Re: [PATCH v2] inet: fix possible seqlock deadlocks

[David Miller]

From: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 28 Nov 2013 19:09:14 +0100

> On Thu, Nov 28, 2013 at 09:51:22AM -0800, Eric Dumazet wrote:
>> From: Eric Dumazet <edumazet@xxxxxxxxxx>
>> 
>> In commit c9e9042994d3 ("ipv4: fix possible seqlock deadlock") I left
>> another places where IP_INC_STATS_BH() were improperly used.
>> 
>> udp_sendmsg(), ping_v4_sendmsg() and tcp_v4_connect() are called from
>> process context, not from softirq context.
>> 
>> This was detected by lockdep seqlock support.
>> 
>> Reported-by: jongman heo <jongman.heo@xxxxxxxxxxx>
>> Fixes: 584bdf8cbdf6 ("[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP")
>> Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
>> Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
>> Cc: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
> 
> Just got home after getting distracted with other things today and the work is
> already done. Thanks, Eric! ;)
> 
> Exactly the spots I noticed this morning, so
> 
> Acked-by: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>

Applied and queued up for -stable.
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