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| author | Tushar Dave <tushar.n.dave@oracle.com> | 2018-02-09 11:56:12 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-02-13 17:42:01 -0800 |
| commit | 8ac2441e0b7b7d2e76c47e0997a6634abd80cb26 (patch) | |
| tree | 781bc30183ea3765be46d986045e777e59a768e5 | |
| parent | 153e1b84f477f716bc3f81e6cfae1a3d941fc7ec (diff) | |
| download | linux-8ac2441e0b7b7d2e76c47e0997a6634abd80cb26.tar.bz2 | |
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect
Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
e.g.
[root@labbpf]# ./xdp_redirect $(</sys/class/net/eth2/ifindex) \
> $(</sys/class/net/eth3/ifindex)
failed to create a map: 1 Operation not permitted
The failure is seen when executing xdp_redirect while xdp_monitor
is already runnig.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | samples/bpf/xdp_redirect_user.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c index d54e91eb6cbf..b701b5c21342 100644 --- a/samples/bpf/xdp_redirect_user.c +++ b/samples/bpf/xdp_redirect_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" @@ -75,6 +76,7 @@ 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; @@ -98,6 +100,11 @@ 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); |