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(parent: ec2aa8e) | patch
userns: Allow the userns root to mount ramfs.
authorEric W. Biederman <ebiederm@xmission.com>
Sat, 26 Jan 2013 00:37:44 +0000 (16:37 -0800)
committerEric W. Biederman <ebiederm@xmission.com>
Sun, 27 Jan 2013 06:22:38 +0000 (22:22 -0800)
commitb3c6761d9b5cc82deea7416d11c2118f6380e99c
tree1b87793fb6b27d5c298b02809800180b8ba0b449tree | snapshot (tar.gz zip)
parentec2aa8e8dd7d35524a68c89b9e7ceb07fb002561commit | diff
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>
fs/ramfs/inode.c diff | blob | blame | history