Updates to device drivers.

* Use I/O and DMA allocators.
* Use wait_event_interruptible instead of interrutiple_sleep_on.
* Added spinlocks SMP.
* Changed restore_flags to local_irq_restore etc.
* Updated IDE driver include to fit 2.6.12.

Signed-off-by: Mikael Starvik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds