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-rw-r--r--include/linux/ftrace_event.h16
-rw-r--r--include/linux/syscalls.h24
-rw-r--r--include/trace/ftrace.h38
-rw-r--r--include/trace/syscall.h8
-rw-r--r--kernel/perf_event.c4
-rw-r--r--kernel/trace/Makefile2
-rw-r--r--kernel/trace/trace_event_perf.c (renamed from kernel/trace/trace_event_profile.c)44
-rw-r--r--kernel/trace/trace_events.c2
-rw-r--r--kernel/trace/trace_kprobe.c28
-rw-r--r--kernel/trace/trace_syscalls.c72
10 files changed, 119 insertions, 119 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index ac424f18ce63..c0f4b364c711 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -131,12 +131,12 @@ struct ftrace_event_call {
131 void *mod; 131 void *mod;
132 void *data; 132 void *data;
133 133
134 int profile_count; 134 int perf_refcount;
135 int (*profile_enable)(struct ftrace_event_call *); 135 int (*perf_event_enable)(struct ftrace_event_call *);
136 void (*profile_disable)(struct ftrace_event_call *); 136 void (*perf_event_disable)(struct ftrace_event_call *);
137}; 137};
138 138
139#define FTRACE_MAX_PROFILE_SIZE 2048 139#define PERF_MAX_TRACE_SIZE 2048
140 140
141#define MAX_FILTER_PRED 32 141#define MAX_FILTER_PRED 32
142#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */ 142#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
@@ -190,17 +190,17 @@ struct perf_event;
190 190
191DECLARE_PER_CPU(struct pt_regs, perf_trace_regs); 191DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
192 192
193extern int ftrace_profile_enable(int event_id); 193extern int perf_trace_enable(int event_id);
194extern void ftrace_profile_disable(int event_id); 194extern void perf_trace_disable(int event_id);
195extern int ftrace_profile_set_filter(struct perf_event *event, int event_id, 195extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
196 char *filter_str); 196 char *filter_str);
197extern void ftrace_profile_free_filter(struct perf_event *event); 197extern void ftrace_profile_free_filter(struct perf_event *event);
198extern void * 198extern void *
199ftrace_perf_buf_prepare(int size, unsigned short type, int *rctxp, 199perf_trace_buf_prepare(int size, unsigned short type, int *rctxp,
200 unsigned long *irq_flags); 200 unsigned long *irq_flags);
201 201
202static inline void 202static inline void
203ftrace_perf_buf_submit(void *raw_data, int size, int rctx, u64 addr, 203perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
204 u64 count, unsigned long irq_flags, struct pt_regs *regs) 204 u64 count, unsigned long irq_flags, struct pt_regs *regs)
205{ 205{
206 struct trace_entry *entry = raw_data; 206 struct trace_entry *entry = raw_data;
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 8126f239edf0..51435bcc3460 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -101,18 +101,18 @@ struct perf_event_attr;
101 101
102#ifdef CONFIG_PERF_EVENTS 102#ifdef CONFIG_PERF_EVENTS
103 103
104#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \ 104#define TRACE_SYS_ENTER_PERF_INIT(sname) \
105 .profile_enable = prof_sysenter_enable, \ 105 .perf_event_enable = perf_sysenter_enable, \
106 .profile_disable = prof_sysenter_disable, 106 .perf_event_disable = perf_sysenter_disable,
107 107
108#define TRACE_SYS_EXIT_PROFILE_INIT(sname) \ 108#define TRACE_SYS_EXIT_PERF_INIT(sname) \
109 .profile_enable = prof_sysexit_enable, \ 109 .perf_event_enable = perf_sysexit_enable, \
110 .profile_disable = prof_sysexit_disable, 110 .perf_event_disable = perf_sysexit_disable,
111#else 111#else
112#define TRACE_SYS_ENTER_PROFILE(sname) 112#define TRACE_SYS_ENTER_PERF(sname)
113#define TRACE_SYS_ENTER_PROFILE_INIT(sname) 113#define TRACE_SYS_ENTER_PERF_INIT(sname)
114#define TRACE_SYS_EXIT_PROFILE(sname) 114#define TRACE_SYS_EXIT_PERF(sname)
115#define TRACE_SYS_EXIT_PROFILE_INIT(sname) 115#define TRACE_SYS_EXIT_PERF_INIT(sname)
116#endif /* CONFIG_PERF_EVENTS */ 116#endif /* CONFIG_PERF_EVENTS */
117 117
118#ifdef CONFIG_FTRACE_SYSCALLS 118#ifdef CONFIG_FTRACE_SYSCALLS
@@ -149,7 +149,7 @@ struct perf_event_attr;
149 .regfunc = reg_event_syscall_enter, \ 149 .regfunc = reg_event_syscall_enter, \
