Messages in this thread Patch in this message |  | | | From | Jesper Dangaard Brouer <> | | Subject | [PATCH 1/5] 8021q: Vlan driver should use rcu_barrier() on unload instead of syncronize_net() | | Date | Mon, 08 Jun 2009 15:11:28 +0200 |
The VLAN 8021q driver needs to call rcu_barrier() when unloading the module, instead of syncronize_net(). This is needed to make sure that outstanding call_rcu() callbacks have completed, before the callback function code is removed on module unload.
Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> --- net/8021q/vlan.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 714e1c3..fe64908 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -758,7 +758,7 @@ static void __exit vlan_cleanup_module(void) BUG_ON(!hlist_empty(&vlan_group_hash[i])); unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops); - synchronize_net(); + rcu_barrier(); /* Wait for completion of call_rcu()'s */ vlan_gvrp_uninit(); }
|  |