Messages in this thread | | | Date | Thu, 15 Oct 2015 22:25:45 -0400 | From | Steven Rostedt <> | Subject | Re: [REPOST PATCH] ftrace: Calculate the correct dyn_ftrace number to report to the userspace |
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On Thu, 17 Sep 2015 00:19:42 +0800 Minfei Huang <mnfhuang@gmail.com> wrote:
> 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. >
Bah, your emails got lost in my Inbox. Sorry about that.
I'll make an effort to look at this first thing tomorrow.
[ Cc'ing myself to remind me ]
-- Steve
> 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();
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