AcoSail/kernel_optimize_test
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ftrace: Calculate the correct dyn_ftrace number to report to the userspace

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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: Minfei Huang <mnfhuang@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Minfei Huang 2015-09-17 00:19:42 +08:00 committed by Steven Rostedt
parent 3061692921
commit 883a1e867e
1 changed files with 4 additions and 0 deletions
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4
arch/x86/kernel/ftrace.c
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@ -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();