netdev - Re: [PATCH net-next v2] net: remove delay at device dismantle

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Message-ID: <1344664487.5158.1.camel@edumazet-glaptop>
Date:	Sat, 11 Aug 2012 07:54:47 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>, Tom Herbert <therbert@...gle.com>,
	Mahesh Bandewar <maheshb@...gle.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH net-next v2] net: remove delay at device dismantle

On Fri, 2012-08-10 at 17:42 +0200, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> I noticed extra one second delay in device dismantle, tracked down to
> a call to dst_dev_event() while some call_rcu() are still in RCU queues.
> 
...
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Tom Herbert <therbert@...gle.com>
> Cc: Mahesh Bandewar <maheshb@...gle.com>
> Cc: "Eric W. Biederman" <ebiederm@...ssion.com>
> ---
> v2: NETDEV_UNREGISTER_FINAL called outside of rtnl lock
>     as its more risky, base this patch on net-next

Also I am leaving for a one week vacation with no access to the
Internet, so better hold this patch until my return ;)

Thanks


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