ip6mr: ip6mr_sk_done() can exit early in common cases

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In many cases, ip6mr_sk_done() is called while no ipmr socket
has been registered.

This removes 4 rtnl acquisitions per netns dismantle,
with following callers:

igmp6_net_exit(), tcpv6_net_exit(), ndisc_net_exit()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Eric Dumazet 2022-02-04 12:15:46 -08:00 • committed by David S. Miller

parent 145c7a7938

commit f2f2325ec7

1 changed files with 3 additions and 0 deletions

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net/ipv6/ip6mr.c

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