[TCP]: Fix sysctl_tcp_low_latency

When enabled, this should disable UCOPY prequeue'ing altogether,
but it does not due to a missing test.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3a4c52e77e01..674bbd8cfd36 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1326,7 +1326,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
                 cleanup_rbuf(sk, copied);
 
-                if (tp->ucopy.task == user_recv) {
+                if (!sysctl_tcp_low_latency && tp->ucopy.task == user_recv) {
                         /* Install new reader */
                         if (!user_recv && !(flags & (MSG_TRUNC | MSG_PEEK))) {
                                 user_recv = current;