Re: [PATCH] netfilter: nat: remove rcu_read_lock in __nf_nat_decode_session.

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Thank you for your review!

2017-04-07 4:51 GMT+09:00 Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>:
> On Tue, Mar 28, 2017 at 12:28:50AM +0900, Taehee Yoo wrote:
>> __nf_nat_decode_session is called from nf_nat_decode_session as decodefn.
>> before calling decodefn, it already set rcu_read_lock. so rcu_read_lock in
>> __nf_nat_decode_session can be removed.
>
> Could you have close look at the tree to confirm if we have more spots
> where rcu_read_lock is unnecessary?
>
> $ git grep rcu_read_lock net/netfilter/ | wc -l
> 158
> $ git grep rcu_read_lock
> net/ipv4/netfilter/ | wc -l
> 3
> $ git grep rcu_read_lock
> net/ipv6/netfilter/ | wc -l
> 2
> $ git grep rcu_read_lock
> net/bridge/netfilter/ | wc -l
>
> It's a fair good amount, it would take me around one hour probably to
> evaluate those here.
>
> If you can help us on verifying this, it would be simply great.
>
> Thanks!

okay, I confirm whole rcu_read_lock then I will resend a single patch
as soon as possible.
may be it needs a week.
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