linux-kernel - Re: [PATCH tip/core/rcu 8/9] idr: apply lockdep-based diagnostics to rcu

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Message-ID: <20100118233604.GE29076@feather>
Date:	Mon, 18 Jan 2010 15:36:04 -0800
From:	Josh Triplett <josh@...htriplett.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com
Subject: Re: [PATCH tip/core/rcu 8/9] idr: apply lockdep-based diagnostics
 to rcu_dereference() uses

On Thu, Jan 14, 2010 at 05:02:45PM -0800, Paul E. McKenney wrote:
> From: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> 
> Because idr can be used with any of a number of locks or with any
> flavor of RCU, just disable the lockdep-based diagnostics.  If idr
> needs diagnostics, the check expression will need to be passed into
> the relevant idr primitives as an additional argument.
> 
> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>

The subject line of this patch seems wrong.  Like the preceding patches
for radix tree and list operations, this *disables* the checking by
using _raw.

- Josh Triplett
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