linux-kernel - Re: [PATCH RFC tip/core/rcu 17/28] rcu: Make srcu_read_lock_held() call common lockdep-enabled function

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Message-ID: <20111103133018.GZ2287@linux.vnet.ibm.com>
Date:	Thu, 3 Nov 2011 06:30:18 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Josh Triplett <josh@...htriplett.org>,
	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com, patches@...aro.org
Subject: Re: [PATCH RFC tip/core/rcu 17/28] rcu: Make srcu_read_lock_held()
 call common lockdep-enabled function

On Thu, Nov 03, 2011 at 09:19:26AM -0400, Steven Rostedt wrote:
> On Thu, 2011-11-03 at 12:14 +0100, Frederic Weisbecker wrote:
> > On Wed, Nov 02, 2011 at 08:48:54PM -0700, Josh Triplett wrote:
> > > On Wed, Nov 02, 2011 at 01:30:38PM -0700, Paul E. McKenney wrote:
> > > > From: Frederic Weisbecker <fweisbec@...il.com>
> > > > 
> > > > A common debug_lockdep_rcu_enabled() function is used to check whether
> > > > RCU lockdep splats should be reported, but srcu_read_lock() does not
> > > > use it.  This commit therefore brings srcu_read_lock_held() up to date.
> > > > 
> > > > Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> > > > Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> > > > Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> > > 
> > > Just how signed off does this patch need to be? ;)
> > 
> > Dunno but I feel uncomfortable now with that strange feeling I'm walking
> > on the street with two Paul holding my hand on each side.
> 
> We already established the split Paul, but what is really scarey, is
> that the Pauls on both sides of you, are the evil Pauls. ;)

Well, I -could- make the first one by my linaro.org address and the
second one be my linux.vnet.ibm.com address...  ;-)

							Thanx, Paul

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