tree 5b6f8175e8cce90109c60032370281c37c580a34
parent da362b09e42ee0bcaf0356afee6078b4f324baff
author Eric W. Biederman <ebiederm@xmission.com> 1412724172 -0700
committer Eric W. Biederman <ebiederm@xmission.com> 1417538810 -0600

mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.

Clear MNT_LOCKED in the callers of copy_tree except copy_mnt_ns, and
collect_mounts.  In copy_mnt_ns it is necessary to create an exact
copy of a mount tree, so not clearing MNT_LOCKED is important.
Similarly collect_mounts is used to take a snapshot of the mount tree
for audit logging purposes and auditing using a faithful copy of the
tree is important.

This becomes particularly significant when we start setting MNT_LOCKED
on rootfs to prevent it from being unmounted.

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