bpf: sockmap set rlimit

Avoid extra step of setting limit from cmdline and do it directly in the program. Signed-off-by: John Fastabend <[email protected]> Acked-by: Martin KaFai Lau <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
ambv · Jan 24, 2018 · 8e0ef38 · 8e0ef38
1 parent ede1547
commit 8e0ef38
Showing 1 changed file with 7 additions and 0 deletions.
diff --git 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;