From 283f2fe87e980d8af5ad8aa63751e7e3258ee05a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Mar 2010 13:37:40 +0000 Subject: [PATCH] net: speedup netdev_set_master() We currently force a synchronize_net() in netdev_set_master() This seems necessary only when a slave had a master and we dismantle it. In the other case ("ifenslave bond0 ethO"), we dont need this long delay. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/dev.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index fe2a754..2d01f18 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3757,11 +3757,10 @@ int netdev_set_master(struct net_device *slave, struct net_device *master) slave->master = master; - synchronize_net(); - - if (old) + if (old) { + synchronize_net(); dev_put(old); - + } if (master) slave->flags |= IFF_SLAVE; else -- 2.7.4