150 .unregfunc = unreg_event_syscall_enter, \ 150 .unregfunc = unreg_event_syscall_enter, \
151 .data = (void *)&__syscall_meta_##sname,\ 151 .data = (void *)&__syscall_meta_##sname,\
152 TRACE_SYS_ENTER_PROFILE_INIT(sname) \ 152 TRACE_SYS_ENTER_PERF_INIT(sname) \
153 } 153 }
154 154
155#define SYSCALL_TRACE_EXIT_EVENT(sname) \ 155#define SYSCALL_TRACE_EXIT_EVENT(sname) \
@@ -171,7 +171,7 @@ struct perf_event_attr;
171 .regfunc = reg_event_syscall_exit, \ 171 .regfunc = reg_event_syscall_exit, \
172 .unregfunc = unreg_event_syscall_exit, \ 172 .unregfunc = unreg_event_syscall_exit, \
173 .data = (void *)&__syscall_meta_##sname,\ 173 .data = (void *)&__syscall_meta_##sname,\
174 TRACE_SYS_EXIT_PROFILE_INIT(sname) \ 174 TRACE_SYS_EXIT_PERF_INIT(sname) \
175 } 175 }
176 176
177#define SYSCALL_METADATA(sname, nb) \ 177#define SYSCALL_METADATA(sname, nb) \
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index f31bb8b9777c..25ab56f75d65 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -401,18 +401,18 @@ static inline notrace int ftrace_get_offsets_##call( \
401#undef DEFINE_EVENT 401#undef DEFINE_EVENT
402#define DEFINE_EVENT(template, name, proto, args) \ 402#define DEFINE_EVENT(template, name, proto, args) \
403 \ 403 \
404static void ftrace_profile_##name(proto); \ 404static void perf_trace_##name(proto); \
405 \ 405 \
406static notrace int \ 406static notrace int \
407ftrace_profile_enable_##name(struct ftrace_event_call *unused) \ 407perf_trace_enable_##name(struct ftrace_event_call *unused) \
408{ \ 408{ \
409 return register_trace_##name(ftrace_profile_##name); \ 409 return register_trace_##name(perf_trace_##name); \
410} \ 410} \
411 \ 411 \
412static notrace void \ 412static notrace void \
413ftrace_profile_disable_##name(struct ftrace_event_call *unused) \ 413perf_trace_disable_##name(struct ftrace_event_call *unused) \
414{ \ 414{ \
415 unregister_trace_##name(ftrace_profile_##name); \ 415 unregister_trace_##name(perf_trace_##name); \
416} 416}
417 417
418#undef DEFINE_EVENT_PRINT 418#undef DEFINE_EVENT_PRINT
@@ -507,12 +507,12 @@ ftrace_profile_disable_##name(struct ftrace_event_call *unused) \
507 507
508#ifdef CONFIG_PERF_EVENTS 508#ifdef CONFIG_PERF_EVENTS
509 509
510#define _TRACE_PROFILE_INIT(call) \ 510#define _TRACE_PERF_INIT(call) \
511 .profile_enable = ftrace_profile_enable_##call, \ 511 .perf_event_enable = perf_trace_enable_##call, \
512 .profile_disable = ftrace_profile_disable_##call, 512 .perf_event_disable = perf_trace_disable_##call,
513 513
514#else 514#else
515#define _TRACE_PROFILE_INIT(call) 515#define _TRACE_PERF_INIT(call)
516#endif /* CONFIG_PERF_EVENTS */ 516#endif /* CONFIG_PERF_EVENTS */
517 517
518#undef __entry 518#undef __entry
@@ -638,7 +638,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
638 .unregfunc = ftrace_raw_unreg_event_##call, \ 638 .unregfunc = ftrace_raw_unreg_event_##call, \
639 .print_fmt = print_fmt_##template, \ 639 .print_fmt = print_fmt_##template, \
640 .define_fields = ftrace_define_fields_##template, \ 640 .define_fields = ftrace_define_fields_##template, \
641 _TRACE_PROFILE_INIT(call) \ 641 _TRACE_PERF_INIT(call) \
642} 642}
643 643
644#undef DEFINE_EVENT_PRINT 644#undef DEFINE_EVENT_PRINT
@@ -657,18 +657,18 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
657 .unregfunc = ftrace_raw_unreg_event_##call, \ 657 .unregfunc = ftrace_raw_unreg_event_##call, \
658 .print_fmt = print_fmt_##call, \ 658 .print_fmt = print_fmt_##call, \
659 .define_fields = ftrace_define_fields_##template, \ 659 .define_fields = ftrace_define_fields_##template, \
660 _TRACE_PROFILE_INIT(call) \ 660 _TRACE_PERF_INIT(call) \
661} 661}
662 662
663#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 663#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
664 664
665/* 665/*
666 * Define the insertion callback to profile events 666 * Define the insertion callback to perf events
667 * 667 *
668 * The job is very similar to ftrace_raw_event_<call> except that we don't 668 * The job is very similar to ftrace_raw_event_<call> except that we don't
669 * insert in the ring buffer but in a perf counter. 669 * insert in the ring buffer but in a perf counter.
