Re: [PATCH review 0/11] General unprivileged mount support

Andy Lutomirski [off-list ref] writes:

On Sat, Jul 2, 2016 at 10:18 AM, Eric W. Biederman
[off-list ref] wrote:

quoted

As well as in these patches the code is also available from:
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git for-testing

Minor nit: in "fs: Refuse uid/gid changes which don't map into
s_user_ns", the changelog ends in the middle of a sentence.

This text?

For filesystems mounted from a user namespace on-disk ids should
be translated relative to s_users_ns rather than init_user_ns.

When an id in the filesystem doesn't exist in s_user_ns the
associated id in the inode will be set to INVALID_[UG]ID, which
turns these into de facto "nobody" ids. This actually maps pretty
well into the way most code already works, and those places where
it didn't were fixed in previous patches. Moving forward vfs code
needs to be careful to handle instances where ids in inodes may
be invalid.

I don't see the changelog problem you are talking about.

Eric