Re: [RFC PATCH V2] tracing/kprobe: Wait for disabling all runningkprobe handlers

[Oleg Nesterov]

On 07/09, Masami Hiramatsu wrote:
>
> Wait for disabling all running kprobe handlers when a kprobe
> event is disabled, since the caller, trace_remove_event_call()
> supposes that a removing event is disabled completely by
> disabling the event.
> With this change, ftrace can ensure that there is no running
> event handlers after disabling it.
>
> Changes in V2:
>  - Comment (in code) for clarify why we need to wait there.
>
> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>

Agreed.

We need this change in any case, whatever we do in trace/trace_events.c
and in unregister_trace_probe().

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/