aboutsummaryrefslogtreecommitdiff
path: root/samples/bpf/xdp_redirect_map_user.c
diff options
context:
space:
mode:
authorTushar Dave <tushar.n.dave@oracle.com>2017-10-27 17:28:22 -0700
committerDavid S. Miller <davem@davemloft.net>2017-10-29 12:17:32 +0900
commit21d72af7dcf0c9f78f4fbdb93315568731014e66 (patch)
tree0daabc4e288b2d450dbe8f9bd13331c38d20eef3 /samples/bpf/xdp_redirect_map_user.c
parent6dfca831c03ef654b1f7bff1b8d487d330e9f76b (diff)
downloadlinux-stericsson-21d72af7dcf0c9f78f4fbdb93315568731014e66.tar.gz
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect_map
Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure. e.g. [root@labbpf]# ./xdp_redirect_map $(</sys/class/net/eth2/ifindex) \ > $(</sys/class/net/eth3/ifindex) failed to create a map: 1 Operation not permitted The failure is 100% when multiple xdp programs are running. Fix it. Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/xdp_redirect_map_user.c')
-rw-r--r--samples/bpf/xdp_redirect_map_user.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c
index d4d86a273fba..978a532f0748 100644
--- a/samples/bpf/xdp_redirect_map_user.c
+++ b/samples/bpf/xdp_redirect_map_user.c
@@ -20,6 +20,7 @@
#include <string.h>
#include <unistd.h>
#include <libgen.h>
+#include <sys/resource.h>
#include "bpf_load.h"
#include "bpf_util.h"
@@ -74,6 +75,7 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
+ struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
const char *optstr = "SN";
char filename[256];
int ret, opt, key = 0;
@@ -97,6 +99,11 @@ int main(int argc, char **argv)
return 1;
}
+ if (setrlimit(RLIMIT_MEMLOCK, &r)) {
+ perror("setrlimit(RLIMIT_MEMLOCK)");
+ return 1;
+ }
+
ifindex_in = strtoul(argv[optind], NULL, 0);
ifindex_out = strtoul(argv[optind + 1], NULL, 0);
printf("input: %d output: %d\n", ifindex_in, ifindex_out);