I finally had the chance to set some time aside to touch the Linux kernel source, for fun and profit. This is the story of how I implemented a new BPF helper.
_ _ _ | | | | | | | | | | ___| | ___ ___ _ __ ___ ___ | |/\| |/ _ \ |/ __/ _ \| '_ ` _ \ / _ \ \ /\ / __/ | (_| (_) | | | | | | __/ \/ \/ \___|_|\___\___/|_| |_| |_|\___|