Hello, On Wed, May 24, 2017 at 01:49:46PM -0400, Waiman Long wrote: > What I am saying is as follows: > / A > P - B > \ C > > # echo +memory > P/cgroups.subtree_control > # echo -memory > P/A/cgroup.controllers > # echo "#memory" > P/B/cgroup.controllers > > The parent grants the memory controller to its children - A, B and C. > Child A has the memory controller explicitly disabled. Child B has the > memory controller in pass-through mode, while child C has the memory > controller enabled by default. "echo +memory > cgroup.controllers" is > not allowed. There are 2 possible choices with regard to the '-' or '#' > prefixes. We can allow them before the grant from the parent or only > after that. In the former case, the state remains dormant until after > the grant from the parent. Ah, I see, you want cgroup.controllers to be able to mask available controllers by the parent. Can you expand your example with further nesting and how #memory on cgroup.controllers would affect the nested descendant? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
