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| author | Tushar Dave <tushar.n.dave@oracle.com> | 2017-10-27 16:12:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-29 12:17:13 +0900 |
| commit | 6dfca831c03ef654b1f7bff1b8d487d330e9f76b (patch) | |
| tree | a61e2bc456827fd8eaed8aef7eda09a0c246c7df /samples/bpf/xdp1_user.c | |
| parent | 5c1a6eaf0d4eb51e96f193a603af59b55660cb08 (diff) | |
| download | lwn-6dfca831c03ef654b1f7bff1b8d487d330e9f76b.tar.gz lwn-6dfca831c03ef654b1f7bff1b8d487d330e9f76b.zip | |
samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1
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>
Diffstat (limited to 'samples/bpf/xdp1_user.c')
| -rw-r--r-- | samples/bpf/xdp1_user.c | 8 |
1 files changed, 8 insertions, 0 deletions
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]); |