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Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 9be30b0..2fd2bc9 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4351,19 +4351,20 @@ static void tcp_ofo_queue(struct sock *sk)
static bool tcp_prune_ofo_queue(struct sock *sk);
static int tcp_prune_queue(struct sock *sk);
-static int tcp_try_rmem_schedule(struct sock *sk, unsigned int size)
+static int tcp_try_rmem_schedule(struct sock *sk, struct sk_buff *skb,
+ unsigned int size)
{
if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
- !sk_rmem_schedule(sk, size)) {
+ !sk_rmem_schedule(sk, skb, size)) {
if (tcp_prune_queue(sk) < 0)
return -1;
- if (!sk_rmem_schedule(sk, size)) {
+ if (!sk_rmem_schedule(sk, skb, size)) {
if (!tcp_prune_ofo_queue(sk))
return -1;
- if (!sk_rmem_schedule(sk, size))
+ if (!sk_rmem_schedule(sk, skb, size))
return -1;
}
}
@@ -4418,7 +4419,7 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb)
TCP_ECN_check_ce(tp, skb);
- if (unlikely(tcp_try_rmem_schedule(sk, skb->truesize))) {
+ if (unlikely(tcp_try_rmem_schedule(sk, skb, skb->truesize))) {
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPOFODROP);
__kfree_skb(skb);
return;
@@ -4552,17 +4553,17 @@ static int __must_check tcp_queue_rcv(struct sock *sk, struct sk_buff *skb, int
int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size)
{
- struct sk_buff *skb;
+ struct sk_buff *skb = NULL;
struct tcphdr *th;
bool fragstolen;
- if (tcp_try_rmem_schedule(sk, size + sizeof(*th)))
- goto err;
-
skb = alloc_skb(size + sizeof(*th), sk->sk_allocation);
if (!skb)
goto err;
+ if (tcp_try_rmem_schedule(sk, skb, size + sizeof(*th)))
+ goto err_free;
+
th = (struct tcphdr *)skb_put(skb, sizeof(*th));
skb_reset_transport_header(skb);
memset(th, 0, sizeof(*th));
@@ -4633,7 +4634,7 @@ static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
if (eaten <= 0) {
queue_and_out:
if (eaten < 0 &&
- tcp_try_rmem_schedule(sk, skb->truesize))
+ tcp_try_rmem_schedule(sk, skb, skb->truesize))
goto drop;
eaten = tcp_queue_rcv(sk, skb, 0, &fragstolen);