From 22911fc581f6a241e2897a7a8603e97344a6ec82 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 27 Jun 2012 00:23:44 +0000 Subject: 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 Signed-off-by: David S. Miller --- net/sunrpc/svcsock.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'net/sunrpc') diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index a6de09de5d21..18bc130255a7 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -619,6 +620,8 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp) if (!svc_udp_get_dest_address(rqstp, cmh)) { net_warn_ratelimited("svc: received unknown control message %d/%d; dropping RPC reply datagram\n", cmh->cmsg_level, cmh->cmsg_type); +out_free: + trace_kfree_skb(skb, svc_udp_recvfrom); skb_free_datagram_locked(svsk->sk_sk, skb); return 0; } @@ -630,8 +633,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp) if (csum_partial_copy_to_xdr(&rqstp->rq_arg, skb)) { local_bh_enable(); /* checksum error */ - skb_free_datagram_locked(svsk->sk_sk, skb); - return 0; + goto out_free; } local_bh_enable(); skb_free_datagram_locked(svsk->sk_sk, skb); @@ -640,10 +642,8 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp) rqstp->rq_arg.head[0].iov_base = skb->data + sizeof(struct udphdr); rqstp->rq_arg.head[0].iov_len = len; - if (skb_checksum_complete(skb)) { - skb_free_datagram_locked(svsk->sk_sk, skb); - return 0; - } + if (skb_checksum_complete(skb)) + goto out_free; rqstp->rq_xprt_ctxt = skb; } -- cgit v1.2.3-59-g8ed1b