670 * 670 *
671 * static void ftrace_profile_<call>(proto) 671 * static void ftrace_perf_<call>(proto)
672 * { 672 * {
673 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets; 673 * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
674 * struct ftrace_event_call *event_call = &event_<call>; 674 * struct ftrace_event_call *event_call = &event_<call>;
@@ -757,7 +757,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
757#undef DECLARE_EVENT_CLASS 757#undef DECLARE_EVENT_CLASS
758#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ 758#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
759static notrace void \ 759static notrace void \
760ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \ 760perf_trace_templ_##call(struct ftrace_event_call *event_call, \
761 proto) \ 761 proto) \
762{ \ 762{ \
763 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ 763 struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
@@ -774,10 +774,10 @@ ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \
774 sizeof(u64)); \ 774 sizeof(u64)); \
775 __entry_size -= sizeof(u32); \ 775 __entry_size -= sizeof(u32); \
776 \ 776 \
777 if (WARN_ONCE(__entry_size > FTRACE_MAX_PROFILE_SIZE, \ 777 if (WARN_ONCE(__entry_size > PERF_MAX_TRACE_SIZE, \
778 "profile buffer not large enough")) \ 778 "profile buffer not large enough")) \
779 return; \ 779 return; \
780 entry = (struct ftrace_raw_##call *)ftrace_perf_buf_prepare( \ 780 entry = (struct ftrace_raw_##call *)perf_trace_buf_prepare( \
781 __entry_size, event_call->id, &rctx, &irq_flags); \ 781 __entry_size, event_call->id, &rctx, &irq_flags); \
782 if (!entry) \ 782 if (!entry) \
783 return; \ 783 return; \
@@ -788,17 +788,17 @@ ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \
788 __regs = &__get_cpu_var(perf_trace_regs); \ 788 __regs = &__get_cpu_var(perf_trace_regs); \
789 perf_fetch_caller_regs(__regs, 2); \ 789 perf_fetch_caller_regs(__regs, 2); \
790 \ 790 \
791 ftrace_perf_buf_submit(entry, __entry_size, rctx, __addr, \ 791 perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \
792 __count, irq_flags, __regs); \ 792 __count, irq_flags, __regs); \
793} 793}
794 794
795#undef DEFINE_EVENT 795#undef DEFINE_EVENT
796#define DEFINE_EVENT(template, call, proto, args) \ 796#define DEFINE_EVENT(template, call, proto, args) \
797static notrace void ftrace_profile_##call(proto) \ 797static notrace void perf_trace_##call(proto) \
798{ \ 798{ \
799 struct ftrace_event_call *event_call = &event_##call; \ 799 struct ftrace_event_call *event_call = &event_##call; \
800 \ 800 \
801 ftrace_profile_templ_##template(event_call, args); \ 801 perf_trace_templ_##template(event_call, args); \
802} 802}
803 803
804#undef DEFINE_EVENT_PRINT 804#undef DEFINE_EVENT_PRINT
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 0387100752f0..e5e5f48dbfb3 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -47,10 +47,10 @@ enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
47#endif 47#endif
48 48
49#ifdef CONFIG_PERF_EVENTS 49#ifdef CONFIG_PERF_EVENTS
50int prof_sysenter_enable(struct ftrace_event_call *call); 50int perf_sysenter_enable(struct ftrace_event_call *call);
51void prof_sysenter_disable(struct ftrace_event_call *call); 51void perf_sysenter_disable(struct ftrace_event_call *call);
52int prof_sysexit_enable(struct ftrace_event_call *call); 52int perf_sysexit_enable(struct ftrace_event_call *call);
53void prof_sysexit_disable(struct ftrace_event_call *call); 53void perf_sysexit_disable(struct ftrace_event_call *call);
54#endif 54#endif
55 55
56#endif /* _TRACE_SYSCALL_H */ 56#endif /* _TRACE_SYSCALL_H */
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 45b4b6e55891..c502b18594cc 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4347,7 +4347,7 @@ static int perf_tp_event_match(struct perf_event *event,
4347 4347
4348static void tp_perf_event_destroy(struct perf_event *event) 4348static void tp_perf_event_destroy(struct perf_event *event)
4349{ 4349{
4350 ftrace_profile_disable(event->attr.config); 4350 perf_trace_disable(event->attr.config);
4351} 4351}
4352 4352
4353static const struct pmu *tp_perf_event_init(struct perf_event *event) 4353static const struct pmu *tp_perf_event_init(struct perf_event *event)
@@ -4361,7 +4361,7 @@ static const struct pmu *tp_perf_event_init(struct perf_event *event)
4361 !capable(CAP_SYS_ADMIN)) 4361 !capable(CAP_SYS_ADMIN))
