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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-09-20 00:12:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-20 10:08:58 -0700 |
| commit | 8990f468ae9010ab0af4be8f51bf7ab833a67202 (patch) | |
| tree | e84ad358ed67da6011b1e20f3d8039d1f9f07e4a /net/ipv4/ip_gre.c | |
| parent | 462fb2af9788a82a534f8184abfde31574e1cfa0 (diff) | |
| download | linux-8990f468ae9010ab0af4be8f51bf7ab833a67202.tar.gz linux-8990f468ae9010ab0af4be8f51bf7ab833a67202.tar.bz2 linux-8990f468ae9010ab0af4be8f51bf7ab833a67202.zip | |
net: rx_dropped accounting
Under load, netif_rx() can drop incoming packets but administrators dont
have a chance to spot which device needs some tuning (RPS activation for
example)
This patch adds rx_dropped accounting in vlans and tunnels.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_gre.c')
| -rw-r--r-- | net/ipv4/ip_gre.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index fc20e687e933..714b6a80361d 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -647,9 +647,11 @@ static int ipgre_rcv(struct sk_buff *skb) skb_reset_network_header(skb); ipgre_ecn_decapsulate(iph, skb); - netif_rx(skb); + if (netif_rx(skb) == NET_RX_DROP) + stats->rx_dropped++; + rcu_read_unlock(); - return(0); + return 0; } icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); |