[PATCH] Initialise devfs_name in various block drivers

[PATCH] Initialise devfs_name in various block drivers

From: Andrey Borzenkov <arvidjaar@mail.ru>

Various block drivers are currently devfs-unaware.  Andrey's patch attempts
to give them reasonable representations in devfs.

 "The attached patch suggests some possible names for non-floppy devices
  based on reading driver source.  I have to ask if these make sense.  At
  least for cciss Mandrake devfsd patch expects different names but it
  seems to be mistake (it assumes single controller always)

 "For floppy it is not as simple.  Floppy cannot use genhd and must
  create names manually; but I do not know what names are appropriate or
  expected.

 "For acsi the target/lun name may have problem of creating compat names
  (if any) by devfsd.

 "Please note that none of them created any devfs name under 2.4 as well.
   So it is not a regression ..."