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

[David Miller <davem@xxxxxxxxxxxxx>]

From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Date: Sat, 11 Aug 2012 07:54:47 +0200

> On Fri, 2012-08-10 at 17:42 +0200, Eric Dumazet wrote:
>> From: Eric Dumazet <edumazet@xxxxxxxxxx>
>> 
>> 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@xxxxxxxxxx>
>> Cc: Tom Herbert <therbert@xxxxxxxxxx>
>> Cc: Mahesh Bandewar <maheshb@xxxxxxxxxx>
>> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
>> ---
>> 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 ;)

Ok :)
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