Make x86-64 compile again.

Fix warnings on compilers that support -Wdeclaration-after-statement
in the x86-64 specific code. x86-64 was happily using ISO-C99 code
before because it only uses gcc 3+ which is ISO-C99 compliant, but
unfortunately this warning was added in the top level Makefile.

From Bryan O'Sullivan.

Reserve vserver syscall on x86-64 too.

From:  Marcel Sebek <sebek64@post.cz>

From:  Adrian Bunk <bunk@fs.tum.de>

(Acked by Christoph Hellwig <hch@infradead.org>)

From:  krishnakumar@naturesoft.net

From:  Pavel Machek <pavel@suse.cz>

From:  Maciej Soltysiak <solt@dns.toxicfilms.tv>

From:  Adrian Bunk <bunk@fs.tum.de>

From:  "Perez-Gonzalez, Inaky" <inaky.perez-gonzalez@intel.com>

From:  Adrian Bunk <bunk@fs.tum.de>

From:  Petri Koistinen <petri.koistinen@iki.fi>

From:  krishnakumar@naturesoft.net

From:  Scharfe <l.s.r@web.de>

From:  Ed L Cashin <ecashin@uga.edu>

(Acked by Kanoj Sarcar <kanojsarcar@yahoo.com>)

From:  Josef Jeff Sipek <jeffpc@optonline.net>

From:  Vinay K Nallamothu <vinay-rc@naturesoft.net>

From:  Nicolas Kaiser <nikai@nikai.net>

From:  <adobriyan@mail.ru>

From:  <adobriyan@mail.ru>

(Acked by William Lee Irwin III <wli@holomorphy.com>)

From:  "ismail (cartman) donmez" <kde@myrealbox.com>

From:  Petri Koistinen <petri.koistinen@iki.fi>

From:  Scharfe <l.s.r@web.de>

The sysvfs code was confusing. Rewrite it to be readable, and
use the existing VFS helper for recalculating the hash instead
of doing it all by hand.

From:  Petri Koistinen <petri.koistinen@iki.fi>

From:  Mitchell Blank Jr <mitch@sfgoth.com>

Make some more of the hlist functions accept constant arguments.

From:  Stewart Smith <stewart@linux.org.au>

Document "---help---" tag in Kconfig

(Acked by Roman Zippel <zippel@linux-m68k.org>)

From:  Maciej Soltysiak <solt@dns.toxicfilms.tv>

  This changes the hugetlbfs examples actually being possible to
  compile. errno is being used while it's not included.

(Acked by William Lee Irwin III <wli@holomorphy.com>)

From:  Marcel Sebek <sebek64@post.cz>

(Acked by  William Lee Irwin III <wli@holomorphy.com>)

From:  Holger Schurig <h.schurig@mn-logistik.de>

From:  Pavel Machek <pavel@suse.cz>

From:  Josef Jeff Sipek <jeffpc@optonline.net>

From:  Scharfe <l.s.r@web.de>

  clean up the error handling in pipefs a little bit,
  shrinking pipe.o by whopping 4 bytes! :)

From:  Mitchell Blank Jr <mitch@sfgoth.com>

  Obvious typo fix for the scheduler docs

(Acked by Ingo)

From:  Bob Miller <rem@osdl.org>

  Removed the check_mem_region() call and replaced with request_mem_region().

From:  Tom Rini <trini@kernel.crashing.org>

  This removes two extra #includes of <linux/spinlock.h>.
  Nothing in either of these files require <linux/spinlock.h>.

From:  Vinay K Nallamothu <vinay-rc@naturesoft.net>

From:  Jeff Sipek <jeffpc@optonline.net>

into home.osdl.org:/home/torvalds/v2.5/linux

From: "V. Rajesh" <vrajesh@eecs.umich.edu>

Fix a rare pte_chain memory leak in do_no_page()

A little fix which is needed if both the "compat ioctl consolidation" and
"move job control fields from task_struct to signal_struct" patches are
applied.