It could be negative.

This is the other part of the missing bits of the compat_ptr patch
pointed out to me by Andrew Morton and Dave Miller. This is just
the architectures I have permission to send you.  Dave has sent you
his own already.

FYI, I have gotten some most strange results with the equivalent of:

     request_queue_t *q = kmalloc(...);
     blk_init_queue(q, ...)

The problem turns out to be that q->backing_dev_info.memory_backed is not
initialized, leaving it to be whatever was there before.  The end result is
that my "driver" never saw write requests, but reads came through fine.
Took a while to figure out that one...

Here's the fix, for what it's worth.  (I had, BTW, tried just zeroing the
whole structure in blk_init_queue(), but that makes IDE oops at boot - it
sets q->queuedata early).

This is a pure identity cleanup:

 - coding style fixes (whitespace, code, comment, line length cleanups)
 - remove dead code
 - simplify constructs, make code more readable

asm-generic/tlb.h needs swap.h for free_page_and_swap_cache().

Avoid a bunch of non-NULL first arguments.

All arguments except the name are unused - remove them and make the
name printf-like to avoid a few snprintf in the surrounding code.

(also fixes compilation to due a superflous endif in dvb core)

Needed to get the only callder of devfs_mk_dir where the first argument
is not NULL back in shape.  Also a nice code cleanup..

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

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

Sorry about that Linus.

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

This creates compat_uptr_t (to represent a user mode pointer passed to
the kernel other than as a syscall parameter) and compat_ptr() to
convert it to a kernel pointer. 

This fixes a couple of bugs in s390x (where the conversion of pointers
actually does something). 

Convert remaining register_pcmcia_driver users to use the new
pcmcia_register_driver interfaces.

swap.h is basically the header for MM internals instead of the
public API (mm_internal.h would have been a better name..).  Stop
including it in mm.h - this only needs moving one function that
should be in swap.h anyway to the right place and fixing up a bunch
of places using it.

Always pass the input/ prefix to input_register_minor instead of using
the first argument to devfs_register

All devfs_mk_symlink arguments except the from and to strings are
unused.  Bring the prototype in shape.

It was good to see the syscall return value types being fixed but still
some cases are missing.  I attach a patch which fixes at least those
which cause problems to me in the moment.

- uninitialised var warning in pci_update_resource

- fix jiffy comparison type warnings in parport_pc.c

parport_register_port() does spin_lock_irq() then spin_unlock().

This causes the IDE code to mysteriously go BUG_ON(irqs_disabled()) in a
later initcall.

Three varients of the NFSD system call use __kernel_* types in defining
the arg, which is bad: these types should not be exposed to userspace.

Particularly as __kernel_dev_t might change soon.

Two of the varients, getfh and uidmap, are not implemented, getfh is
deprecated and uidmap never was and never will be implemented.

This patch removes (almost) all trace of these two varients, including
all the 32bit-compat system call translators for various 64bit
platforms.

The third varient that uses __kernel_* types, export, is not so easy to
deal with, so it will be kept for later.

Fix the IDE hang people see with 2.5.65-bk

From Dominik Brodowski <linux@brodo.de>

PC9800 uses the ISAPnP protocol but on CBUS not ISA bus. The
current patch is below. I'm wondering if there is a cleaner way we
should do this ?