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| author | Tushar Dave <tushar.n.dave@oracle.com> | 2017-10-27 17:28:22 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-29 12:17:32 +0900 |
| commit | 21d72af7dcf0c9f78f4fbdb93315568731014e66 (patch) | |
| tree | 0daabc4e288b2d450dbe8f9bd13331c38d20eef3 /samples | |
| parent | 6dfca831c03ef654b1f7bff1b8d487d330e9f76b (diff) | |
| download | lwn-21d72af7dcf0c9f78f4fbdb93315568731014e66.tar.gz lwn-21d72af7dcf0c9f78f4fbdb93315568731014e66.zip | |
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp_redirect_map
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/xdp_redirect_map_user.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c index d4d86a273fba..978a532f0748 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); |