From: John Fastabend <john.fastabend@gmail.com>
Date: Mon, 22 Jan 2018 10:36:53 -0800
Subject: bpf: sockmap put client sockets in blocking mode
Patch-mainline: v4.16-rc1
Git-commit: ede154776c8bf5b1032b1d619db15485b9f34387
References: bsc#1109837

Put client sockets in blocking mode otherwise with sendmsg tests
its easy to overrun the socket buffers which results in the test
being aborted.

The original non-blocking was added to handle listen/accept with
a single thread the client/accepted sockets do not need to be
non-blocking.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 samples/sockmap/sockmap_user.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -109,7 +109,7 @@ static int sockmap_init_sockets(void)
 	}
 
 	/* Non-blocking sockets */
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < 2; i++) {
 		err = ioctl(*fds[i], FIONBIO, (char *)&one);
 		if (err < 0) {
 			perror("ioctl s1 failed()");