4362 return ERR_PTR(-EPERM); 4362 return ERR_PTR(-EPERM);
4363 4363
4364 if (ftrace_profile_enable(event->attr.config)) 4364 if (perf_trace_enable(event->attr.config))
4365 return NULL; 4365 return NULL;
4366 4366
4367 event->destroy = tp_perf_event_destroy; 4367 event->destroy = tp_perf_event_destroy;
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index d00c6fe23f54..78edc6490038 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -52,7 +52,7 @@ obj-$(CONFIG_EVENT_TRACING) += trace_events.o
52obj-$(CONFIG_EVENT_TRACING) += trace_export.o 52obj-$(CONFIG_EVENT_TRACING) += trace_export.o
53obj-$(CONFIG_FTRACE_SYSCALLS) += trace_syscalls.o 53obj-$(CONFIG_FTRACE_SYSCALLS) += trace_syscalls.o
54ifeq ($(CONFIG_PERF_EVENTS),y) 54ifeq ($(CONFIG_PERF_EVENTS),y)
55obj-$(CONFIG_EVENT_TRACING) += trace_event_profile.o 55obj-$(CONFIG_EVENT_TRACING) += trace_event_perf.o
56endif 56endif
57obj-$(CONFIG_EVENT_TRACING) += trace_events_filter.o 57obj-$(CONFIG_EVENT_TRACING) += trace_events_filter.o
58obj-$(CONFIG_KPROBE_EVENT) += trace_kprobe.o 58obj-$(CONFIG_KPROBE_EVENT) += trace_kprobe.o
diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_perf.c
index e66d21e15a0f..f315b12a41d8 100644
--- a/kernel/trace/trace_event_profile.c
+++ b/kernel/trace/trace_event_perf.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * trace event based perf counter profiling 2 * trace event based perf event profiling/tracing
3 * 3 *
4 * Copyright (C) 2009 Red Hat Inc, Peter Zijlstra <pzijlstr@redhat.com> 4 * Copyright (C) 2009 Red Hat Inc, Peter Zijlstra <pzijlstr@redhat.com>
5 * Copyright (C) 2009-2010 Frederic Weisbecker <fweisbec@gmail.com> 5 * Copyright (C) 2009-2010 Frederic Weisbecker <fweisbec@gmail.com>
@@ -14,20 +14,20 @@ DEFINE_PER_CPU(struct pt_regs, perf_trace_regs);
14static char *perf_trace_buf; 14static char *perf_trace_buf;
15static char *perf_trace_buf_nmi; 15static char *perf_trace_buf_nmi;
16 16
17typedef typeof(char [FTRACE_MAX_PROFILE_SIZE]) perf_trace_t ; 17typedef typeof(char [PERF_MAX_TRACE_SIZE]) perf_trace_t ;
18 18
19/* Count the events in use (per event id, not per instance) */ 19/* Count the events in use (per event id, not per instance) */
20static int total_profile_count; 20static int total_ref_count;
21 21
22static int ftrace_profile_enable_event(struct ftrace_event_call *event) 22static int perf_trace_event_enable(struct ftrace_event_call *event)
23{ 23{
24 char *buf; 24 char *buf;
25 int ret = -ENOMEM; 25 int ret = -ENOMEM;
26 26
27 if (event->profile_count++ > 0) 27 if (event->perf_refcount++ > 0)
28 return 0; 28 return 0;
29 29
30 if (!total_profile_count) { 30 if (!total_ref_count) {
31 buf = (char *)alloc_percpu(perf_trace_t); 31 buf = (char *)alloc_percpu(perf_trace_t);
32 if (!buf) 32 if (!buf)
33 goto fail_buf; 33 goto fail_buf;
@@ -41,35 +41,35 @@ static int ftrace_profile_enable_event(struct ftrace_event_call *event)
41 rcu_assign_pointer(perf_trace_buf_nmi, buf); 41 rcu_assign_pointer(perf_trace_buf_nmi, buf);
42 } 42 }
43 43
44 ret = event->profile_enable(event); 44 ret = event->perf_event_enable(event);
45 if (!ret) { 45 if (!ret) {
46 total_profile_count++; 46 total_ref_count++;
47 return 0; 47 return 0;
48 } 48 }
49 49
50fail_buf_nmi: 50fail_buf_nmi:
51 if (!total_profile_count) { 51 if (!total_ref_count) {
52 free_percpu(perf_trace_buf_nmi); 52 free_percpu(perf_trace_buf_nmi);
53 free_percpu(perf_trace_buf); 53 free_percpu(perf_trace_buf);
54 perf_trace_buf_nmi = NULL; 54 perf_trace_buf_nmi = NULL;
55 perf_trace_buf = NULL; 55 perf_trace_buf = NULL;
56 } 56 }
57fail_buf: 57fail_buf:
58 event->profile_count--; 58 event->perf_refcount--;
59 59
60 return ret; 60 return ret;
61} 61}
62 62
63int ftrace_profile_enable(int event_id) 63int perf_trace_enable(int event_id)
64{ 64{
65 struct ftrace_event_call *event; 65 struct ftrace_event_call *event;
66 int ret = -EINVAL; 66 int ret = -EINVAL;
67 67
68 mutex_lock(&event_mutex); 68 mutex_lock(&event_mutex);
69 list_for_each_entry(event, &ftrace_events, list) { 69 list_for_each_entry(event, &ftrace_events, list) {
70 if (event->id == event_id && event->profile_enable && 70 if (event->id == event_id && event->perf_event_enable &&
71 try_module_get(event->mod)) { 71 try_module_get(event->mod)) {
72 ret = ftrace_profile_enable_event(event); 72 ret = perf_trace_event_enable(event);
73 break; 73 break;
74 } 74 }
75 } 75 }
