Messages in this thread | | | Date | Thu, 6 Mar 2014 16:15:06 -0500 | From | Tejun Heo <> | Subject | Re: [patch 10/11] mm, memcg: add memory.oom_control notification for system oom |
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On Tue, Mar 04, 2014 at 07:59:41PM -0800, David Rientjes wrote: > Now that process handling system oom conditions have access to a small > amount of memory reserves, we need a way to notify those process on > system oom conditions. > > When a userspace process waits on the root memcg's memory.oom_control, it > will wake up anytime there is a system oom condition. > > This is a special case of oom notifiers since it doesn't subsequently > notify all memcgs under the root memcg (all memcgs on the system). We > don't want to trigger those oom handlers which are set aside specifically > for true memcg oom notifications that disable their own oom killers to > enforce their own oom policy, for example. > > Signed-off-by: David Rientjes <rientjes@google.com>
Until consensus on the whole approach can be reached,
Nacked-by: Tejun Heo <tj@kernel.org>
Thanks.
-- tejun
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