On Fri, May 20, 2022 at 5:59 PM Yonghong Song <yhs@xxxxxx> wrote: > On 5/20/22 3:57 PM, Tejun Heo wrote: > > Hello, > > > > On Fri, May 20, 2022 at 03:19:19PM -0700, Alexei Starovoitov wrote: > >> We have bpf_map iterator that walks all bpf maps. > >> When map iterator is parametrized with map_fd the iterator walks > >> all elements of that map. > >> cgroup iterator should have similar semantics. > >> When non-parameterized it will walk all cgroups and their descendent > >> depth first way. I believe that's what Yonghong is proposing. > >> When parametrized it will start from that particular cgroup and > >> walk all descendant of that cgroup only. > >> The bpf prog can stop the iteration right away with ret 1. > >> Maybe we can add two parameters. One -> cgroup_fd to use and another -> > >> the order of iteration css_for_each_descendant_pre vs _post. > >> wdyt? > > > > Sounds perfectly reasonable to me. > > This works for me too. Thanks! > This sounds good to me. Thanks. Let's try to do it in the next iteration.
