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Commit 55de1703 authored by Jesper Dangaard Brouer's avatar Jesper Dangaard Brouer Committed by David S. Miller
Browse files

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: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 89c9fea3

samples/bpf/tracex2_user.c

+7 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include <signal.h>

#include <linux/bpf.h>

#include <string.h>

#include <sys/resource.h>



#include "libbpf.h"

#include "bpf_load.h"
@@ -112,6 +113,7 @@ static void int_exit(int sig) 


int main(int ac, char **argv)

{

	struct rlimit r = {1024*1024, RLIM_INFINITY};

	char filename[256];

	long key, next_key, value;

	FILE *f;
@@ -119,6 +121,11 @@ int main(int ac, char **argv) 


	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);



	if (setrlimit(RLIMIT_MEMLOCK, &r)) {

		perror("setrlimit(RLIMIT_MEMLOCK)");

		return 1;

	}



	signal(SIGINT, int_exit);



	/* start 'ping' in the background to have some kfree_skb events */

samples/bpf/tracex3_user.c

+7 −0
Original line number Diff line number Diff line
@@ -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;

samples/bpf/tracex4_user.c

+8 −0
Original line number Diff line number Diff line
@@ -12,6 +12,8 @@ 
#include <string.h>

#include <time.h>

#include <linux/bpf.h>

#include <sys/resource.h>



#include "libbpf.h"

#include "bpf_load.h"
@@ -50,11 +52,17 @@ static void print_old_objects(int fd) 


int main(int ac, char **argv)

{

	struct rlimit r = {RLIM_INFINITY, 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, RLIM_INFINITY)");

		return 1;

	}



	if (load_bpf_file(filename)) {

		printf("%s", bpf_log_buf);

		return 1;