Message-ID: <1416760785.17888.18.camel@edumazet-glaptop2.roam.corp.google.com>
Subject: Re: [PATCH tip/core/rcu 3/9] drivers/md: Use rcu_dereference() for
 accessing rcu pointer
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Pranith Kumar <bobby.prani@gmail.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@kernel.org>,
        Lai Jiangshan <laijs@cn.fujitsu.com>,
        Dipankar Sarma <dipankar@in.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Josh Triplett <josh@joshtriplett.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        David Howells <dhowells@redhat.com>,
        Eric Dumazet <edumazet@google.com>, dvhart@linux.intel.com,
        =?ISO-8859-1?Q?Fr=E9d=E9ric?= Weisbecker <fweisbec@gmail.com>,
        Oleg Nesterov <oleg@redhat.com>
Date: Sun, 23 Nov 2014 08:39:45 -0800
In-Reply-To: <CAJhHMCCE_p+xTibLZwoS5OqW--NO_uEVsW6tfN6LcgZGBquBTQ@mail.gmail.com>
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	 <20141121145817.GA17710@node.dhcp.inet.fi>
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On Sun, 2014-11-23 at 07:21 -0500, Pranith Kumar wrote:

> I am not sure we should be taking rcu_read_lock() there as I am not
> sure how long that critical section might last. Can someone who is
> more familiar with the code take a look?
> 
> I will try to look for a solution too in the mean time.

I am sending a fix.


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