linux-kernel - Re: [PATCH] kernel/locking/locktorture: fix deadlock in 'rw_lock

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Message-ID: <20150307013049.GJ5236@linux.vnet.ibm.com>
Date:	Fri, 6 Mar 2015 17:30:49 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Davidlohr Bueso <dave@...olabs.net>
Cc:	Alexey Kodanev <alexey.kodanev@...cle.com>, josh@...htriplett.org,
	linux-kernel@...r.kernel.org, vasily.isaenko@...cle.com
Subject: Re: [PATCH] kernel/locking/locktorture: fix deadlock in
 'rw_lock_irq' type

On Fri, Mar 06, 2015 at 05:03:00PM -0800, Davidlohr Bueso wrote:
> On Fri, 2015-03-06 at 16:37 -0800, Paul E. McKenney wrote:
> > On Sat, Mar 07, 2015 at 03:06:53AM +0300, Alexey Kodanev wrote:
> > > torture_rwlock_read_unlock_irq() must use read_unlock_irqrestore()
> > > instead of write_unlock_irqrestore().
> > > 
> > > Use read_unlock_irqrestore() instead of write_unlock_irqrestore().
> > > 
> > > Signed-off-by: Alexey Kodanev <alexey.kodanev@...cle.com>
> > 
> > Good catch!  If Davidlohr has no objections, I will queue this one.
> 
> Dear me, yes that looks completely borken. Thanks for the fix.

Queued for v4.2.  (If this is more urgent than that, please let me know.)

							Thanx, Paul

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