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Commit e576b9ef authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller
Browse files

s390: use RCU to walk list of network devices 



This is similar to other cases where for_each_netdev_rcu
can be used when gathering information.

By inspection, don't have platform or cross-build environment
to validate.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f1e9016d

arch/s390/appldata/appldata_net_sum.c

+5 −3
Original line number Diff line number Diff line
@@ -83,8 +83,9 @@ static void appldata_get_net_sum_data(void *data) 
	rx_dropped = 0;

	tx_dropped = 0;

	collisions = 0;

	read_lock(&dev_base_lock);

	for_each_netdev(&init_net, dev) {



	rcu_read_lock();

	for_each_netdev_rcu(&init_net, dev) {

		const struct net_device_stats *stats = dev_get_stats(dev);



		rx_packets += stats->rx_packets;
@@ -98,7 +99,8 @@ static void appldata_get_net_sum_data(void *data) 
		collisions += stats->collisions;

		i++;

	}

	read_unlock(&dev_base_lock);

	rcu_read_unlock();



	net_data->nr_interfaces = i;

	net_data->rx_packets = rx_packets;

	net_data->tx_packets = tx_packets;