On Thu, 20 Apr 2023 at 01:28, Kui-Feng Lee <thinker.li@xxxxxxxxx> wrote:
>
> You can include an optional path after specifying the object name for the
> 'struct_ops register' subcommand.
>
> Since the commit 226bc6ae6405 ("Merge branch 'Transit between BPF TCP
> congestion controls.'") has been accepted, it is now possible to create a
> link for a struct_ops. This can be done by defining a struct_ops in
> SEC(".struct_ops.link") to make libbpf returns a real link. If we don't pin
> the links before leaving bpftool, they will disappear. To instruct bpftool
> to pin the links in a directory with the names of the maps, we need to
> provide the path of that directory.
>
> Signed-off-by: Kui-Feng Lee <kuifeng@xxxxxxxx>
Reviewed-by: Quentin Monnet <quentin@xxxxxxxxxxxxx>
