decnet: RCU conversion and get rid of dev_base_lock
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 29 Oct 2010 03:09:24 +0000 (03:09 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 8 Nov 2010 21:50:08 +0000 (13:50 -0800)
commitfc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0
treed45160f52eea37d4e5149d511c3c577bef253801
parente4a7b93bd5d84e1e79917d024d17d745d190fc9a
decnet: RCU conversion and get rid of dev_base_lock

While tracking dev_base_lock users, I found decnet used it in
dnet_select_source(), but for a wrong purpose:

Writers only hold RTNL, not dev_base_lock, so readers must use RCU if
they cannot use RTNL.

Adds an rcu_head in struct dn_ifaddr and handle proper RCU management.

Adds __rcu annotation in dn_route as well.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/netdevice.h
include/net/dn_dev.h
include/net/dst.h
net/decnet/af_decnet.c
net/decnet/dn_dev.c
net/decnet/dn_fib.c
net/decnet/dn_neigh.c
net/decnet/dn_route.c