From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH ] workqueue: add args to workqueue lockdep name
Date: Fri, 14 Feb 2014 09:06:13 -0500
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To: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Tommi Rantala <tt.rantala@gmail.com>, Ingo Molnar <mingo@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Dave Jones <davej@redhat.com>, trinity@vger.kernel.org

On Fri, Feb 14, 2014 at 10:52:57AM +0800, Li Zhong wrote:
> Tommi noticed a 'funny' lock class name: "%s#5" from a lock acquired in
> process_one_work().
> 
> Maybe #fmt plus #args could be used as the lock_name to give some more
> information for some fmt string like the above. 
> 
> __builtin_constant_p() check is removed (as there seems no good way to
> check all the variables in args list). However, by removing the check,
> it only adds two additional "s for those constants.
> 
> Some lockdep name examples printed out after the change:
> 
> lockdep name                    wq->name
> 
> "events_long"                   events_long
> "%s"("khelper")                 khelper
> "xfs-data/%s"mp->m_fsname       xfs-data/dm-3
> 
> Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>

Applied to wq/for-3.14-fixes.

Thanks.

-- 
tejun