From: Tushar Dave tushar.n.dave@oracle.com
[ 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 --- samples/bpf/xdp1_user.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c index 2431c0321b71..fdaefe91801d 100644 --- a/samples/bpf/xdp1_user.c +++ b/samples/bpf/xdp1_user.c @@ -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]);