From 8c0713a57482ebfadef197c856a38af3a55444c6 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 16 Nov 2011 11:55:54 +0000 Subject: team: Do not hold rcu_read_lock when running netlink cmds Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/team/team.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers/net/team') diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 60672bb..e5390c7 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1043,8 +1043,7 @@ err_msg_put: /* * Netlink cmd functions should be locked by following two functions. - * To ensure team_uninit would not be called in between, hold rcu_read_lock - * all the time. + * Since dev gets held here, that ensures dev won't disappear in between. */ static struct team *team_nl_team_get(struct genl_info *info) { @@ -1057,10 +1056,10 @@ static struct team *team_nl_team_get(struct genl_info *info) return NULL; ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); - rcu_read_lock(); - dev = dev_get_by_index_rcu(net, ifindex); + dev = dev_get_by_index(net, ifindex); if (!dev || dev->netdev_ops != &team_netdev_ops) { - rcu_read_unlock(); + if (dev) + dev_put(dev); return NULL; } @@ -1072,7 +1071,7 @@ static struct team *team_nl_team_get(struct genl_info *info) static void team_nl_team_put(struct team *team) { spin_unlock(&team->lock); - rcu_read_unlock(); + dev_put(team->dev); } static int team_nl_send_generic(struct genl_info *info, struct team *team, -- cgit v1.1