diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-03-03 13:48:42 -0500 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-03-24 20:51:48 -0400 |
| commit | dbeafd0d6131d0f6ae8cd7551f5f4bf8c54aa49a (patch) | |
| tree | a02766ddf429cfef75814ba584feea25cf9425e5 /kernel/trace/trace.h | |
| parent | 9afecfbb95198ec3ea6d52cca4711ea314f29ec6 (diff) | |
| download | linux-dbeafd0d6131d0f6ae8cd7551f5f4bf8c54aa49a.tar.bz2 | |
ftrace: Have function tracing start in early boot up
Register the function tracer right after the tracing buffers are initialized
in early boot up. This will allow function tracing to begin early if it is
enabled via the kernel command line.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index ae1cce91fead..571acee52a32 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -896,6 +896,7 @@ int using_ftrace_ops_list_func(void); void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d_tracer); void ftrace_init_tracefs_toplevel(struct trace_array *tr, struct dentry *d_tracer); +int init_function_trace(void); #else static inline int ftrace_trace_task(struct trace_array *tr) { @@ -914,6 +915,7 @@ ftrace_init_global_array_ops(struct trace_array *tr) { } static inline void ftrace_reset_array_ops(struct trace_array *tr) { } static inline void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d) { } static inline void ftrace_init_tracefs_toplevel(struct trace_array *tr, struct dentry *d) { } +static inline int init_function_trace(void) { return 0; } /* ftace_func_t type is not defined, use macro instead of static inline */ #define ftrace_init_array_ops(tr, func) do { } while (0) #endif /* CONFIG_FUNCTION_TRACER */ |