The non-hierarchical cgroup v1 mode is a legacy of early days of the memory controller and doesn't bring any value today. However, it complicates the code and creates many edge cases all over the memory controller code. It's a good time to deprecate it completely. This patchset removes the internal logic, adjusts the user interface and updates the documentation. The alt patch removes some bits of the cgroup core code, which become obsolete. Roman Gushchin (3): mm: memcg: deprecate the non-hierarchical mode docs: cgroup-v1: reflect the deprecation of the non-hierarchical mode cgroup: remove obsoleted broken_hierarchy and warned_broken_hierarchy .../admin-guide/cgroup-v1/memcg_test.rst | 8 +- .../admin-guide/cgroup-v1/memory.rst | 40 +++------ include/linux/cgroup-defs.h | 15 ---- include/linux/memcontrol.h | 7 -- kernel/cgroup/cgroup.c | 12 --- mm/memcontrol.c | 90 +++---------------- 6 files changed, 29 insertions(+), 143 deletions(-) -- 2.26.2