Re: Potential issues (security and otherwise) with the current cgroup-bpf API

From	Michal Hocko <mhocko@kernel.org>
Newsgroups	linux.kernel
Subject	Re: Potential issues (security and otherwise) with the current cgroup-bpf API
Date	2017-01-19 10:10 +0100
Message-ID	<t1gTf-805-3@gated-at.bofh.it> (permalink)
References	(5 earlier) <t047L-1vN-5@gated-at.bofh.it> <t0BZM-7Ce-21@gated-at.bofh.it> <t0C9s-7FP-11@gated-at.bofh.it> <t0CM9-88g-3@gated-at.bofh.it> <t16TU-1vQ-27@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Wed 18-01-17 14:18:50, Tejun Heo wrote:
> Hello, Michal.
> 
> On Tue, Jan 17, 2017 at 02:58:30PM +0100, Michal Hocko wrote:
> > This would require using hierarchical cgroup iterators to iterate over
> 
> It does behave hierarchically.
> 
> > tasks. As per Andy's testing this doesn't seem to be the case. I haven't
> 
> That's not what Andy's testing showed.  What that showed was that
> program in a child can override the one from its ancestor.

My fault, I've misread Andy's test case. I thought that the child group
simply disabled the bpf program and the one from the parent hasn't
executed.
-- 
Michal Hocko
SUSE Labs

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Michal Hocko <mhocko@kernel.org> - 2017-01-17 14:30 +0100
  Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Peter Zijlstra <peterz@infradead.org> - 2017-01-17 14:40 +0100
    Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Michal Hocko <mhocko@kernel.org> - 2017-01-17 15:20 +0100
      Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Andy Lutomirski <luto@amacapital.net> - 2017-01-17 21:40 +0100
      Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Tejun Heo <tj@kernel.org> - 2017-01-18 23:30 +0100
        Re: Potential issues (security and otherwise) with the current  cgroup-bpf API Michal Hocko <mhocko@kernel.org> - 2017-01-19 10:10 +0100

csiph-web