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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-12-08 06:14:52 +0300 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-12-13 20:37:25 +0300 |
| commit | 3b8e4273814a7f9e9a74ece517d9206fea919aaa (patch) | |
| tree | aa7960d90fe8cd4b04537bf9ea84ac73cb3b69ad /include/trace/ftrace.h | |
| parent | 614a71a26ba3d97e9fa85649db69a682b78e407d (diff) | |
| download | linux-3b8e4273814a7f9e9a74ece517d9206fea919aaa.tar.xz | |
tracing: Move a printk out of ftrace_raw_reg_event_foo()
Move the printk from each ftrace_raw_reg_event_foo() to
its caller ftrace_event_enable_disable(). This avoids each
regfunc trace event callbacks to handle a same error report
that can be carried from the caller.
See how much space this saves:
text data bss dec hex filename
5345151 1961864 7103260 14410275 dbe223 vmlinux.o.old
5331487 1961864 7103260 14396611 dbacc3 vmlinux.o
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Jason Baron <jbaron@redhat.com>
LKML-Reference: <4B1DC4AC.802@cn.fujitsu.com>
[start cmdline record before calling regfunc to avoid lost
window of pid to comm resolution]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'include/trace/ftrace.h')
| -rw-r--r-- | include/trace/ftrace.h | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 2af2f7a2c1bd..0c21af85211c 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -555,13 +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) @@ -710,13 +704,7 @@ 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 %s\n", #call); \ - return ret; \ + return register_trace_##call(ftrace_raw_event_##call); \ } \ \ static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\ |