Hello, This patch is creating a new misc cgroup controller for allocation and tracking of resources which are not abstract like other cgroup controllers.
This controller was initially proposed as encryption_id but after the feedbacks, it is now changed to misc cgroup. https://lore.kernel.org/lkml/20210108012846.4134815-2-vipi...@google.com/ Changes from the encryption_id controller are: 1. There are only 3 files misc.{capacity, max, current} for all resources compared to each resource having their own 3 files in encryption_id cgroup. 2. If a resource capacity is 0 then it is considered inactive and won't show up in control files. 2. This is a lockless implementation similar to page counter APIs compared to single lock implementation in encryption_id cgroup. Please provide any feedback for this RFC or if it is good for merging then I can send a patch for merging. Thanks Vipin Sharma (2): cgroup: sev: Add misc cgroup controller cgroup: sev: Miscellaneous cgroup documentation. Documentation/admin-guide/cgroup-v1/misc.rst | 1 + Documentation/admin-guide/cgroup-v2.rst | 64 ++- arch/x86/kvm/svm/sev.c | 60 ++- arch/x86/kvm/svm/svm.h | 1 + include/linux/cgroup_subsys.h | 4 + include/linux/misc_cgroup.h | 75 +++ init/Kconfig | 14 + kernel/cgroup/Makefile | 1 + kernel/cgroup/misc.c | 456 +++++++++++++++++++ 9 files changed, 664 insertions(+), 12 deletions(-) create mode 100644 Documentation/admin-guide/cgroup-v1/misc.rst create mode 100644 include/linux/misc_cgroup.h create mode 100644 kernel/cgroup/misc.c -- 2.30.0.617.g56c4b15f3c-goog
