Hi Daniel, A minor comment:
> +/** > + * __cgroup_bpf_update() - Update the pinned program of a cgroup, and > + * propagate the change to descendants > + * @cgrp: The cgroup which descendants to traverse > + * @parent: The parent of @cgrp, or %NULL if @cgrp is the root > + * @prog: A new program to pin > + * @type: Type of pinning operation (ingress/egress) > + * > + * Each cgroup has a set of two pointers for bpf programs; one for eBPF > + * programs it owns, and which is effective for execution. > + * You have in the following section twice identical checks, for If @prog is %NULL". Shouldn't it be here (in the first case only) "If @prog is not %NULL" instead "If @prog is %NULL"? > + * If @prog is %NULL, this function attaches a new program to the cgroup and > + * releases the one that is currently attached, if any. @prog is then made > + * the effective program of type @type in that cgroup. > + * > + * If @prog is %NULL, the currently attached program of type @type is > released, > + * and the effective program of the parent cgroup (if any) is inherited to > + * @cgrp. > + * Regard, Rami Rosen
