Update hotplug and pcmcia drivers to the new IRQ API.

allocate FIRST_SYSTEM_VECTOR as an external interrupt. It's unlikely,
but could happen if we have a _ton_ of interrupt sources.

Found by Chuck Ebbert.

This is a patch from Robert P.J. Day that replaces www.linuxdoc.org
(which is outdated and unspported according to www.tldp.org)
with www.tldp.org in lots of Kconfig files.

into home.transmeta.com:/home/torvalds/v2.5/linux

Also pointed out by Al.

Al pointed out that it's unused after my last series of devfs patches.

All callers of __blk_run_queue are of the form

	spin_lock_irqsave(q->queue_lock, flags);
	__blk_run_queue(q);
	spin_unlock_irqrestore(q->queue_lock, flags);

Replace it with a blk_run_queue that does the locking itself.

In preparation of getting rid of the LOCAL_END_REQUEST mess.

split the initrd stuff out of blk.h, it's only needed in the boot code
and the ramdisk driver.

into home.transmeta.com:/home/torvalds/v2.5/linux

or not.