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| -rw-r--r-- | man/file-hierarchy.xml | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/man/file-hierarchy.xml b/man/file-hierarchy.xml index 3a24eca8ce..a6e3d75695 100644 --- a/man/file-hierarchy.xml +++ b/man/file-hierarchy.xml @@ -420,6 +420,25 @@ this directory.</para></listitem> </varlistentry> + <varlistentry> + <term><filename>/sys/fs/cgroup/</filename></term> + <listitem><para>A virtual kernel file system exposing process + control groups (cgroups). This file system is an API to interface + with the kernel and not a place where normal files may be stored. On + current systems running in the default "unified" mode, + this directory serves as the mount point for the + <literal>cgroup2</literal> filesystem, which provides a unified + cgroup hierarchy for all resource controllers. On systems with + non-default configurations, this directory may instead be a tmpfs + filesystem containing mount points for various + <literal>cgroup</literal> (v1) resource controllers; in such + configurations, if <literal>cgroup2</literal> is mounted it will be + mounted on <filename>/sys/fs/cgroup/unified/</filename>, but + cgroup2 will not have resource controllers attached. In + sandboxed/containerized setups, this directory may either not exist or + may include a subset of functionality. + </para></listitem> + </varlistentry> </variablelist> </refsect1> |