linux-kernel - Re: [PATCH 1/2] tuntap: forbid calling TUNSETIFF when detached

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Message-ID: <50F0CB00.30100@redhat.com>
Date:	Sat, 12 Jan 2013 10:31:28 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	davem@...emloft.net, mst@...hat.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Stefan Hajnoczi <stefanha@...hat.com>
Subject: Re: [PATCH 1/2] tuntap: forbid calling TUNSETIFF when detached

On 01/11/2013 10:55 PM, Eric Dumazet wrote:
> On Fri, 2013-01-11 at 16:50 +0800, Jason Wang wrote:
>
>>  
>> +	if (rcu_dereference_protected(tfile->detached, lockdep_rtnl_is_held()))
>> +		return -EINVAL;
>> +
> Thats an open coded rtnl_dereference()
>
> (please cleanup the whole tun.c file)
>

Sure.
>
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