samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 (6dfca831) · Commits · 戴 / test

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:

Tushar Dave <tushar.n.dave@oracle.com> Acked-by:

Alexei Starovoitov <ast@kernel.org> Signed-off-by:

David S. Miller <davem@davemloft.net>

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]);

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