samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1
[ Upstream commit 6dfca831c03ef654b1f7bff1b8d487d330e9f76b ] 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> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -14,6 +14,7 @@
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#include <string.h>
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#include <unistd.h>
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#include <libgen.h>
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#include <sys/resource.h>
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#include "bpf_load.h"
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#include "bpf_util.h"
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@ -69,6 +70,7 @@ static void usage(const char *prog)
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int main(int argc, char **argv)
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{
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struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
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const char *optstr = "SN";
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char filename[256];
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int opt;
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@ -91,6 +93,12 @@ int main(int argc, char **argv)
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usage(basename(argv[0]));
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return 1;
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}
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if (setrlimit(RLIMIT_MEMLOCK, &r)) {
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perror("setrlimit(RLIMIT_MEMLOCK)");
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return 1;
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}
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ifindex = strtoul(argv[optind], NULL, 0);
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snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
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