Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: Fix return of trace_dump_stack()
  ksym_tracer: Fix bad cast
  tracing/power: Remove two exports
  tracing: Change event->profile_count to be int type
  tracing: Simplify trace_option_write()
  tracing: Remove useless trace option
  tracing: Use seq file for trace_clock
  tracing: Use seq file for trace_options
  function-graph: Allow writing the same val to set_graph_function
  ftrace: Call trace_parser_clear() properly
  ftrace: Return EINVAL when writing invalid val to set_ftrace_filter
  tracing: Move a printk out of ftrace_raw_reg_event_foo()
  tracing: Pull up calls to trace_define_common_fields()
  tracing: Extract duplicate ftrace_raw_init_event_foo()
  ftrace.h: Use common pr_info fmt string
  tracing: Add stack trace to irqsoff tracer
  tracing: Add trace_dump_stack()
  ring-buffer: Move resize integrity check under reader lock
  ring-buffer: Use sync sched protection on ring buffer resizing
  tracing: Fix wrong usage of strstrip in trace_ksyms

4 files changed, 13 insertions, 56 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 38f8d6553831..2233c98d80df 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -131,7 +131,7 @@ struct ftrace_event_call {
         void                    *mod;
         void                    *data;
 
-        atomic_t                profile_count;
+        int                     profile_count;
         int                     (*profile_enable)(struct ftrace_event_call *);
         void                    (*profile_disable)(struct ftrace_event_call *);
 };
@@ -158,7 +158,7 @@ enum {
         FILTER_PTR_STRING,
 };
 
-extern int trace_define_common_fields(struct ftrace_event_call *call);
+extern int trace_event_raw_init(struct ftrace_event_call *call);
 extern int trace_define_field(struct ftrace_event_call *call, const char *type,
                               const char *name, int offset, int size,
                               int is_signed, int filter_type);
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4d9c916d06d9..3fc9f5aab5f8 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -535,6 +535,8 @@ extern int
 __trace_printk(unsigned long ip, const char *fmt, ...)
         __attribute__ ((format (printf, 2, 3)));
 
+extern void trace_dump_stack(void);
+
 /*
  * The double __builtin_constant_p is because gcc will give us an error
  * if we try to allocate the static variable to fmt if it is not a
@@ -568,6 +570,7 @@ trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
 static inline void tracing_start(void) { }
 static inline void tracing_stop(void) { }
 static inline void ftrace_off_permanent(void) { }
+static inline void trace_dump_stack(void) { }
 static inline int
 trace_printk(const char *fmt, ...)
 {
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 939a61507ac5..65793e90d6f6 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -102,12 +102,10 @@ struct perf_event_attr;
 #ifdef CONFIG_EVENT_PROFILE
 
 #define TRACE_SYS_ENTER_PROFILE_INIT(sname)                                    \
-        .profile_count = ATOMIC_INIT(-1),                                      \
         .profile_enable = prof_sysenter_enable,                                \
         .profile_disable = prof_sysenter_disable,
 
 #define TRACE_SYS_EXIT_PROFILE_INIT(sname)                                     \
-        .profile_count = ATOMIC_INIT(-1),                                      \
         .profile_enable = prof_sysexit_enable,                                 \
         .profile_disable = prof_sysexit_disable,
 #else
@@ -145,7 +143,7 @@ struct perf_event_attr;
                 .name                   = "sys_enter"#sname,            \
                 .system                 = "syscalls",                   \
                 .event                  = &enter_syscall_print_##sname, \
-                .raw_init               = init_syscall_trace,           \
+                .raw_init               = trace_event_raw_init,         \
                 .show_format            = syscall_enter_format,         \
                 .define_fields          = syscall_enter_define_fields,  \
                 .regfunc                = reg_event_syscall_enter,      \
@@ -167,7 +165,7 @@ struct perf_event_attr;
                 .name                   = "sys_exit"#sname,             \
                 .system                 = "syscalls",                   \
                 .event                  = &exit_syscall_print_##sname,  \
-                .raw_init               = init_syscall_trace,           \
+                .raw_init               = trace_event_raw_init,         \
                 .show_format            = syscall_exit_format,          \
                 .define_fields          = syscall_exit_define_fields,   \
                 .regfunc                = reg_event_syscall_exit,       \
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index d1b3de9c1a71..73523151a731 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -436,10 +436,6 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call)	\
         struct ftrace_raw_##call field;                                 \
         int ret;                                                        \
                                                                         \
-        ret = trace_define_common_fields(event_call);                   \
-        if (ret)                                                        \
-                return ret;                                             \
-                                                                        \
         tstruct;                                                        \
                                                                         \
         return ret;                                                     \
@@ -559,13 +555,7 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
  *
  * static int ftrace_reg_event_<call>(struct ftrace_event_call *unused)
  * {
- *      int ret;
- *
- *      ret = register_trace_<call>(ftrace_event_<call>);
- *      if (!ret)
- *              pr_info("event trace: Could not activate trace point "
- *                      "probe to  <call>");
- *      return ret;
+ *      return register_trace_<call>(ftrace_event_<call>);
  * }
  *
  * static void ftrace_unreg_event_<call>(struct ftrace_event_call *unused)
@@ -623,23 +613,12 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
  *      .trace                  = ftrace_raw_output_<call>, <-- stage 2
  * };
  *
- * static int ftrace_raw_init_event_<call>(struct ftrace_event_call *unused)
- * {
- *      int id;
- *
- *      id = register_ftrace_event(&ftrace_event_type_<call>);
- *      if (!id)
- *              return -ENODEV;
- *      event_<call>.id = id;
- *      return 0;
- * }
- *
  * static struct ftrace_event_call __used
  * __attribute__((__aligned__(4)))
  * __attribute__((section("_ftrace_events"))) event_<call> = {
  *      .name                   = "<call>",
  *      .system                 = "<system>",
- *      .raw_init               = ftrace_raw_init_event_<call>,
+ *      .raw_init               = trace_event_raw_init,
  *      .regfunc                = ftrace_reg_event_<call>,
  *      .unregfunc              = ftrace_unreg_event_<call>,
  *      .show_format            = ftrace_format_<call>,
@@ -647,13 +626,9 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
  *
  */
 
