Commit 4ead9c96 authored by Ursula Braun's avatar Ursula Braun Committed by David S. Miller
Browse files

net/smc: use rcu_barrier() on module unload 



Add rcu_barrier() to make sure no RCU readers or callbacks are
pending when the module is unloaded.

Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: default avatarKarsten Graul <kgraul@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a33a803c

net/smc/af_smc.c

+2 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/in.h>

#include <linux/sched/signal.h>

#include <linux/if_vlan.h>

#include <linux/rcupdate_wait.h>



#include <net/sock.h>

#include <net/tcp.h>
@@ -2111,6 +2112,7 @@ static void __exit smc_exit(void) 
	proto_unregister(&smc_proto);

	smc_pnet_exit();

	unregister_pernet_subsys(&smc_net_ops);

	rcu_barrier();

}



module_init(smc_init);