[ros-kernel] Need help with the file system mounting code!

[Eric K. <ek...@rz...>]

Hi!

I'm currently working on the removable-media-support. One major problem is
that filesystem drivers must not be attached to the logical volume (drive)
device objects. They have to be linked to them via the VPB instead. This way
the link can be removed and reestablished when a media-change happens.

I have changed the mounting code in the vfatfs driver, so that the
filesystem object is correctly registered in the VPB. I also changed
IopCreateFile() (in ntoskrnl/io/create.c) to use the filesystem object
instead of the top-level device object when a volume is mounted. After
replacing the call to IoAttachDeviceToDeviceStack() by a call to
IoGetAttachedDevice() in the vfat mounting code, the system freezes. It seem
there are more places that need to be fixed. I had a look a every call to
IoGetAttachedDevice() but IMO none of the calls needs to be changed. What am
I missing?


Btw, I could reflash both damaged BIOS flash proms. Both machines are
working again. Thanks to the IOSS Bios Saver! :-)


Eric