linux-kernel - Re: [PATCH -next] ashmem: Fix ashmem

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Message-ID: <20130502203935.GA25567@kroah.com>
Date:	Thu, 2 May 2013 13:39:35 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Robert Love <rlove@...gle.com>, devel <devel@...verdev.osuosl.org>,
	Shankar Brahadeeswaran <shankoo77@...il.com>,
	Bjorn Bringert <bringert@...gle.com>,
	Hugh Dickins <hughd@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-next <linux-next@...r.kernel.org>,
	Anjana V Kumar <anjanavk12@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH -next] ashmem: Fix ashmem_shrink deadlock.

On Thu, May 02, 2013 at 11:22:18AM -0700, David Rientjes wrote:
> On Wed, 1 May 2013, David Rientjes wrote:
> 
> > > Don't acquire ashmem_mutex in ashmem_shrink if we've somehow recursed into the
> > > shrinker code from within ashmem. Just bail out, avoiding a deadlock. This is
> > > fine, as ashmem cache pruning is advisory anyhow.
> > > 
> > > Signed-off-by: Robert Love <rlove@...gle.com>
> > 
> > Any reason not to send this to stable@...r.kernel.org if it fixes an 
> > observable deadlock?  (It's annotated to be applied to linux-next, but I 
> > don't see any differences between it and Linus's tree.)
> > 
> 
> This was sent separately to stable@...r.kernel.org before being merged 
> into Linus's tree .  Greg, could this be queued up for 3.10 with a cc to 
> stable@...r.kernel.org?

Yes, I'll handle all of this properly, thanks.

greg k-h
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