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authorstephen hemminger <shemminger@vyatta.com>2009-11-10 07:54:52 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-10 22:26:31 -0800
commite576b9ef41c2c1b13e0c123b6e9d0589723c68bf (patch)
treecf0873d69e78d633e1fdadef4b66f61e2341b993 /arch/s390/appldata
parentf1e9016da6d0f16551d90085758ae45d26826118 (diff)
downloadlinux-linaro-android-e576b9ef41c2c1b13e0c123b6e9d0589723c68bf.tar.gz
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: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/s390/appldata')
-rw-r--r--arch/s390/appldata/appldata_net_sum.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index fa741f84c5b..4ce7fa95880 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -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;