net: sched: RCU cls_tcindex
authorJohn Fastabend <[email protected]>
Sat, 13 Sep 2014 03:08:20 +0000 (20:08 -0700)
committerDavid S. Miller <[email protected]>
Sat, 13 Sep 2014 16:30:26 +0000 (12:30 -0400)
commit331b72922c5f58d48fd5500acadc91777cc31970
tree03f16a1e47e4b4c01dca29868a9b13d86634aa82
parent1109c00547fc66df45b9ff923544be4c1e1bec13
net: sched: RCU cls_tcindex

Make cls_tcindex RCU safe.

This patch addds a new RCU routine rcu_dereference_bh_rtnl() to check
caller either holds the rcu read lock or RTNL. This is needed to
handle the case where tcindex_lookup() is being called in both cases.

Signed-off-by: John Fastabend <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
include/linux/rtnetlink.h
net/sched/cls_tcindex.c