From: Rongqing Li <rongqing.li@windriver.com>
To: "Yan, Zheng " <yanzheng@21cn.com>
Cc: <netdev@vger.kernel.org>
Subject: Re: [PATCH] Ipv6: Delete rcu_read_lock
Date: Thu, 29 Sep 2011 17:10:31 +0800 [thread overview]
Message-ID: <4E843607.6010306@windriver.com> (raw)
In-Reply-To: <CAAM7YAmwXyORpFWhthX4iSEkBp7OANnZ8tHruEyN62Z3mnOdLw@mail.gmail.com>
On 09/29/2011 04:52 PM, Yan, Zheng wrote:
> On Thu, Sep 29, 2011 at 4:25 PM, Rongqing Li<rongqing.li@windriver.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.
>
Same as idev, there is a reference on struct neigh_parms
which protects them
-Roy
next prev parent reply other threads:[~2011-09-29 9:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-29 7:46 [PATCH] Ipv6: Delete rcu_read_lock rongqing.li
2011-09-29 8:16 ` Yan, Zheng
2011-09-29 8:25 ` Rongqing Li
2011-09-29 8:52 ` Yan, Zheng
2011-09-29 9:10 ` Rongqing Li [this message]
2011-09-29 8:44 ` Eric Dumazet
2011-09-29 8:49 ` Rongqing Li
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