[PATCH V4 19/38] x86/intel_rdt: Add utility to restrict/restore access to resctrl files

2018-05-22 Thread Reinette Chatre
When a resource group is used for Cache Pseudo-Locking then the region of cache ends up being orphaned with no class of service referring to it. The resctrl files intended to manage how the classes of services are utilized thus become irrelevant. The fact that a resctrl file is not relevant can

[PATCH V4 19/38] x86/intel_rdt: Add utility to restrict/restore access to resctrl files

2018-05-22 Thread Reinette Chatre
When a resource group is used for Cache Pseudo-Locking then the region of cache ends up being orphaned with no class of service referring to it. The resctrl files intended to manage how the classes of services are utilized thus become irrelevant. The fact that a resctrl file is not relevant can