Messages in this thread Patch in this message | | | From | Minfei Huang <> | Subject | [REPOST PATCH] ftrace: Calculate the correct dyn_ftrace number to report to the userspace | Date | Thu, 17 Sep 2015 00:19:42 +0800 |
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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.
Signed-off-by: Minfei Huang <mnfhuang@gmail.com> --- arch/x86/kernel/ftrace.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 8b7b0a5..311bcf3 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -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(); -- 2.4.0
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