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Commit 8ed3e2cf authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
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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: default avatarSteven Rostedt <rostedt@goodmis.org>
parent f0cf973a

include/linux/ftrace.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -319,6 +319,8 @@ extern void ftrace_caller(void); 
extern void ftrace_call(void);

extern void ftrace_call(void);

extern void mcount_call(void);

extern void mcount_call(void);





void ftrace_modify_all_code(int command);



#ifndef FTRACE_ADDR

#ifndef FTRACE_ADDR

#define FTRACE_ADDR ((unsigned long)ftrace_caller)

#define FTRACE_ADDR ((unsigned long)ftrace_caller)

#endif

#endif

kernel/trace/ftrace.c

+13 −8
Original line number Original line Diff line number Diff line
@@ -1811,22 +1811,27 @@ int __weak ftrace_arch_code_modify_post_process(void) 
	return 0;

	return 0;

}

}





static int __ftrace_modify_code(void *data)

void ftrace_modify_all_code(int command)

{

{

	int *command = data;

	if (command & FTRACE_UPDATE_CALLS)



	if (*command & FTRACE_UPDATE_CALLS)

		ftrace_replace_code(1);

		ftrace_replace_code(1);

	else if (*command & FTRACE_DISABLE_CALLS)

	else if (command & FTRACE_DISABLE_CALLS)

		ftrace_replace_code(0);

		ftrace_replace_code(0);





	if (*command & FTRACE_UPDATE_TRACE_FUNC)

	if (command & FTRACE_UPDATE_TRACE_FUNC)

		ftrace_update_ftrace_func(ftrace_trace_function);

		ftrace_update_ftrace_func(ftrace_trace_function);





	if (*command & FTRACE_START_FUNC_RET)

	if (command & FTRACE_START_FUNC_RET)

		ftrace_enable_ftrace_graph_caller();

		ftrace_enable_ftrace_graph_caller();

	else if (*command & FTRACE_STOP_FUNC_RET)

	else if (command & FTRACE_STOP_FUNC_RET)

		ftrace_disable_ftrace_graph_caller();

		ftrace_disable_ftrace_graph_caller();

}



static int __ftrace_modify_code(void *data)

{

	int *command = data;



	ftrace_modify_all_code(*command);





	return 0;

	return 0;

}

}