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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/linux/ftrace_event.h
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/linux/ftrace_event.h')
-rw-r--r--include/linux/ftrace_event.h5
1 files changed, 3 insertions, 2 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 *);