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authorJason Baron <jbaron@redhat.com>2009-08-10 16:52:44 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2009-08-11 20:35:27 +0200
commit69fd4f0eb2ececbf8ade55e31a933e174965745e (patch)
treebebe7f5b88b8e2c6c240390e4e546d0c3522e79b /include
parentf744bd576a827c5b02e756b81fc2578edf8179b8 (diff)
tracing: Add ftrace_event_call void * 'data' field
add an optional void * pointer to 'ftrace_event_call' that is passed in for regfunc and unregfunc. This prepares for syscall tracepoints creation by passing the name of the syscall we want to trace and then retrieve its number through our arch syscall table. Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Jiaying Zhang <jiayingz@google.com> Cc: Martin Bligh <mbligh@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ftrace_event.h5
-rw-r--r--include/trace/ftrace.h4
2 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index ac8c6f8cf24..8544f121d9f 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -112,8 +112,8 @@ struct ftrace_event_call {
struct dentry *dir;
struct trace_event *event;
int enabled;
- int (*regfunc)(void);
- void (*unregfunc)(void);
+ int (*regfunc)(void *);
+ void (*unregfunc)(void *);
int id;
int (*raw_init)(void);
int (*show_format)(struct trace_seq *s);
@@ -122,6 +122,7 @@ struct ftrace_event_call {
int filter_active;
struct event_filter *filter;
void *mod;
+ void *data;
atomic_t profile_count;
int (*profile_enable)(struct ftrace_event_call *);
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 25d3b02a06f..46d81b5e861 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -568,7 +568,7 @@ static void ftrace_raw_event_##call(proto) \
trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \
} \
\
-static int ftrace_raw_reg_event_##call(void) \
+static int ftrace_raw_reg_event_##call(void *ptr) \
{ \
int ret; \
\
@@ -579,7 +579,7 @@ static int ftrace_raw_reg_event_##call(void) \
return ret; \
} \
\
-static void ftrace_raw_unreg_event_##call(void) \
+static void ftrace_raw_unreg_event_##call(void *ptr) \
{ \
unregister_trace_##call(ftrace_raw_event_##call); \
} \