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authorLi Zefan <lizf@cn.fujitsu.com>2009-12-08 04:14:20 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2009-12-13 18:34:23 +0100
commit87d9b4e1c52867a45331a9a5495f6448e0c68b23 (patch)
treedcac60fbfa60eec687d723fad780165cec5fd9b1 /kernel/trace
parentftrace.h: Use common pr_info fmt string (diff)
downloadlinux-87d9b4e1c52867a45331a9a5495f6448e0c68b23.tar.xz
linux-87d9b4e1c52867a45331a9a5495f6448e0c68b23.zip
tracing: Extract duplicate ftrace_raw_init_event_foo()
Use a generic trace_event_raw_init() function for all event's raw_init callbacks (but kprobes) instead of defining the same version for each of these. This shrinks the kernel code: text data bss dec hex filename 5355293 1961928 7103260 14420481 dc0a01 vmlinux.o.old 5346802 1961864 7103260 14411926 dbe896 vmlinux.o raw_init can't be removed, because ftrace events and kprobe events use different raw_init callbacks. Though it's possible to totally remove raw_init, I choose to leave it as it is for now. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <4B1DC48C.7080603@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_events.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 1d18315dc836..8ed66e0d476b 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -105,6 +105,20 @@ void trace_destroy_fields(struct ftrace_event_call *call)
}
}
+int trace_event_raw_init(struct ftrace_event_call *call)
+{
+ int id;
+
+ id = register_ftrace_event(call->event);
+ if (!id)
+ return -ENODEV;
+ call->id = id;
+ INIT_LIST_HEAD(&call->fields);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(trace_event_raw_init);
+
static void ftrace_event_enable_disable(struct ftrace_event_call *call,
int enable)
{