Messages in this thread | | | Date | Fri, 20 May 2022 17:59:21 -0700 | Subject | Re: [PATCH bpf-next v1 3/5] bpf: Introduce cgroup iter | From | Yonghong Song <> |
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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!
> > Thanks. >
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