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Date: Wed, 22 Jul 2015 11:13:02 +0800 From: Minfei Huang <mhuang@...hat.com> To: rostedt@...dmis.org, mingo@...hat.com, tglx@...utronix.de, hpa@...or.com Cc: x86@...nel.org, linux-kernel@...r.kernel.org, Minfei Huang <mnfhuang@...il.com> Subject: [PATCH] ftrace: Calculate the correct dyn_ftrace number to report to the userspace From: Minfei Huang <mnfhuang@...il.com> 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@...il.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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