ftrace: Make ftrace_modify_all_code() global for archs to use
Rename __ftrace_modify_code() to ftrace_modify_all_code() and make
it global for all archs to use. This will remove the duplication
of code, as archs that can modify code without stop_machine()
can use it directly outside of the stop_machine() call.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 609948e..cd72ace 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -319,6 +319,8 @@
extern void ftrace_call(void);
extern void mcount_call(void);
+void ftrace_modify_all_code(int command);
+
#ifndef FTRACE_ADDR
#define FTRACE_ADDR ((unsigned long)ftrace_caller)
#endif
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index ef08262..3c345825cc 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1811,22 +1811,27 @@
return 0;
}
+void ftrace_modify_all_code(int command)
+{
+ if (command & FTRACE_UPDATE_CALLS)
+ ftrace_replace_code(1);
+ else if (command & FTRACE_DISABLE_CALLS)
+ ftrace_replace_code(0);
+
+ if (command & FTRACE_UPDATE_TRACE_FUNC)
+ ftrace_update_ftrace_func(ftrace_trace_function);
+
+ if (command & FTRACE_START_FUNC_RET)
+ ftrace_enable_ftrace_graph_caller();
+ else if (command & FTRACE_STOP_FUNC_RET)
+ ftrace_disable_ftrace_graph_caller();
+}
+
static int __ftrace_modify_code(void *data)
{
int *command = data;
- if (*command & FTRACE_UPDATE_CALLS)
- ftrace_replace_code(1);
- else if (*command & FTRACE_DISABLE_CALLS)
- ftrace_replace_code(0);
-
- if (*command & FTRACE_UPDATE_TRACE_FUNC)
- ftrace_update_ftrace_func(ftrace_trace_function);
-
- if (*command & FTRACE_START_FUNC_RET)
- ftrace_enable_ftrace_graph_caller();
- else if (*command & FTRACE_STOP_FUNC_RET)
- ftrace_disable_ftrace_graph_caller();
+ ftrace_modify_all_code(*command);
return 0;
}