Stuff about cgroups v2.
CONFIG_CGROUPS=y CONFIG_CGROUP_FREEZER=y CONFIG_CPUSETS=y CONFIG_CGROUP_CPUACCT=y CONFIG_CGROUP_SCHED=y
menuconfig CGROUPS bool "Control Group support" select KERNFS help This option adds support for grouping sets of processes together, for use with process control subsystems such as Cpusets, CFS, memory controls or device isolation. See - Documentation/scheduler/sched-design-CFS.rst (CFS) - Documentation/admin-guide/cgroup-v1/ (features for grouping, isolation and resource control) Say N if unsure.
obj-$(CONFIG_CGROUPS) += cgroup/
-rw-rw-r--. 1 rpjday rpjday 174723 Jul 22 05:47 cgroup.c -rw-rw-r--. 1 rpjday rpjday 8819 May 14 06:14 cgroup-internal.h -rw-rw-r--. 1 rpjday rpjday 34559 Jun 1 16:37 cgroup-v1.c -rw-rw-r--. 1 rpjday rpjday 100438 Jul 22 05:47 cpuset.c -rw-rw-r--. 1 rpjday rpjday 8409 May 14 06:14 debug.c -rw-rw-r--. 1 rpjday rpjday 7749 May 14 06:14 freezer.c -rw-rw-r--. 1 rpjday rpjday 12686 May 14 06:14 legacy_freezer.c -rw-rw-r--. 1 rpjday rpjday 289 May 14 06:14 Makefile -rw-rw-r--. 1 rpjday rpjday 3412 Jan 18 2019 namespace.c -rw-rw-r--. 1 rpjday rpjday 8958 Jul 8 17:43 pids.c -rw-rw-r--. 1 rpjday rpjday 15012 Jul 8 17:43 rdma.c -rw-rw-r--. 1 rpjday rpjday 11149 Jun 1 16:37 rstat.c
# SPDX-License-Identifier: GPL-2.0 obj-y := cgroup.o rstat.o namespace.o cgroup-v1.o freezer.o obj-$(CONFIG_CGROUP_FREEZER) += legacy_freezer.o obj-$(CONFIG_CGROUP_PIDS) += pids.o obj-$(CONFIG_CGROUP_RDMA) += rdma.o obj-$(CONFIG_CPUSETS) += cpuset.o obj-$(CONFIG_CGROUP_DEBUG) += debug.o
$ mount -t cgroup cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,xattr,name=systemd) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,cpu,cpuacct) cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,pids) cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,net_cls,net_prio) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,blkio) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,freezer) cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,hugetlb) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,cpuset) cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,perf_event) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,memory) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,devices) $
$ mount -t cgroup2 cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,seclabel,nsdelegate) $