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| author | Eric Dumazet <edumazet@google.com> | 2012-06-27 00:23:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-27 15:40:57 -0700 |
| commit | 22911fc581f6a241e2897a7a8603e97344a6ec82 (patch) | |
| tree | 6ee795b8a163a584157c1eedd7630774f120b829 /net/ipv6/udp.c | |
| parent | 4c3af034fafeb7269176bf1310c9bcff0b9fd9bb (diff) | |
| download | linux-3.10-22911fc581f6a241e2897a7a8603e97344a6ec82.tar.gz linux-3.10-22911fc581f6a241e2897a7a8603e97344a6ec82.tar.bz2 linux-3.10-22911fc581f6a241e2897a7a8603e97344a6ec82.zip | |
net: skb_free_datagram_locked() doesnt drop all packets
dropwatch wrongly diagnose all received UDP packets as drops.
This patch removes trace_kfree_skb() done in skb_free_datagram_locked().
Locations calling skb_free_datagram_locked() should do it on their own.
As a result, drops are accounted on the right function.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 051ad481973..1ecd1024948 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -48,6 +48,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <trace/events/skb.h> #include "udp_impl.h" int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) @@ -385,15 +386,16 @@ try_again: if (skb_csum_unnecessary(skb)) err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), - msg->msg_iov, copied ); + msg->msg_iov, copied); else { err = skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov); if (err == -EINVAL) goto csum_copy_err; } - if (err) + if (unlikely(err)) { + trace_kfree_skb(skb, udpv6_recvmsg); goto out_free; - + } if (!peeked) { if (is_udp4) UDP_INC_STATS_USER(sock_net(sk), |