netdev - [PATCH net-next 0/2] ipv6: addrconf: make two more doit functions not use rtnl mutex

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Date:   Wed, 11 Oct 2017 10:27:59 +0200
From:   Florian Westphal <fw@...len.de>
To:     <netdev@...r.kernel.org>
Subject: [PATCH net-next 0/2] ipv6: addrconf: make two more doit functions not use rtnl mutex

ipv6 RTM_GETNETCONF and RTM_GETADDR don't seem to require strict
serialization via rtnl mutex, so switch both to DOIT_UNLOCKED and increment
device reference counts instead.

Alternative would be to use rcu which would need some minor
code re-arrangements (we can't use GFP_ATOMIC for buffer allocation in that
case).

 addrconf.c |   38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)