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Commit 7df55125 authored by David S. Miller's avatar David S. Miller
Browse files

[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: default avatarDavid S. Miller <davem@davemloft.net>
parent f7d7fc03

net/ipv4/tcp.c

+1 −1
Original line number Diff line number Diff line
@@ -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;