netdev - Re: [PATCH net] ipv6: move DAD and addrconf

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Message-ID: <20140325142004.7507d310@samsung-9>
Date:	Tue, 25 Mar 2014 14:20:04 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net] ipv6: move DAD and addrconf_verify processing to
 workqueue

On Tue, 25 Mar 2014 09:03:01 +0100
Hannes Frederic Sowa <hannes@...essinduktion.org> wrote:

>  
> -static void addrconf_verify(unsigned long foo)
> +static void addrconf_verify_rtnl(void)
>  {
>  	unsigned long now, next, next_sec, next_sched;
>  	struct inet6_ifaddr *ifp;
>  	int i;
>  
> +	ASSERT_RTNL();
> +
>  	rcu_read_lock_bh();
>  	spin_lock(&addrconf_verify_lock);

Since RTNL is now held in addrconf_verify(), is addrconf_verify_lock is not needed.

Since RTNL is held, rcu is not needed either.

Also, I would skip the wrapper (addrconf_verify_rtnl) and just
put it all in addrconf_verify_work

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