tree 0546f050a5173c376a319e7fff09dae12abf535a
parent 0c19a9fbc9cdba29c7effb34fd5a97226bf934e6
author Stanislav Fomichev <sdf@google.com> 1541780502 -0800
committer Alexei Starovoitov <ast@kernel.org> 1541894170 -0800

libbpf: bpf_program__pin: add special case for instances.nr == 1

When bpf_program has only one instance, don't create a subdirectory with
per-instance pin files (<prog>/0). Instead, just create a single pin file
for that single instance. This simplifies object pinning by not creating
unnecessary subdirectories.

This can potentially break existing users that depend on the case
where '/0' is always created. However, I couldn't find any serious
usage of bpf_program__pin inside the kernel tree and I suppose there
should be none outside.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>