netdev - Re: [RFC PATCH] llc: convert the socket list to RCU locking (was Re: [PATCH 3/4] llc: use a device based hash table to speed up multicast delivery)

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Date:	Wed, 09 Dec 2009 21:52:50 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Octavian Purdila <opurdila@...acom.com>
CC:	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Subject: Re: [RFC PATCH] llc: convert the socket list to RCU locking (was
 Re: [PATCH 3/4] llc: use a device based hash table to speed up multicast
 delivery)

Octavian Purdila wrote, On 12/08/2009 10:10 PM:

...
> @@ -652,10 +679,10 @@ static int llc_find_offset(int state, int ev_type)
>  void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk)
>  {
>  	llc_sap_hold(sap);
> -	write_lock_bh(&sap->sk_list.lock);
> +	spin_lock_bh(&sap->sk_lock);
>  	llc_sk(sk)->sap = sap;
> -	sk_add_node(sk, &sap->sk_list.list);
> -	write_unlock_bh(&sap->sk_list.lock);
> +	sk_nulls_add_node_rcu(sk, &sap->sk_list);
> +	spin_lock_bh(&sap->sk_lock);
------->^^^^^^^^^^


Jarek P.
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