netdev - Re: [PATCH net] vxlan: Use RCU apis to access sk_user

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Message-ID: <CALnjE+qvkix37P58Mz86DsaJayFEoEfvf9YXYFnkryOc3Ro5pw@mail.gmail.com>
Date:	Tue, 24 Sep 2013 09:27:41 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	netdev <netdev@...r.kernel.org>, Jesse Gross <jesse@...ira.com>
Subject: Re: [PATCH net] vxlan: Use RCU apis to access sk_user_data.

On Tue, Sep 24, 2013 at 9:20 AM, Stephen Hemminger
<stephen@...workplumber.org> wrote:
> On Mon, 23 Sep 2013 22:28:21 -0700
> Pravin B Shelar <pshelar@...ira.com> wrote:
>
>>
>> +#define sk_user_data_rcu(sk) ((*((void __rcu **)&(sk)->sk_user_data)))
>
> I don't like the macro, is it just to keep sparse happy?
yes, it is for sparse.
> The name also implies that rcu_dereference() is built in.
ok, I can right separate API for rcu-set and rcu-deref.
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