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-rw-r--r--net/ipv4/tcp.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ce572f9dff0..48ada1b2d2c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -522,8 +522,12 @@ static int tcp_splice_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
unsigned int offset, size_t len)
{
struct tcp_splice_state *tss = rd_desc->arg.data;
+ int ret;
- return skb_splice_bits(skb, offset, tss->pipe, tss->len, tss->flags);
+ ret = skb_splice_bits(skb, offset, tss->pipe, rd_desc->count, tss->flags);
+ if (ret > 0)
+ rd_desc->count -= ret;
+ return ret;
}
static int __tcp_splice_read(struct sock *sk, struct tcp_splice_state *tss)
@@ -531,6 +535,7 @@ static int __tcp_splice_read(struct sock *sk, struct tcp_splice_state *tss)
/* Store TCP splice context information in read_descriptor_t. */
read_descriptor_t rd_desc = {
.arg.data = tss,
+ .count = tss->len,
};
return tcp_read_sock(sk, &rd_desc, tcp_splice_data_recv);
@@ -611,11 +616,13 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos,
tss.len -= ret;
spliced += ret;
+ if (!timeo)
+ break;
release_sock(sk);
lock_sock(sk);
if (sk->sk_err || sk->sk_state == TCP_CLOSE ||
- (sk->sk_shutdown & RCV_SHUTDOWN) || !timeo ||
+ (sk->sk_shutdown & RCV_SHUTDOWN) ||
signal_pending(current))
break;
}