Bug#694624: /usr/sbin/xfs_freeze: freezes under lying (root)

[Pat Emblen <support@xxxxxxxxxxxxxxxx>]

Well it's your call, but I'll make my case for changing it.
- I think it is very dangerous default behaviour, particularly in 
scripts as it can prevent
the possibility of logging in to unfreeze a frozen root.
- The docs all strongly imply that it operates on mountpoints, so surely 
not many people
would have diliberately used it on general paths?"
        xfs_freeze -f | -u mount-point"
"The mount-point argument is the pathname of  the  directory  where  the
       file system  is  mounted."
- Because of the name and the wording of the man page, you don't expect 
xfs_freeze to
freeze an ext4 file system that isn't even mounted on the path you pass 
to it?!
- It's logical to have it work on mountpoints only. You wouldn't expect 
umount or fdisk to
work the same way? Do any other partition level tools work this way?
- At the very least I would expect it to require a 'force' option if it 
was going to freeze
the root system.

Thanks.