net: add a limit parameter to sk_add_backlog()
sk_add_backlog() & sk_rcvqueues_full() hard coded sk_rcvbuf as the
memory limit. We need to make this limit a parameter for TCP use.
No functional change expected in this patch, all callers still using the
old sk_rcvbuf limit.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Cc: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 37b0699..d39bbc9 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -611,14 +611,14 @@
sk = stack[i];
if (skb1) {
- if (sk_rcvqueues_full(sk, skb1)) {
+ if (sk_rcvqueues_full(sk, skb1, sk->sk_rcvbuf)) {
kfree_skb(skb1);
goto drop;
}
bh_lock_sock(sk);
if (!sock_owned_by_user(sk))
udpv6_queue_rcv_skb(sk, skb1);
- else if (sk_add_backlog(sk, skb1)) {
+ else if (sk_add_backlog(sk, skb1, sk->sk_rcvbuf)) {
kfree_skb(skb1);
bh_unlock_sock(sk);
goto drop;
@@ -790,14 +790,14 @@
/* deliver */
- if (sk_rcvqueues_full(sk, skb)) {
+ if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
sock_put(sk);
goto discard;
}
bh_lock_sock(sk);
if (!sock_owned_by_user(sk))
udpv6_queue_rcv_skb(sk, skb);
- else if (sk_add_backlog(sk, skb)) {
+ else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
atomic_inc(&sk->sk_drops);
bh_unlock_sock(sk);
sock_put(sk);