Messages in this thread | | | Date | Wed, 5 Sep 2012 13:12:38 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH v2] memcg: first step towards hierarchical controller |
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Hello, Michal.
On Wed, Sep 05, 2012 at 04:49:42PM +0200, Michal Hocko wrote: > Can we settle on the following 3 steps? > 1) warn about "flat" hierarchies (give it X releases) - I will push it > to as many Suse code streams as possible (hope other distributions > could do the same)
I think I'm just gonna trigger WARN from cgroup core if anyone tries to create hierarchy with a controller which doesn't support full hierarchy. WARN_ON_ONCE() at first and then WARN_ON() on each creation later on.
> 2) flip the default on the root cgroup & warn when somebody tries to > change it to 0 (give it another X releases) that the knob will be > removed > 3) remove the knob and the whole nonsese > 4) revert 3 if somebody really objects
If we can get to 3, I don't think 4 would be a problem.
Thanks.
-- tejun
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