Re: systemtap broken by removal of register_timer_hook

[Frederic Weisbecker <fweisbec@gmail.com>]

2013/4/3 Frank Ch. Eigler <fche@redhat.com>:
> Frederic Weisbecker <fweisbec@gmail.com> writes:
>
>> [...]
>> Sometimes I don't mind keeping around code in the kernel for out of
>> tree users, depending on the case. But in this specific matter we have
>> more standard ways to do this kind of hook: kprobes, static
>> tracepoints. A tracepoint on the timer tick would be useful BTW, and
>> you could reuse it.
>
> Thanks for noticing!  IMO kprobes would be too heavyweight for this.
> A new static tracepoint would be fine, especially if it passes the
> same pt_regs* pointer as the former hook did.

Sounds good, would you like to propose a version? We are also
interested in a timer tick event tracepoint for dynticks debugging.

Thanks!