-#undef TP_FMT
-#define TP_FMT(fmt, args...)    fmt "\n", ##args
-
 #ifdef CONFIG_EVENT_PROFILE
 
 #define _TRACE_PROFILE_INIT(call)                                       \
-        .profile_count = ATOMIC_INIT(-1),                               \
         .profile_enable = ftrace_profile_enable_##call,                 \
         .profile_disable = ftrace_profile_disable_##call,
 
@@ -728,13 +703,7 @@ static void ftrace_raw_event_##call(proto)				\
                                                                         \
 static int ftrace_raw_reg_event_##call(struct ftrace_event_call *unused)\
 {                                                                       \
-        int ret;                                                        \
-                                                                        \
-        ret = register_trace_##call(ftrace_raw_event_##call);           \
-        if (ret)                                                        \
-                pr_info("event trace: Could not activate trace point "  \
-                        "probe to " #call "\n");                        \
-        return ret;                                                     \
+        return register_trace_##call(ftrace_raw_event_##call);          \
 }                                                                       \
                                                                         \
 static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\
@@ -744,19 +713,7 @@ static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\
                                                                         \
 static struct trace_event ftrace_event_type_##call = {                  \
         .trace                  = ftrace_raw_output_##call,             \
-};                                                                      \
-                                                                        \
-static int ftrace_raw_init_event_##call(struct ftrace_event_call *unused)\
-{                                                                       \
-        int id;                                                         \
-                                                                        \
-        id = register_ftrace_event(&ftrace_event_type_##call);          \
-        if (!id)                                                        \
-                return -ENODEV;                                         \
-        event_##call.id = id;                                           \
-        INIT_LIST_HEAD(&event_##call.fields);                           \
-        return 0;                                                       \
-}
+};
 
 #undef DEFINE_EVENT_PRINT
 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
@@ -776,7 +733,7 @@ __attribute__((section("_ftrace_events"))) event_##call = {		\
         .name                   = #call,                                \
         .system                 = __stringify(TRACE_SYSTEM),            \
         .event                  = &ftrace_event_type_##call,            \
-        .raw_init               = ftrace_raw_init_event_##call,         \
+        .raw_init               = trace_event_raw_init,                 \
         .regfunc                = ftrace_raw_reg_event_##call,          \
         .unregfunc              = ftrace_raw_unreg_event_##call,        \
         .show_format            = ftrace_format_##template,             \
@@ -793,7 +750,7 @@ __attribute__((section("_ftrace_events"))) event_##call = {		\
         .name                   = #call,                                \
         .system                 = __stringify(TRACE_SYSTEM),            \
         .event                  = &ftrace_event_type_##call,            \
-        .raw_init               = ftrace_raw_init_event_##call,         \
+        .raw_init               = trace_event_raw_init,                 \
         .regfunc                = ftrace_raw_reg_event_##call,          \
         .unregfunc              = ftrace_raw_unreg_event_##call,        \
         .show_format            = ftrace_format_##call,                 \
@@ -953,7 +910,6 @@ end:									\
         perf_swevent_put_recursion_context(rctx);                       \
 end_recursion:                                                          \
         local_irq_restore(irq_flags);                                   \
-                                                                        \
 }
 
 #undef DEFINE_EVENT