@@ -78,16 +78,16 @@ int ftrace_profile_enable(int event_id)
78 return ret; 78 return ret;
79} 79}
80 80
81static void ftrace_profile_disable_event(struct ftrace_event_call *event) 81static void perf_trace_event_disable(struct ftrace_event_call *event)
82{ 82{
83 char *buf, *nmi_buf; 83 char *buf, *nmi_buf;
84 84
85 if (--event->profile_count > 0) 85 if (--event->perf_refcount > 0)
86 return; 86 return;
87 87
88 event->profile_disable(event); 88 event->perf_event_disable(event);
89 89
90 if (!--total_profile_count) { 90 if (!--total_ref_count) {
91 buf = perf_trace_buf; 91 buf = perf_trace_buf;
92 rcu_assign_pointer(perf_trace_buf, NULL); 92 rcu_assign_pointer(perf_trace_buf, NULL);
93 93
@@ -105,14 +105,14 @@ static void ftrace_profile_disable_event(struct ftrace_event_call *event)
105 } 105 }
106} 106}
107 107
108void ftrace_profile_disable(int event_id) 108void perf_trace_disable(int event_id)
109{ 109{
110 struct ftrace_event_call *event; 110 struct ftrace_event_call *event;
111 111
112 mutex_lock(&event_mutex); 112 mutex_lock(&event_mutex);
113 list_for_each_entry(event, &ftrace_events, list) { 113 list_for_each_entry(event, &ftrace_events, list) {
114 if (event->id == event_id) { 114 if (event->id == event_id) {
115 ftrace_profile_disable_event(event); 115 perf_trace_event_disable(event);
116 module_put(event->mod); 116 module_put(event->mod);
117 break; 117 break;
118 } 118 }
@@ -120,8 +120,8 @@ void ftrace_profile_disable(int event_id)
120 mutex_unlock(&event_mutex); 120 mutex_unlock(&event_mutex);
121} 121}
122 122
123__kprobes void *ftrace_perf_buf_prepare(int size, unsigned short type, 123__kprobes void *perf_trace_buf_prepare(int size, unsigned short type,
124 int *rctxp, unsigned long *irq_flags) 124 int *rctxp, unsigned long *irq_flags)
125{ 125{
126 struct trace_entry *entry; 126 struct trace_entry *entry;
127 char *trace_buf, *raw_data; 127 char *trace_buf, *raw_data;
@@ -162,4 +162,4 @@ err_recursion:
162 local_irq_restore(*irq_flags); 162 local_irq_restore(*irq_flags);
163 return NULL; 163 return NULL;
164} 164}
165EXPORT_SYMBOL_GPL(ftrace_perf_buf_prepare); 165EXPORT_SYMBOL_GPL(perf_trace_buf_prepare);
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 3f972ad98d04..beab8bf2f310 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -938,7 +938,7 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
938 trace_create_file("enable", 0644, call->dir, call, 938 trace_create_file("enable", 0644, call->dir, call,
939 enable); 939 enable);
940 940
941 if (call->id && call->profile_enable) 941 if (call->id && call->perf_event_enable)
942 trace_create_file("id", 0444, call->dir, call, 942 trace_create_file("id", 0444, call->dir, call,
943 id); 943 id);
944 944
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index f7a20a8bfb31..1251e367bae9 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1214,7 +1214,7 @@ static int set_print_fmt(struct trace_probe *tp)
1214#ifdef CONFIG_PERF_EVENTS 1214#ifdef CONFIG_PERF_EVENTS
1215 1215
1216/* Kprobe profile handler */ 1216/* Kprobe profile handler */
1217static __kprobes void kprobe_profile_func(struct kprobe *kp, 1217static __kprobes void kprobe_perf_func(struct kprobe *kp,
1218 struct pt_regs *regs) 1218 struct pt_regs *regs)
1219{ 1219{
1220 struct trace_probe *tp = container_of(kp, struct trace_probe, rp.kp); 1220 struct trace_probe *tp = container_of(kp, struct trace_probe, rp.kp);
@@ -1227,11 +1227,11 @@ static __kprobes void kprobe_profile_func(struct kprobe *kp,
1227 __size = SIZEOF_KPROBE_TRACE_ENTRY(tp->nr_args); 1227 __size = SIZEOF_KPROBE_TRACE_ENTRY(tp->nr_args);
1228 size = ALIGN(__size + sizeof(u32), sizeof(u64)); 1228 size = ALIGN(__size + sizeof(u32), sizeof(u64));
1229 size -= sizeof(u32); 1229 size -= sizeof(u32);
1230 if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, 1230 if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE,
1231 "profile buffer not large enough")) 1231 "profile buffer not large enough"))
1232 return; 1232 return;
1233 1233
1234 entry = ftrace_perf_buf_prepare(size, call->id, &rctx, &irq_flags); 1234 entry = perf_trace_buf_prepare(size, call->id, &rctx, &irq_flags);
1235 if (!entry) 1235 if (!entry)
1236 return; 1236 return;
1237 1237
@@ -1240,11 +1240,11 @@ static __kprobes void kprobe_profile_func(struct kprobe *kp,
1240 for (i = 0; i < tp->nr_args; i++) 1240 for (i = 0; i < tp->nr_args; i++)
