Messages in this thread | | | From | Joel Fernandes <> | Date | Mon, 5 Feb 2018 23:15:32 -0800 | Subject | Re: [RFC] tracing: Improve design of preemptirq tracepoints and its users |
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On Mon, Feb 5, 2018 at 6:39 PM, Joel Fernandes <joelaf@google.com> wrote: > This patch detaches the preemptirq tracepoints from the tracers and > keeps it separate. With this, several ifdefs are cleaner, and lockdep > and other users can use the preemptirq tracepoints by registering probes > onto them. This makes it much cleaner, but not just that: PROVE_LOCKING > and CONFIG_IRQSOFF_TRACER can be enabled now at the same time and we > get rid of all the horrific ifdeferry around PROVE_LOCKING. >
Sorry for the misstatement, irqsoff tracer and PROVE_LOCKING can still be used at the same time (without this patch). I will correct the commit message in the next rev. However this patch avoids the complication that arises when enabling the 2 together, by eliminating time_hardirqs_on/off.
thanks,
- Joel
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