Still not safe (we use __MOD_INC_USE_COUNT in paride.c; old code has
MOD_INC_USE_COUNT in protocol drivers), but that takes crap in one
place.

	->owner added
	paride.c grabs/releases it if if present
	->proto_init() became empty for almost everything
	->proto_release() <<--->>
	->proto_init() returns int now (the only case where we do have a
	  non-empty ->proto_init() needed that all along).  paride.c
	  taught to deal with that.

somewhat related to the above - drivers/block/paride/* switched to
module_init()/module_exit(), pd.c taught to use LBA if disks support
it (needed for paride disks >8Gb; change is fairly trivial and I've
got 40Gb one ;-)

Trivial patch update against 2.5.17:
johnpol@2ka.mipt.ru: 21) request_region check, 21-30:
  here is one more trivial check.

  So please test and apply.

  	Evgeniy Polyakov ( s0mbre )

Before this changed we relied on the fact that due to missing
EXPORT_SYMBOL() all symbols would be exported.

  - Trond Myklebust: deadlock checking in lockd server
  - Tim Waugh: fix up parport wrong #define
  - Christoph Hellwig: i2c update, ext2 cleanup
  - Al Viro: fix partition handling sanity check.
  - Trond Myklebust: make NFS use SLAB_NOFS, and not play games with PF_MEMALLOC
  - Ben Fennema: UDF update
  - Alan Cox: continued merging
  - Chris Mason: get /proc buffer memory sizes right after buf-in-page-cache

  - various: fix some module exports uncovered by stricter error checking
  - Urban Widmark: make smbfs use same error define names as samba and win32
  - Greg KH: USB update
  - Tom Rini: MPC8xx ppc update
  - Matthew Wilcox: rd.c page cache flushing fix
  - Richard Gooch: devfs race fix: rwsem for symlinks
  - Björn Wesen: Cris arch update
  - Nikita Danilov: reiserfs cleanup
  - Tim Waugh: parport update
  - Peter Rival: update alpha SMP bootup to match wait_init_idle fixes
  - Trond Myklebust: lockd/grace period fix

  - Bob Tracy: Cyrix MTRR setup fix (don't make it twice as big as asked
  for)
  - Trond Myklebust: rpciod needs to be PF_MEMALLOC to avoid deadlocks on
  memory allocation when writing out NFS data under low memory conditions.
  Fix up BKL and RPC interactions.
  - Jeff Garzik: tulip network driver update
  - fix truncate to call down to the filesystem with the kernel lock.
  - David Mosberger: ia64 update
  - David Mosberger: simplify ELF program header generation.
  - Alan Cox: merge from -ac series
  - Jeff Garzik: make serial.c recognize modem devices properly

  - driver sync up with Alan
  - Andrew Morton: wakeup cleanup and race fix
  - Paul Mackerras: macintosh driver updates.
  - don't trust "page_count()" on reserved pages!
  - Russell King: fix serious IDE multimode write bug!
  - me, Jens, others: fix elevator problem
  - ARM, MIPS and cris architecture updates
  - alpha updates: better page clear/copy, avoid kernel lock in execve
  - USB and firewire updates
  - ISDN updates
  - Irda updates