tree 8ea1054b59c4abe211ffff0b81f34589b0089f22
parent 61881cfb5ad80c1d0a46ca6d08b7e271892b2ff6
author Hannes Frederic Sowa <hannes@stressinduktion.org> 1459869015 +0200
committer David S. Miller <davem@davemloft.net> 1460061854 -0400

net: introduce lockdep_is_held and update various places to use it

The socket is either locked if we hold the slock spin_lock for
lock_sock_fast and unlock_sock_fast or we own the lock (sk_lock.owned
!= 0). Check for this and at the same time improve that the current
thread/cpu is really holding the lock.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>