Re: [PATCH 2/3] memcg: Limit the number of events registered onoom_control

From: Michal Hocko
Date: Wed Aug 07 2013 - 13:31:02 EST

On Wed 07-08-13 16:47:30, Michal Hocko wrote:
> On Wed 07-08-13 15:57:34, Michal Hocko wrote:
> [...]
> > Hmm, OK so you think that the fd limit is sufficient already?
> Hmm, that would need to touch the code as well (the register callback
> would need to make sure only one event is registered per cfile). But yes
> this way would be better. I will send a new patch once I have an idle
> moment.

What do you think about the following? I am not sure about EINVAL maybe
there is a better way to tell userspace it is doing something wrong. I
would appreciate any suggestions. If this looks good I will post a
similar patch for vmpressure.