tree 1b87793fb6b27d5c298b02809800180b8ba0b449
parent ec2aa8e8dd7d35524a68c89b9e7ceb07fb002561
author Eric W. Biederman <ebiederm@xmission.com> 1359160664 -0800
committer Eric W. Biederman <ebiederm@xmission.com> 1359267758 -0800

userns: Allow the userns root to mount ramfs.

There is no backing store to ramfs and file creation
rules are the same as for any other filesystem so
it is semantically safe to allow unprivileged users
to mount it.

The memory control group successfully limits how much
memory ramfs can consume on any system that cares about
a user namespace root using ramfs to exhaust memory
the memory control group can be deployed.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>