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

[Steven Rostedt]

On Sat, 16 May 2020 01:45:50 +0200
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.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

-- Steve