From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yong Zhang <yong.zhang@windriver.com>
Subject: Re: [PATCH] lockdep: Add nr_save_trace_invocations counter
Date: Fri, 23 Apr 2010 16:03:35 +0800
Message-ID: <20100423080335.GC21328@windriver.com>
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Reply-To: Yong Zhang <yong.zhang@windriver.com>
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Cc: John Kacur <jkacur@gmail.com>, LKML <linux-kernel@vger.kernel.org>,
	linux-rt-users <linux-rt-users@vger.kernel.org>,
	Sven-Thorsten Dietrich <thebigcorporation@gmail.com>,
	Clark Williams <williams@redhat.com>,
	"Luis Claudio R. Goncalves" <lgoncalv@redhat.com>,
	Ingo Molnar <mingo@elte.hu>,
	Thomas Gleixner <tglx@linutronix.de>,
	Gregory Haskins <ghaskins@novell.com>
To: Peter Zijlstra <peterz@infradead.org>
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On Fri, Apr 23, 2010 at 08:52:05AM +0200, Peter Zijlstra wrote:
> On Fri, 2010-04-23 at 10:58 +0800, Yong Zhang wrote:
> > 
> > > +unsigned long nr_save_trace_invocations_type[LOCK_USAGE_STATES];
> > 
> > And each item in this array will equal to nr_hardirq_[un]safe,
> > nr_softirq_[un]safe and such things under lockdep_stats_show(). Right?
> 
> Well, the stats for RECLAIM_FS as missing, so at the very least we need
> to re-write lockdep_stats_show() to use the lockdep_states.h magic.

Yeah, it's a good start point and will keep thing unifying in the future.

Thanks,
Yong