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 <redacted>
Signed-off-by: Hannes Frederic Sowa <redacted>
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Acked-by: Eric Dumazet <edumazet@google.com>

(Note that the seqlock is only for 32bit arches)