| Message ID | 1509150502-6632-1-git-send-email-tushar.n.dave@oracle.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
| Series | [net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect_map | expand |
On Fri, Oct 27, 2017 at 05:28:22PM -0700, Tushar Dave wrote: > Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure. > e.g. > [root@labbpf]# ./xdp_redirect_map $(</sys/class/net/eth2/ifindex) \ > > $(</sys/class/net/eth3/ifindex) > failed to create a map: 1 Operation not permitted > > The failure is 100% when multiple xdp programs are running. Fix it. > > Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Acked-by: Alexei Starovoitov <ast@kernel.org>
From: Tushar Dave <tushar.n.dave@oracle.com> Date: Fri, 27 Oct 2017 17:28:22 -0700 > Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure. > e.g. > [root@labbpf]# ./xdp_redirect_map $(</sys/class/net/eth2/ifindex) \ >> $(</sys/class/net/eth3/ifindex) > failed to create a map: 1 Operation not permitted > > The failure is 100% when multiple xdp programs are running. Fix it. > > Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com> Applied.
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c index d4d86a2..978a532 100644 --- a/samples/bpf/xdp_redirect_map_user.c +++ b/samples/bpf/xdp_redirect_map_user.c @@ -20,6 +20,7 @@ #include <string.h> #include <unistd.h> #include <libgen.h> +#include <sys/resource.h> #include "bpf_load.h" #include "bpf_util.h" @@ -74,6 +75,7 @@ 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 ret, opt, key = 0; @@ -97,6 +99,11 @@ int main(int argc, char **argv) return 1; } + if (setrlimit(RLIMIT_MEMLOCK, &r)) { + perror("setrlimit(RLIMIT_MEMLOCK)"); + return 1; + } + ifindex_in = strtoul(argv[optind], NULL, 0); ifindex_out = strtoul(argv[optind + 1], NULL, 0); printf("input: %d output: %d\n", ifindex_in, ifindex_out);