Messages in this thread | | | Date | Wed, 2 Dec 2015 09:15:33 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH] ftrace: Remove use of control list and ops |
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On Wed, 2 Dec 2015 08:59:11 +0100 Jiri Olsa <jolsa@redhat.com> wrote:
> > - op->func(ip, parent_ip, op, regs); > > + preempt_disable_notrace(); > > I was wondering about not disabling preemption in the original > ftrace_ops_recurs_func function.. thats why I added new one ;-)
Yeah, I paused on that too. But then I realized that pretty much all callers of function tracing disable preemption too, so it shouldn't cause really any more overhead.
-- Steve
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