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authorTushar Dave <tushar.n.dave@oracle.com>2018-02-09 22:56:12 +0300
committerAlexei Starovoitov <ast@kernel.org>2018-02-14 04:42:01 +0300
commit8ac2441e0b7b7d2e76c47e0997a6634abd80cb26 (patch)
tree781bc30183ea3765be46d986045e777e59a768e5 /samples
parent153e1b84f477f716bc3f81e6cfae1a3d941fc7ec (diff)
downloadlinux-8ac2441e0b7b7d2e76c47e0997a6634abd80cb26.tar.xz
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect
Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure. e.g. [root@labbpf]# ./xdp_redirect $(</sys/class/net/eth2/ifindex) \ > $(</sys/class/net/eth3/ifindex) failed to create a map: 1 Operation not permitted The failure is seen when executing xdp_redirect while xdp_monitor is already runnig. Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples')
-rw-r--r--samples/bpf/xdp_redirect_user.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index d54e91eb6cbf..b701b5c21342 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_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"
@@ -75,6 +76,7 @@ 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;
@@ -98,6 +100,11 @@ 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);