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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-12-08 11:14:20 +0800 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-12-13 18:34:23 +0100 |
| commit | 87d9b4e1c52867a45331a9a5495f6448e0c68b23 (patch) | |
| tree | dcac60fbfa60eec687d723fad780165cec5fd9b1 /kernel/trace/trace_events.c | |
| parent | 4819568f23a8bef0ca99b740ca60fe2450ab0aac (diff) | |
| download | linux-87d9b4e1c52867a45331a9a5495f6448e0c68b23.tar.gz linux-87d9b4e1c52867a45331a9a5495f6448e0c68b23.tar.bz2 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/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 14 |
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) { |