net: sched: RCU cls_tcindex

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

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John Fastabend 2014-09-12 20:08:20 -07:00 • committed by David S. Miller

parent 1109c00547

commit 331b72922c

2 changed files with 164 additions and 94 deletions

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include/linux/rtnetlink.h

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