netdev - Re: [PATCH net-next] inet_diag: Remove _bh suffix in inet_diag_dump

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Date:	Thu, 18 Jun 2015 23:42:08 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Hiroaki Shimoda <shimoda.hiroaki@...il.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] inet_diag: Remove _bh suffix in
 inet_diag_dump_reqs().

On Thu, 2015-06-18 at 20:40 +0900, Hiroaki Shimoda wrote:
> inet_diag_dump_reqs() is called from inet_diag_dump_icsk() with BH
> disabled. So no need to disable BH in inet_diag_dump_reqs().
> 
> Signed-off-by: Hiroaki Shimoda <shimoda.hiroaki@...il.com>
> ---
>  net/ipv4/inet_diag.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
> index 21985d8d41e7..4ca789ba63cb 100644
> --- a/net/ipv4/inet_diag.c
> +++ b/net/ipv4/inet_diag.c
> @@ -746,7 +746,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
>  
>  	entry.family = sk->sk_family;
>  
> -	spin_lock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
> +	spin_lock(&icsk->icsk_accept_queue.syn_wait_lock);
>  
>  	lopt = icsk->icsk_accept_queue.listen_opt;
>  	if (!lopt || !listen_sock_qlen(lopt))
> @@ -794,7 +794,7 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
>  	}
>  
>  out:
> -	spin_unlock_bh(&icsk->icsk_accept_queue.syn_wait_lock);
> +	spin_unlock(&icsk->icsk_accept_queue.syn_wait_lock);
>  
>  	return err;
>  }

Sure, although this will soon be removed completely when SYN_RECV
sockets will be stored in regular ehash table.

Thanks


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