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Commit 6dfca831 authored by Tushar Dave's avatar Tushar Dave Committed by David S. Miller
Browse files

samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 



Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
e.g.
[root@lab bpf]#./xdp1 -N $(</sys/class/net/eth2/ifindex)
failed to create a map: 1 Operation not permitted

Fix it.

Signed-off-by: default avatarTushar Dave <tushar.n.dave@oracle.com>
Acked-by: default avatarAlexei Starovoitov <ast@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5c1a6eaf

samples/bpf/xdp1_user.c

+8 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <string.h>

#include <unistd.h>

#include <libgen.h>

#include <sys/resource.h>



#include "bpf_load.h"

#include "bpf_util.h"
@@ -69,6 +70,7 @@ 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 opt;
@@ -91,6 +93,12 @@ int main(int argc, char **argv) 
		usage(basename(argv[0]));

		return 1;

	}



	if (setrlimit(RLIMIT_MEMLOCK, &r)) {

		perror("setrlimit(RLIMIT_MEMLOCK)");

		return 1;

	}



	ifindex = strtoul(argv[optind], NULL, 0);



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