samples/bpf: add map_flags to bpf loader
note old loader is compatible with new kernel.
map_flags are optional
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/samples/bpf/libbpf.c b/samples/bpf/libbpf.c
index 65a8d48..9969e35 100644
--- a/samples/bpf/libbpf.c
+++ b/samples/bpf/libbpf.c
@@ -19,13 +19,14 @@
}
int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
- int max_entries)
+ int max_entries, int map_flags)
{
union bpf_attr attr = {
.map_type = map_type,
.key_size = key_size,
.value_size = value_size,
- .max_entries = max_entries
+ .max_entries = max_entries,
+ .map_flags = map_flags,
};
return syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));