Re: [PATCH v9 2/3] trace,x86: add x86 irq vector tracepoints

[Steven Rostedt]

On Mon, 2013-02-18 at 20:39 -0800, H. Peter Anvin wrote:

> > static void switch_to_trace_idt(void *arg)
> > {
> >      load_idt(&trace_idt_descr);
> > }
> > 
> > static void restore_original_idt(void *arg)
> > {
> >      load_idt(this_cpu_ptr(&idt_descr));
> > }
> > 
> 
> Yes.  If there needs to be handshaking about whose IDT is currently
> installed I'm much happier if that handshake is done explicitly, rather
> than as a save/restore function which will break when we have to add
> another one which for whatever reason isn't nesting.

Agreed.

Seiji, can you make the update?

Thanks,

-- Steve


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