1241 entry->args[i] = call_fetch(&tp->args[i].fetch, regs); 1241 entry->args[i] = call_fetch(&tp->args[i].fetch, regs);
1242 1242
1243 ftrace_perf_buf_submit(entry, size, rctx, entry->ip, 1, irq_flags, regs); 1243 perf_trace_buf_submit(entry, size, rctx, entry->ip, 1, irq_flags, regs);
1244} 1244}
1245 1245
1246/* Kretprobe profile handler */ 1246/* Kretprobe profile handler */
1247static __kprobes void kretprobe_profile_func(struct kretprobe_instance *ri, 1247static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri,
1248 struct pt_regs *regs) 1248 struct pt_regs *regs)
1249{ 1249{
1250 struct trace_probe *tp = container_of(ri->rp, struct trace_probe, rp); 1250 struct trace_probe *tp = container_of(ri->rp, struct trace_probe, rp);
@@ -1257,11 +1257,11 @@ static __kprobes void kretprobe_profile_func(struct kretprobe_instance *ri,
1257 __size = SIZEOF_KRETPROBE_TRACE_ENTRY(tp->nr_args); 1257 __size = SIZEOF_KRETPROBE_TRACE_ENTRY(tp->nr_args);
1258 size = ALIGN(__size + sizeof(u32), sizeof(u64)); 1258 size = ALIGN(__size + sizeof(u32), sizeof(u64));
1259 size -= sizeof(u32); 1259 size -= sizeof(u32);
1260 if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, 1260 if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE,
1261 "profile buffer not large enough")) 1261 "profile buffer not large enough"))
1262 return; 1262 return;
1263 1263
1264 entry = ftrace_perf_buf_prepare(size, call->id, &rctx, &irq_flags); 1264 entry = perf_trace_buf_prepare(size, call->id, &rctx, &irq_flags);
1265 if (!entry) 1265 if (!entry)
1266 return; 1266 return;
1267 1267
@@ -1271,11 +1271,11 @@ static __kprobes void kretprobe_profile_func(struct kretprobe_instance *ri,
1271 for (i = 0; i < tp->nr_args; i++) 1271 for (i = 0; i < tp->nr_args; i++)
1272 entry->args[i] = call_fetch(&tp->args[i].fetch, regs); 1272 entry->args[i] = call_fetch(&tp->args[i].fetch, regs);
1273 1273
1274 ftrace_perf_buf_submit(entry, size, rctx, entry->ret_ip, 1, 1274 perf_trace_buf_submit(entry, size, rctx, entry->ret_ip, 1,
1275 irq_flags, regs); 1275 irq_flags, regs);
1276} 1276}
1277 1277
1278static int probe_profile_enable(struct ftrace_event_call *call) 1278static int probe_perf_enable(struct ftrace_event_call *call)
1279{ 1279{
1280 struct trace_probe *tp = (struct trace_probe *)call->data; 1280 struct trace_probe *tp = (struct trace_probe *)call->data;
1281 1281
@@ -1287,7 +1287,7 @@ static int probe_profile_enable(struct ftrace_event_call *call)
1287 return enable_kprobe(&tp->rp.kp); 1287 return enable_kprobe(&tp->rp.kp);
1288} 1288}
1289 1289
1290static void probe_profile_disable(struct ftrace_event_call *call) 1290static void probe_perf_disable(struct ftrace_event_call *call)
1291{ 1291{
1292 struct trace_probe *tp = (struct trace_probe *)call->data; 1292 struct trace_probe *tp = (struct trace_probe *)call->data;
1293 1293
@@ -1312,7 +1312,7 @@ int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs)
1312 kprobe_trace_func(kp, regs); 1312 kprobe_trace_func(kp, regs);
1313#ifdef CONFIG_PERF_EVENTS 1313#ifdef CONFIG_PERF_EVENTS
1314 if (tp->flags & TP_FLAG_PROFILE) 1314 if (tp->flags & TP_FLAG_PROFILE)
1315 kprobe_profile_func(kp, regs); 1315 kprobe_perf_func(kp, regs);
1316#endif 1316#endif
1317 return 0; /* We don't tweek kernel, so just return 0 */ 1317 return 0; /* We don't tweek kernel, so just return 0 */
1318} 1318}
@@ -1326,7 +1326,7 @@ int kretprobe_dispatcher(struct kretprobe_instance *ri, struct pt_regs *regs)
1326 kretprobe_trace_func(ri, regs); 1326 kretprobe_trace_func(ri, regs);
1327#ifdef CONFIG_PERF_EVENTS 1327#ifdef CONFIG_PERF_EVENTS
1328 if (tp->flags & TP_FLAG_PROFILE) 1328 if (tp->flags & TP_FLAG_PROFILE)
1329 kretprobe_profile_func(ri, regs); 1329 kretprobe_perf_func(ri, regs);
1330#endif 1330#endif
1331 return 0; /* We don't tweek kernel, so just return 0 */ 1331 return 0; /* We don't tweek kernel, so just return 0 */
1332} 1332}
@@ -1359,8 +1359,8 @@ static int register_probe_event(struct trace_probe *tp)
1359 call->unregfunc = probe_event_disable; 1359 call->unregfunc = probe_event_disable;
1360 1360
1361#ifdef CONFIG_PERF_EVENTS 1361#ifdef CONFIG_PERF_EVENTS
1362 call->profile_enable = probe_profile_enable; 1362 call->perf_event_enable = probe_perf_enable;
1363 call->profile_disable = probe_profile_disable; 1363 call->perf_event_disable = probe_perf_disable;
1364#endif 1364#endif
