netdev - Re: [PATCH] Ipv6: Delete rcu_read

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Message-ID: <CAAM7YAmwXyORpFWhthX4iSEkBp7OANnZ8tHruEyN62Z3mnOdLw@mail.gmail.com>
Date:	Thu, 29 Sep 2011 16:52:38 +0800
From:	"Yan, Zheng " <yanzheng@...n.com>
To:	Rongqing Li <rongqing.li@...driver.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] Ipv6: Delete rcu_read_lock

On Thu, Sep 29, 2011 at 4:25 PM, Rongqing Li <rongqing.li@...driver.com> wrote:
> On 09/29/2011 04:16 PM, Yan, Zheng wrote:
>>
>> I think the rcu_read_lock protects in6_dev->nd_parms.
>>
> It can not protect in6_dev->nd_parms.
>
> rcu_read_lock protects the data which is accessed by rcu_XXX,
>

I'm confused, why does neigh_parms_release() use call_rcu() to release nd_parms.
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