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authorstephen hemminger <shemminger@vyatta.com>2009-11-10 07:54:48 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-10 22:26:30 -0800
commit9e067597ee0e51a07bc158e9e2703ca676920e8b (patch)
tree07436378544524a78d834aa664819ce64f969e19 /net/8021q/vlanproc.c
parent254245d23396aca1f9100d500163d7bd6019ab6f (diff)
vlan: eliminate use of dev_base_lock
Do not need to use read_lock(&dev_base_lock), use RCU instead. 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 'net/8021q/vlanproc.c')
-rw-r--r--net/8021q/vlanproc.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index 6262c335f3c2..9ec1f057c03a 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -201,18 +201,17 @@ int vlan_proc_rem_dev(struct net_device *vlandev)
/* start read of /proc/net/vlan/config */
static void *vlan_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(dev_base_lock)
+ __acquires(rcu)
{
struct net_device *dev;
struct net *net = seq_file_net(seq);
loff_t i = 1;
- read_lock(&dev_base_lock);
-
+ rcu_read_lock();
if (*pos == 0)
return SEQ_START_TOKEN;
- for_each_netdev(net, dev) {
+ for_each_netdev_rcu(net, dev) {
if (!is_vlan_dev(dev))
continue;
@@ -234,7 +233,7 @@ static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
if (v == SEQ_START_TOKEN)
dev = net_device_entry(&net->dev_base_head);
- for_each_netdev_continue(net, dev) {
+ for_each_netdev_continue_rcu(net, dev) {
if (!is_vlan_dev(dev))
continue;
@@ -245,9 +244,9 @@ static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
}
static void vlan_seq_stop(struct seq_file *seq, void *v)
- __releases(dev_base_lock)
+ __releases(rcu)
{
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
static int vlan_seq_show(struct seq_file *seq, void *v)

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