[PATCH review 23/85] ocfs2: Convert uid and gids between in core and on disk inodes

[Eric W. Biederman]

Joel Becker <jlbec at evilplan.org> writes:

> This has the same problem with two machines in different userspace
> namespaces.  Should this be punted to the sysadmin or helped out in the
> filesystem?  Do you define this case as unsupported?

First I define two machines in the same user namespace as two machines
with synchronized password files.

As today connecting two machines without synchronizing the password
entries is a problem, won't work, and is punted to the sysadmin to make
keep from doing something silly.

At the same time I don't want to make it easy to get confused, or cause
breakage.

With these patches ocfs2 only still only works in the initial user
namespace.  I don't set .fs_flags = FS_USERNS_MOUNT in struct
filesystem.  Which means that while users in other user namespaces can
store files on ocfs2, they can't mount ocfs2.

Eric