This patch changes network devices to run hotplug out of the
kobject/class_device infrastructure rather than calling it
from the network code.  The code gets simpler and there is
only one place for Greg to fix when he changes the API.

All hotplug now happens off the chain:
     rtnl_unlock -> netdev_run_todo -> netdev_sysfs_{un}register

The state flag deadbeef was converted to a state enumeration tp
handle necessary book keeping, and adds some defense against
drivers that have unexpected semantics.

into nuts.ninka.net:/home/davem/src/BK/net-2.5

Patch by Matthew Wilcox.

Allows all architectures to simply include the drivers/ide/Kconfig file.

Patch by Benjamin Herrenschmidt, minor fixes by me.

Unexpectedly there are some taskfile IO bugreports,
so bring back old code and add taskfile IO config option (default y).
This aids testing and lets people use safe(?) old code.

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

From: Manfred Spraul <manfred@colorfullife.com>

Martin found out what caused the deadlocks with 2.5.70 and SDET: I forgot
to initialize proc_lock during fork().  Usually this works, because the
parent lock is unlocked.  But a proc lookup during fork can cause it to be
locked, and then the system locks up.

1) Fix the comments for the migration_thread.  A while back Ingo
   agreed they were exactly wrong, IIRC. 8).

2) Changed spin_lock_irqsave to spin_lock_irq, since it's in a
   kernel thread.

3) Don't repeat if the task has moved off the original CPU, just finish.
   This is because we are simply trying to push the task off this CPU:
   if it's already moved, great.  Currently we might theoretically move
   a task which is actually running on another CPU, which is v. bad.

4) Replace the __ffs(p->cpus_allowed) with any_online_cpu(), since
   that's what it's for, and __ffs() can give the wrong answer, eg. if
   there's no CPU 0.

5) Move the core functionality of migrate_task into a separate function,
   move_task_away, which I want for the hotplug CPU patch.

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

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

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

It was broken on at least ppc32 & sparc32, and the debugging it
offered wasn't worth it any more anyway.

local_irq_save() is called at the beginning of speedstep_detect_speeds,
but local_irq_restore() is not called on I/O errors.