Messages in this thread | | | Subject | Re: [PATCH] ipv6: fix possible seqlock deadlock in ip6_finish_output2 | From | Eric Dumazet <> | Date | Sat, 30 Nov 2013 08:45:55 -0800 |
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On Fri, 2013-11-29 at 06:39 +0100, Hannes Frederic Sowa wrote: > 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>
(Note that the seqlock is only for 32bit arches)
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