linux-kernel - Re: [PATCH v13 3/3] trace,x86: Add irq vector tracepoints

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Message-ID: <1370379489.9844.7.camel@gandalf.local.home>
Date:	Tue, 04 Jun 2013 16:58:09 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Seiji Aguchi <seiji.aguchi@....com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...e.hu" <mingo@...e.hu>, "bp@...en8.de" <bp@...en8.de>,
	"linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
	"tony.luck@...el.com" <tony.luck@...el.com>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Tomoki Sekiyama <tomoki.sekiyama@....com>
Subject: Re: [PATCH v13 3/3] trace,x86: Add irq vector tracepoints

On Tue, 2013-06-04 at 20:20 +0000, Seiji Aguchi wrote:
> Steven,
> 
> > 
> > Hmm, maybe we can do it. Have two counters, a debug_idt_ctr and a
> > trace_idt_ctr, then have a function that basically does this:
> > 
> > 	if (this_cpu_read(debug_idt_ctr))
> 
> I think we can use "debug_stack_use_ctr"  for the checking.
> Is it correct?
> Or, do I need to introduce a new debug_idt_ctr?
> 

No, it's the same variable. I was thinking we should rename it too, as
debug_stack_use_ctr, doesn't really describe what is happening anymore.

-- Steve


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