linux-kernel - Re: [PATCH tip/core/rcu 14/19] rcu: Extend expedited funnel locking to rcu

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Message-ID: <56007F02.2070807@oracle.com>
Date:	Mon, 21 Sep 2015 18:04:50 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	paulmck@...ux.vnet.ibm.com
CC:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	jiangshanlai@...il.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com
Subject: Re: [PATCH tip/core/rcu 14/19] rcu: Extend expedited funnel locking
 to rcu_data structure

On 09/21/2015 12:12 AM, Paul E. McKenney wrote:
> Hmmm...  I created rdp->exp_funnel_mutex, but failed to give RCU-sched
> its own lock class.  Does the following untested patch fix things for you?

Haven't reproduced yet, but it didn't happen that often before - let's give it
another day or two of testing?


Thanks,
Sasha
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