Re: [patch V6 03/37] nmi, tracing: Provide nmi_enter/exit_notrace()

[Andy Lutomirski]

On Fri, May 15, 2020 at 5:10 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
>
> To fully isolate #DB and #BP from instrumentable code it's necessary to
> avoid invoking the hardware latency tracer on nmi_enter/exit().
>
> Provide nmi_enter/exit() variants which are not invoking the hardware
> latency tracer. That allows to put calls explicitely into the call sites
> outside of the kprobe handling.


Acked-by: Andy Lutomirski <luto@xxxxxxxxxx>