracepoints/tracepoint-probe-sample.c
index 9e60eb6ca2d8..744c0b9652a7 100644
--- a/samples/tracepoints/tracepoint-probe-sample.c
+++ b/samples/tracepoints/tracepoint-probe-sample.c
@@ -13,7 +13,8 @@
13 * Here the caller only guarantees locking for struct file and struct inode. 13 * Here the caller only guarantees locking for struct file and struct inode.
14 * Locking must therefore be done in the probe to use the dentry. 14 * Locking must therefore be done in the probe to use the dentry.
15 */ 15 */
16static void probe_subsys_event(struct inode *inode, struct file *file) 16static void probe_subsys_event(void *ignore,
17 struct inode *inode, struct file *file)
17{ 18{
18 path_get(&file->f_path); 19 path_get(&file->f_path);
19 dget(file->f_path.dentry); 20 dget(file->f_path.dentry);
@@ -23,7 +24,7 @@ static void probe_subsys_event(struct inode *inode, struct file *file)
23 path_put(&file->f_path); 24 path_put(&file->f_path);
24} 25}
25 26
26static void probe_subsys_eventb(void) 27static void probe_subsys_eventb(void *ignore)
27{ 28{
28 printk(KERN_INFO "Event B is encountered\n"); 29 printk(KERN_INFO "Event B is encountered\n");
29} 30}
@@ -32,9 +33,9 @@ static int __init tp_sample_trace_init(void)
32{ 33{
33 int ret; 34 int ret;
34 35
35 ret = register_trace_subsys_event(probe_subsys_event); 36 ret = register_trace_subsys_event(probe_subsys_event, NULL);
36 WARN_ON(ret); 37 WARN_ON(ret);
37 ret = register_trace_subsys_eventb(probe_subsys_eventb); 38 ret = register_trace_subsys_eventb(probe_subsys_eventb, NULL);
38 WARN_ON(ret); 39 WARN_ON(ret);
39 40
40 return 0; 41 return 0;
@@ -44,8 +45,8 @@ module_init(tp_sample_trace_init);
44 45
45static void __exit tp_sample_trace_exit(void) 46static void __exit tp_sample_trace_exit(void)
46{ 47{
47 unregister_trace_subsys_eventb(probe_subsys_eventb); 48 unregister_trace_subsys_eventb(probe_subsys_eventb, NULL);
48 unregister_trace_subsys_event(probe_subsys_event); 49 unregister_trace_subsys_event(probe_subsys_event, NULL);
49 tracepoint_synchronize_unregister(); 50 tracepoint_synchronize_unregister();
50} 51}
51 52
diff --git a/samples/tracepoints/tracepoint-probe-sample2.c b/samples/tracepoints/tracepoint-probe-sample2.c
index be2a960573f1..9fcf990e5d4b 100644
--- a/samples/tracepoints/tracepoint-probe-sample2.c
+++ b/samples/tracepoints/tracepoint-probe-sample2.c
@@ -12,7 +12,8 @@
12 * Here the caller only guarantees locking for struct file and struct inode. 12 * Here the caller only guarantees locking for struct file and struct inode.
13 * Locking must therefore be done in the probe to use the dentry. 13 * Locking must therefore be done in the probe to use the dentry.
14 */ 14 */
15static void probe_subsys_event(struct inode *inode, struct file *file) 15static void probe_subsys_event(void *ignore,
16 struct inode *inode, struct file *file)
16{ 17{
17 printk(KERN_INFO "Event is encountered with inode number %lu\n", 18 printk(KERN_INFO "Event is encountered with inode number %lu\n",
18 inode->i_ino); 19 inode->i_ino);
@@ -22,7 +23,7 @@ static int __init tp_sample_trace_init(void)
22{ 23{
23 int ret; 24 int ret;
24 25
25 ret = register_trace_subsys_event(probe_subsys_event); 26 ret = register_trace_subsys_event(probe_subsys_event, NULL);
26 WARN_ON(ret); 27 WARN_ON(ret);
27 28
28 return 0; 29 return 0;
@@ -32,7 +33,7 @@ module_init(tp_sample_trace_init);
32 33
33static void __exit tp_sample_trace_exit(void) 34static void __exit tp_sample_trace_exit(void)
34{ 35{
35 unregister_trace_subsys_event(probe_subsys_event); 36 unregister_trace_subsys_event(probe_subsys_event, NULL);
36 tracepoint_synchronize_unregister(); 37 tracepoint_synchronize_unregister();
37} 38}
38 39
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-23 02:00:51 -0500