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authorZhu Yi <yi.zhu@intel.com>2010-03-04 18:01:42 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-05 13:34:00 -0800
commit55349790d7cbf0d381873a7ece1dcafcffd4aaa9 (patch)
tree2f5cc194b8d7b2fd559c24fe2dfd946535923daa /net/ipv4/udp.c
parent6b03a53a5ab7ccf2d5d69f96cf1c739c4d2a8fb9 (diff)
downloadop-kernel-dev-55349790d7cbf0d381873a7ece1dcafcffd4aaa9.zip
op-kernel-dev-55349790d7cbf0d381873a7ece1dcafcffd4aaa9.tar.gz
udp: use limited socket backlog
Make udp adapt to the limited socket backlog change. Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "Pekka Savola (ipv6)" <pekkas@netcore.fi> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 608a544..e7eb47f 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1371,8 +1371,10 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
bh_lock_sock(sk);
if (!sock_owned_by_user(sk))
rc = __udp_queue_rcv_skb(sk, skb);
- else
- sk_add_backlog(sk, skb);
+ else if (sk_add_backlog_limited(sk, skb)) {
+ bh_unlock_sock(sk);
+ goto drop;
+ }
bh_unlock_sock(sk);
return rc;
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