| Message ID | 1509145950-5840-1-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 xdp1 | expand |
On Fri, Oct 27, 2017 at 04:12:30PM -0700, Tushar Dave wrote: > 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>
From: Tushar Dave <tushar.n.dave@oracle.com> Date: Fri, 27 Oct 2017 16:12:30 -0700 > 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> Applied.
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c index 2431c03..fdaefe9 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]);
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> --- samples/bpf/xdp1_user.c | 8 ++++++++ 1 file changed, 8 insertions(+)