Hannes Frederic Sowa 7f88c6b23a ipv6: fix possible seqlock deadlock in ip6_finish_output2 ...

IPv6 stats are 64 bits and thus are protected with a seqlock. By not
disabling bottom-half we could deadlock here if we don't disable bh and
a softirq reentrantly updates the same mib.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2013-11-30 12:48:13 -05:00

40 KiB

Raw Blame History

View Raw