1365 call->data = tp; 1365 call->data = tp;
1366 ret = trace_add_event_call(call); 1366 ret = trace_add_event_call(call);
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 7e6e84fb7b6c..33c2a5b769dc 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -428,12 +428,12 @@ core_initcall(init_ftrace_syscalls);
428 428
429#ifdef CONFIG_PERF_EVENTS 429#ifdef CONFIG_PERF_EVENTS
430 430
431static DECLARE_BITMAP(enabled_prof_enter_syscalls, NR_syscalls); 431static DECLARE_BITMAP(enabled_perf_enter_syscalls, NR_syscalls);
432static DECLARE_BITMAP(enabled_prof_exit_syscalls, NR_syscalls); 432static DECLARE_BITMAP(enabled_perf_exit_syscalls, NR_syscalls);
433static int sys_prof_refcount_enter; 433static int sys_perf_refcount_enter;
434static int sys_prof_refcount_exit; 434static int sys_perf_refcount_exit;
435 435
436static void prof_syscall_enter(struct pt_regs *regs, long id) 436static void perf_syscall_enter(struct pt_regs *regs, long id)
437{ 437{
438 struct syscall_metadata *sys_data; 438 struct syscall_metadata *sys_data;
439 struct syscall_trace_enter *rec; 439 struct syscall_trace_enter *rec;
@@ -443,7 +443,7 @@ static void prof_syscall_enter(struct pt_regs *regs, long id)
443 int size; 443 int size;
444 444
445 syscall_nr = syscall_get_nr(current, regs); 445 syscall_nr = syscall_get_nr(current, regs);
446 if (!test_bit(syscall_nr, enabled_prof_enter_syscalls)) 446 if (!test_bit(syscall_nr, enabled_perf_enter_syscalls))
447 return; 447 return;
448 448
449 sys_data = syscall_nr_to_meta(syscall_nr); 449 sys_data = syscall_nr_to_meta(syscall_nr);
@@ -455,11 +455,11 @@ static void prof_syscall_enter(struct pt_regs *regs, long id)
455 size = ALIGN(size + sizeof(u32), sizeof(u64)); 455 size = ALIGN(size + sizeof(u32), sizeof(u64));
456 size -= sizeof(u32); 456 size -= sizeof(u32);
457 457
458 if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, 458 if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE,
459 "profile buffer not large enough")) 459 "perf buffer not large enough"))
460 return; 460 return;
461 461
462 rec = (struct syscall_trace_enter *)ftrace_perf_buf_prepare(size, 462 rec = (struct syscall_trace_enter *)perf_trace_buf_prepare(size,
463 sys_data->enter_event->id, &rctx, &flags); 463 sys_data->enter_event->id, &rctx, &flags);
464 if (!rec) 464 if (!rec)
465 return; 465 return;
@@ -467,10 +467,10 @@ static void prof_syscall_enter(struct pt_regs *regs, long id)
467 rec->nr = syscall_nr; 467 rec->nr = syscall_nr;
468 syscall_get_arguments(current, regs, 0, sys_data->nb_args, 468 syscall_get_arguments(current, regs, 0, sys_data->nb_args,
469 (unsigned long *)&rec->args); 469 (unsigned long *)&rec->args);
470 ftrace_perf_buf_submit(rec, size, rctx, 0, 1, flags, regs); 470 perf_trace_buf_submit(rec, size, rctx, 0, 1, flags, regs);
471} 471}
472 472
473int prof_sysenter_enable(struct ftrace_event_call *call) 473int perf_sysenter_enable(struct ftrace_event_call *call)
474{ 474{
475 int ret = 0; 475 int ret = 0;
476 int num; 476 int num;
@@ -478,34 +478,34 @@ int prof_sysenter_enable(struct ftrace_event_call *call)
478 num = ((struct syscall_metadata *)call->data)->syscall_nr; 478 num = ((struct syscall_metadata *)call->data)->syscall_nr;
479 479
480 mutex_lock(&syscall_trace_lock); 480 mutex_lock(&syscall_trace_lock);
481 if (!sys_prof_refcount_enter) 481 if (!sys_perf_refcount_enter)
482 ret = register_trace_sys_enter(prof_syscall_enter); 482 ret = register_trace_sys_enter(perf_syscall_enter);
483 if (ret) { 483 if (ret) {
484 pr_info("event trace: Could not activate" 484 pr_info("event trace: Could not activate"
485 "syscall entry trace point"); 485 "syscall entry trace point");
486 } else { 486 } else {
487 set_bit(num, enabled_prof_enter_syscalls); 487 set_bit(num, enabled_perf_enter_syscalls);
488 sys_prof_refcount_enter++; 488 sys_perf_refcount_enter++;
489 } 489 }
490 mutex_unlock(&syscall_trace_lock); 490 mutex_unlock(&syscall_trace_lock);
491 return ret; 491 return ret;
492} 492}
493 493
494void prof_sysenter_disable(struct ftrace_event_call *call) 494void perf_sysenter_disable(struct ftrace_event_call *call)
495{ 495{
496 int num; 496 int num;
497 497
498 num = ((struct syscall_metadata *)call->data)->syscall_nr; 498 num = ((struct syscall_metadata *)call->data)->syscall_nr;
499 499
500 mutex_lock(&syscall_trace_lock); 500 mutex_lock(&syscall_trace_lock);
