[FASTFAT]
On the road for getting rid of IopParseDevice() hack....
- Add support for FSCTL_LOCK_VOLUME, FSCTL_UNLOCK_VOLUME, FSCTL_DISMOUNT_VOLUME in VfatFileSystemControl()
- Implement VfatLockOrUnlockVolume(). This brings some kind of volume locking to FastFAT FSD. It's likely not fully accurate and welcome to race conditions. But, its main purpose is to be used in usetup. So, this is fine for now.
- Stubplement VfatDismountVolume(). This will be implemented later on, but should be relatively straightforward as it requires volume to be locked (so, we're the last ones on it :-)).
svn path=/trunk/; revision=65129