diff options
| author | Joe Stringer <joe@ovn.org> | 2016-12-08 18:46:16 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-12-15 16:25:47 -0300 |
| commit | a5580c7f7a6d078696458d283df5d6547ad1c740 (patch) | |
| tree | 68c3e9b629a16ef97af98fd6eadb4bead6eafaa0 /tools/lib/bpf/bpf.c | |
| parent | 83d994d02bf4594d6bfa9b2b67befb6cff7f9380 (diff) | |
tools lib bpf: Add flags to bpf_create_map()
Commit 6c905981743 ("bpf: pre-allocate hash map elements") introduces
map_flags to bpf_attr for BPF_MAP_CREATE command. Expose this new
parameter in libbpf.
By exposing it, users can access flags such as whether or not to
preallocate the map.
Signed-off-by: Joe Stringer <joe@ovn.org>
Acked-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Link: http://lkml.kernel.org/r/20161209024620.31660-4-joe@ovn.org
[ Added clarifying comment made by Wang Nan ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/bpf/bpf.c')
| -rw-r--r-- | tools/lib/bpf/bpf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 89e8e8e5b60e..d0afb26c2e0f 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -54,7 +54,7 @@ static int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr, } int bpf_create_map(enum bpf_map_type map_type, int key_size, - int value_size, int max_entries) + int value_size, int max_entries, __u32 map_flags) { union bpf_attr attr; @@ -64,6 +64,7 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, attr.key_size = key_size; attr.value_size = value_size; attr.max_entries = max_entries; + attr.map_flags = map_flags; return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr)); } |