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powerpc/mpc5200: trivial printk-fixes in mpc52xx_common
[firefly-linux-kernel-4.4.55.git]
/
net
/
core
/
net_namespace.c
diff --git
a/net/core/net_namespace.c
b/net/core/net_namespace.c
index 72b4c184dd84a4d583a20ef0ed5dbd06618f5757..7c52fe277b62441966f758b25fad9acef18a10d0 100644
(file)
--- a/
net/core/net_namespace.c
+++ b/
net/core/net_namespace.c
@@
-140,6
+140,9
@@
static void cleanup_net(struct work_struct *work)
struct pernet_operations *ops;
struct net *net;
+ /* Be very certain incoming network packets will not find us */
+ rcu_barrier();
+
net = container_of(work, struct net, work);
mutex_lock(&net_mutex);