- On Oct 28, 2020, at 5:23 PM, Alexei Starovoitov
alexei.starovoi...@gmail.com wrote:
> On Tue, Oct 27, 2020 at 09:37:08AM -0400, Mathieu Desnoyers wrote:
>>
>> - On Oct 26, 2020, at 6:43 PM, Alexei Starovoitov
>> alexei.starovoi...@gmail.com wrote:
>>
>> > On Fri, Oct 23, 2020 at 03:53
On Tue, Oct 27, 2020 at 09:37:08AM -0400, Mathieu Desnoyers wrote:
>
> - On Oct 26, 2020, at 6:43 PM, Alexei Starovoitov
> alexei.starovoi...@gmail.com wrote:
>
> > On Fri, Oct 23, 2020 at 03:53:47PM -0400, Michael Jeanson wrote:
> >> -#define __DO_TRACE(tp, proto, args, cond, rcuidle)
On Tue, Oct 27, 2020 at 09:37:08AM -0400, Mathieu Desnoyers wrote:
>
> - On Oct 26, 2020, at 6:43 PM, Alexei Starovoitov
> alexei.starovoi...@gmail.com wrote:
>
> > On Fri, Oct 23, 2020 at 03:53:47PM -0400, Michael Jeanson wrote:
> >> -#define __DO_TRACE(tp, proto, args, cond, rcuidle)
- On Oct 26, 2020, at 6:43 PM, Alexei Starovoitov
alexei.starovoi...@gmail.com wrote:
> On Fri, Oct 23, 2020 at 03:53:47PM -0400, Michael Jeanson wrote:
>> -#define __DO_TRACE(tp, proto, args, cond, rcuidle) \
>> +#define __DO_TRACE(tp, proto, args, cond, rcuidle, tp_flags)
On Fri, Oct 23, 2020 at 03:53:47PM -0400, Michael Jeanson wrote:
> -#define __DO_TRACE(tp, proto, args, cond, rcuidle) \
> +#define __DO_TRACE(tp, proto, args, cond, rcuidle, tp_flags) \
> do {\
>
When invoked from system call enter/exit instrumentation, accessing
user-space data is a common use-case for tracers. However, tracepoints
currently disable preemption around iteration on the registered
tracepoint probes and invocation of the probe callbacks, which prevents
tracers from handling pa
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