501 sys_prof_refcount_enter--; 501 sys_perf_refcount_enter--;
502 clear_bit(num, enabled_prof_enter_syscalls); 502 clear_bit(num, enabled_perf_enter_syscalls);
503 if (!sys_prof_refcount_enter) 503 if (!sys_perf_refcount_enter)
504 unregister_trace_sys_enter(prof_syscall_enter); 504 unregister_trace_sys_enter(perf_syscall_enter);
505 mutex_unlock(&syscall_trace_lock); 505 mutex_unlock(&syscall_trace_lock);
506} 506}
507 507
508static void prof_syscall_exit(struct pt_regs *regs, long ret) 508static void perf_syscall_exit(struct pt_regs *regs, long ret)
509{ 509{
510 struct syscall_metadata *sys_data; 510 struct syscall_metadata *sys_data;
511 struct syscall_trace_exit *rec; 511 struct syscall_trace_exit *rec;
@@ -515,7 +515,7 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret)
515 int size; 515 int size;
516 516
517 syscall_nr = syscall_get_nr(current, regs); 517 syscall_nr = syscall_get_nr(current, regs);
518 if (!test_bit(syscall_nr, enabled_prof_exit_syscalls)) 518 if (!test_bit(syscall_nr, enabled_perf_exit_syscalls))
519 return; 519 return;
520 520
521 sys_data = syscall_nr_to_meta(syscall_nr); 521 sys_data = syscall_nr_to_meta(syscall_nr);
@@ -530,11 +530,11 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret)
530 * Impossible, but be paranoid with the future 530 * Impossible, but be paranoid with the future
531 * How to put this check outside runtime? 531 * How to put this check outside runtime?
532 */ 532 */
533 if (WARN_ONCE(size > FTRACE_MAX_PROFILE_SIZE, 533 if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE,
534 "exit event has grown above profile buffer size")) 534 "exit event has grown above perf buffer size"))
535 return; 535 return;
536 536
537 rec = (struct syscall_trace_exit *)ftrace_perf_buf_prepare(size, 537 rec = (struct syscall_trace_exit *)perf_trace_buf_prepare(size,
538 sys_data->exit_event->id, &rctx, &flags); 538 sys_data->exit_event->id, &rctx, &flags);
539 if (!rec) 539 if (!rec)
540 return; 540 return;
@@ -542,10 +542,10 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret)
542 rec->nr = syscall_nr; 542 rec->nr = syscall_nr;
543 rec->ret = syscall_get_return_value(current, regs); 543 rec->ret = syscall_get_return_value(current, regs);
544 544
545 ftrace_perf_buf_submit(rec, size, rctx, 0, 1, flags, regs); 545 perf_trace_buf_submit(rec, size, rctx, 0, 1, flags, regs);
546} 546}
547 547
548int prof_sysexit_enable(struct ftrace_event_call *call) 548int perf_sysexit_enable(struct ftrace_event_call *call)
549{ 549{
550 int ret = 0; 550 int ret = 0;
551 int num; 551 int num;
@@ -553,30 +553,30 @@ int prof_sysexit_enable(struct ftrace_event_call *call)
553 num = ((struct syscall_metadata *)call->data)->syscall_nr; 553 num = ((struct syscall_metadata *)call->data)->syscall_nr;
554 554
555 mutex_lock(&syscall_trace_lock); 555 mutex_lock(&syscall_trace_lock);
556 if (!sys_prof_refcount_exit) 556 if (!sys_perf_refcount_exit)
557 ret = register_trace_sys_exit(prof_syscall_exit); 557 ret = register_trace_sys_exit(perf_syscall_exit);
558 if (ret) { 558 if (ret) {
559 pr_info("event trace: Could not activate" 559 pr_info("event trace: Could not activate"
560 "syscall exit trace point"); 560 "syscall exit trace point");
561 } else { 561 } else {
562 set_bit(num, enabled_prof_exit_syscalls); 562 set_bit(num, enabled_perf_exit_syscalls);
563 sys_prof_refcount_exit++; 563 sys_perf_refcount_exit++;
564 } 564 }
565 mutex_unlock(&syscall_trace_lock); 565 mutex_unlock(&syscall_trace_lock);
566 return ret; 566 return ret;
567} 567}
568 568
569void prof_sysexit_disable(struct ftrace_event_call *call) 569void perf_sysexit_disable(struct ftrace_event_call *call)
570{ 570{
571 int num; 571 int num;
572 572
573 num = ((struct syscall_metadata *)call->data)->syscall_nr; 573 num = ((struct syscall_metadata *)call->data)->syscall_nr;
574 574
575 mutex_lock(&syscall_trace_lock); 575 mutex_lock(&syscall_trace_lock);
576 sys_prof_refcount_exit--; 576 sys_perf_refcount_exit--;
577 clear_bit(num, enabled_prof_exit_syscalls); 577 clear_bit(num, enabled_perf_exit_syscalls);
578 if (!sys_prof_refcount_exit) 578 if (!sys_perf_refcount_exit)
579 unregister_trace_sys_exit(prof_syscall_exit); 579 unregister_trace_sys_exit(perf_syscall_exit);
580 mutex_unlock(&syscall_trace_lock); 580 mutex_unlock(&syscall_trace_lock);
581} 581}
582 582
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-26 18:05:19 -0500