From: John Fastabend <john.fastabend@gmail.com>
Date: Mon, 22 Jan 2018 18:37:11 +0000 (-0800)
Subject: bpf: sockmap set rlimit
X-Git-Tag: v4.19~1702^2~33^2~7^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8e0ef38052c81b08310a8e31a2e6da0a32359257;p=platform%2Fkernel%2Flinux-rpi3.git

bpf: sockmap set rlimit

Avoid extra step of setting limit from cmdline and do it directly in
the program.

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>
---

diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
index fe943c9..7c25c0c 100644
--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -27,6 +27,7 @@
 #include <time.h>
 
 #include <sys/time.h>
+#include <sys/resource.h>
 #include <sys/types.h>
 
 #include <linux/netlink.h>
@@ -447,6 +448,7 @@ enum {
 int main(int argc, char **argv)
 {
 	int iov_count = 1, length = 1024, rate = 1, verbose = 0;
+	struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
 	int opt, longindex, err, cg_fd = 0;
 	int test = PING_PONG;
 	char filename[256];
@@ -501,6 +503,11 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
+	if (setrlimit(RLIMIT_MEMLOCK, &r)) {
+		perror("setrlimit(RLIMIT_MEMLOCK)");
+		return 1;
+	}
+
 	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
 
 	running = 1;