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authorJesper Dangaard Brouer <brouer@redhat.com>2017-05-02 14:31:50 +0200
committerDavid S. Miller <davem@davemloft.net>2017-05-03 09:30:23 -0400
commit55de170382a92d6da6fc9f23efc21eb2f3d25126 (patch)
treefcb84ec0ae4fac1fcc8e40f0e68be42dba784868 /samples/bpf/tracex3_user.c
parent89c9fea3c8034cdb2fd745f551cde0b507fd6893 (diff)
downloadlinux-stericsson-55de170382a92d6da6fc9f23efc21eb2f3d25126.tar.gz
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for traceex2, tracex3 and tracex4
Needed to adjust max locked memory RLIMIT_MEMLOCK for testing these bpf samples as these are using more and larger maps than can fit in distro default 64Kbytes limit. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/tracex3_user.c')
-rw-r--r--samples/bpf/tracex3_user.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/bpf/tracex3_user.c b/samples/bpf/tracex3_user.c
index 8f7d199d5945..fe372239d505 100644
--- a/samples/bpf/tracex3_user.c
+++ b/samples/bpf/tracex3_user.c
@@ -11,6 +11,7 @@
#include <stdbool.h>
#include <string.h>
#include <linux/bpf.h>
+#include <sys/resource.h>
#include "libbpf.h"
#include "bpf_load.h"
@@ -112,11 +113,17 @@ static void print_hist(int fd)
int main(int ac, char **argv)
{
+ struct rlimit r = {1024*1024, RLIM_INFINITY};
char filename[256];
int i;
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
+ if (setrlimit(RLIMIT_MEMLOCK, &r)) {
+ perror("setrlimit(RLIMIT_MEMLOCK)");
+ return 1;
+ }
+
if (load_bpf_file(filename)) {
printf("%s", bpf_log_buf);
return 1;