[WIP PATCH] allow changing the password on remount in some cases

[Paulo Alcantara]

Shyam Prasad N <nspmangalore at gmail.com> writes:

> No major objections for this patch. While it may not cover all cases
> like DFS, multiuser etc., it's still a starting point to allowing
> users to change password on existing mounts without unmounting.

As long as it doesn't go through -stable and is accompanied with at
least a new option like 'forcenewcreds', should be fine.  Then you have
the next merge window to handle the missing cases and fix any problems.