netdev - Re: [PATCH net-next-2.6] can: convert protocol handling to RCU

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Date:	Tue, 05 Apr 2011 19:52:35 +0200
From:	Oliver Hartkopp <socketcan@...tkopp.net>
To:	David Miller <davem@...emloft.net>
CC:	Linux Netdev List <netdev@...r.kernel.org>,
	Kurt Van Dijck <kurt.van.dijck@....be>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Urs Thuermann <urs@...ogud.escape.de>
Subject: Re: [PATCH net-next-2.6] can: convert protocol handling to RCU

On 04.04.2011 22:21, Oliver Hartkopp wrote:
> This patch removes spin_locks at CAN socket creation time by using RCU.
> 


> @@ -143,22 +159,18 @@ static int can_create(struct net *net, struct socket *sock, int protocol,
>  		if (err && printk_ratelimit())
>  			printk(KERN_ERR "can: request_module "
>  			       "(can-proto-%d) failed.\n", protocol);
> +		else
> +			cp = can_try_module_get(protocol);
>  	}

Hm, i just discovered a tiny issue here as putting can_try_module_get() into
the 'else' path is not needed.

Will send a V2 in a few minutes.


Regards,
Oliver
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