Hello, On Tue, May 10, 2022 at 12:18:06AM +0000, Yosry Ahmed wrote: > From: Hao Luo <haoluo@xxxxxxxxxx> > > Introduce a new type of iter prog: cgroup. Unlike other bpf_iter, this > iter doesn't iterate a set of kernel objects. Instead, it is supposed to > be parameterized by a cgroup id and prints only that cgroup. So one > needs to specify a target cgroup id when attaching this iter. The target > cgroup's state can be read out via a link of this iter. Is there a reason why this can't be a proper iterator which supports lseek64() to locate a specific cgroup? Thanks. -- tejun