Re: [PATCH] Ipv6: Delete rcu_read_lock

On 09/29/2011 04:52 PM, Yan, Zheng wrote:

On Thu, Sep 29, 2011 at 4:25 PM, Rongqing Li[off-list ref]  wrote:

quoted

On 09/29/2011 04:16 PM, Yan, Zheng wrote:

quoted

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