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authorVlad Yasevich <vyasevic@redhat.com>2013-11-26 12:37:12 -0500
committerDavid S. Miller <davem@davemloft.net>2013-11-29 16:07:08 -0500
commit006da7b07bc4d3a7ffabad17cf639eec6849c9dc (patch)
tree05d54631c14c7b6d3c02acc0e6296145949c88cb /drivers/net/macvtap.c
parentdff345c5c85df3c5853491b007f6b1b578dc28a4 (diff)
downloadlinux-006da7b07bc4d3a7ffabad17cf639eec6849c9dc.tar.bz2
macvtap: Do not double-count received packets
Currently macvlan will count received packets after calling each vlans receive handler. Macvtap attempts to count the packet yet again when the user reads the packet from the tap socket. This code doesn't do this consistently either. Remove the counting from macvtap and let only macvlan count received packets. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvtap.c')
-rw-r--r--drivers/net/macvtap.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 0605da8e25f5..9093004f9b63 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -767,7 +767,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
const struct sk_buff *skb,
const struct iovec *iv, int len)
{
- struct macvlan_dev *vlan;
int ret;
int vnet_hdr_len = 0;
int vlan_offset = 0;
@@ -821,15 +820,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
copied += len;
done:
- rcu_read_lock();
- vlan = rcu_dereference(q->vlan);
- if (vlan) {
- preempt_disable();
- macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0);
- preempt_enable();
- }
- rcu_read_unlock();
-
return ret ? ret : copied;
}