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Commit 883a1e86 authored by Minfei Huang's avatar Minfei Huang Committed by Steven Rostedt
Browse files

ftrace: Calculate the correct dyn_ftrace number to report to the userspace 

Now, ftrace only calculate the dyn_ftrace number in the adding
breakpoint loop, not in adding update and finish update loop.

Calculate the correct dyn_ftrace, once ftrace reports the failure message
to the userspace.

Link: http://lkml.kernel.org/r/1442420382-13130-1-git-send-email-mnfhuang@gmail.com



Signed-off-by: default avatarMinfei Huang <mnfhuang@gmail.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 30616929

arch/x86/kernel/ftrace.c

+4 −0
Original line number Diff line number Diff line
@@ -556,6 +556,7 @@ void ftrace_replace_code(int enable) 
	run_sync();



	report = "updating code";

	count = 0;



	for_ftrace_rec_iter(iter) {

		rec = ftrace_rec_iter_record(iter);
@@ -563,11 +564,13 @@ void ftrace_replace_code(int enable) 
		ret = add_update(rec, enable);

		if (ret)

			goto remove_breakpoints;

		count++;

	}



	run_sync();



	report = "removing breakpoints";

	count = 0;



	for_ftrace_rec_iter(iter) {

		rec = ftrace_rec_iter_record(iter);
@@ -575,6 +578,7 @@ void ftrace_replace_code(int enable) 
		ret = finish_update(rec, enable);

		if (ret)

			goto remove_breakpoints;

		count++;

	}



	run_sync();