diff options
Diffstat (limited to 'Documentation/sysctl/user.rst')
| -rw-r--r-- | Documentation/sysctl/user.rst | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/Documentation/sysctl/user.rst b/Documentation/sysctl/user.rst deleted file mode 100644 index 650eaa03f15e..000000000000 --- a/Documentation/sysctl/user.rst +++ /dev/null @@ -1,78 +0,0 @@ -================================= -Documentation for /proc/sys/user/ -================================= - -kernel version 4.9.0 - -Copyright (c) 2016 Eric Biederman <ebiederm@xmission.com> - ------------------------------------------------------------------------------- - -This file contains the documentation for the sysctl files in -/proc/sys/user. - -The files in this directory can be used to override the default -limits on the number of namespaces and other objects that have -per user per user namespace limits. - -The primary purpose of these limits is to stop programs that -malfunction and attempt to create a ridiculous number of objects, -before the malfunction becomes a system wide problem. It is the -intention that the defaults of these limits are set high enough that -no program in normal operation should run into these limits. - -The creation of per user per user namespace objects are charged to -the user in the user namespace who created the object and -verified to be below the per user limit in that user namespace. - -The creation of objects is also charged to all of the users -who created user namespaces the creation of the object happens -in (user namespaces can be nested) and verified to be below the per user -limits in the user namespaces of those users. - -This recursive counting of created objects ensures that creating a -user namespace does not allow a user to escape their current limits. - -Currently, these files are in /proc/sys/user: - -max_cgroup_namespaces -===================== - - The maximum number of cgroup namespaces that any user in the current - user namespace may create. - -max_ipc_namespaces -================== - - The maximum number of ipc namespaces that any user in the current - user namespace may create. - -max_mnt_namespaces -================== - - The maximum number of mount namespaces that any user in the current - user namespace may create. - -max_net_namespaces -================== - - The maximum number of network namespaces that any user in the - current user namespace may create. - -max_pid_namespaces -================== - - The maximum number of pid namespaces that any user in the current - user namespace may create. - -max_user_namespaces -=================== - - The maximum number of user namespaces that any user in the current - user namespace may create. - -max_uts_namespaces -================== - - The maximum number of user namespaces that any user in the current - user namespace may create. |