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Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

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commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

/* lasi_82596.c -- driver for the intel 82596 ethernet controller, as
   munged into HPPA boxen .

   This driver is based upon 82596.c, original credits are below...
   but there were too many hoops which HP wants jumped through to
   keep this code in there in a sane manner.

   3 primary sources of the mess --
   1) hppa needs *lots* of cacheline flushing to keep this kind of
   MMIO running.

   2) The 82596 needs to see all of its pointers as their physical
   address.  Thus virt_to_bus/bus_to_virt are *everywhere*.

   3) The implementation HP is using seems to be significantly pickier
   about when and how the command and RX units are started.  some
   command ordering was changed.

   Examination of the mach driver leads one to believe that there
   might be a saner way to pull this off...  anyone who feels like a
   full rewrite can be my guest.

   Split 02/13/2000 Sam Creasey (sammy@oh.verio.com)

   02/01/2000  Initial modifications for parisc by Helge Deller (deller@gmx.de)
   03/02/2000  changes for better/correct(?) cache-flushing (deller)
*/

/* 82596.c: A generic 82596 ethernet driver for linux. */
/*
   Based on Apricot.c
   Written 1994 by Mark Evans.
   This driver is for the Apricot 82596 bus-master interface

   Modularised 12/94 Mark Evans


   Modified to support the 82596 ethernet chips on 680x0 VME boards.
   by Richard Hirst <richard@sleepie.demon.co.uk>
   Renamed to be 82596.c

   980825:  Changed to receive directly in to sk_buffs which are
   allocated at open() time.  Eliminates copy on incoming frames
   (small ones are still copied).  Shared data now held in a
   non-cached page, so we can run on 68060 in copyback mode.

   TBD:
   * look at deferring rx frames rather than discarding (as per tulip)
   * handle tx ring full as per tulip
   * performace test to tune rx_copybreak

   Most of my modifications relate to the braindead big-endian
   implementation by Intel.  When the i596 is operating in
   'big-endian' mode, it thinks a 32 bit value of 0x12345678
   should be stored as 0x56781234.  This is a real pain, when
   you have linked lists which are shared by the 680x0 and the
   i596.

   Driver skeleton
   Written 1993 by Donald Becker.
   Copyright 1993 United States Government as represented by the Director,
   National Security Agency. This software may only be used and distributed
   according to the terms of the GNU General Public License as modified by SRC,
   incorporated herein by reference.

   The author may be reached as becker@scyld.com, or C/O
   Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403

 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/dma-mapping.h>

#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pdc.h>
#include <asm/parisc-device.h>

#define LASI_82596_DRIVER_VERSION "LASI 82596 driver - Revision: 1.30"

#define PA_I82596_RESET		0	/* Offsets relative to LASI-LAN-Addr.*/
#define PA_CPU_PORT_L_ACCESS	4
#define PA_CHANNEL_ATTENTION	8

#define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */

#define DMA_ALLOC                        dma_alloc_noncoherent
#define DMA_FREE                         dma_free_noncoherent
#define DMA_WBACK(ndev, addr, len) \
	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_TO_DEVICE); } while (0)

#define DMA_INV(ndev, addr, len) \
	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_FROM_DEVICE); } while (0)

#define DMA_WBACK_INV(ndev, addr, len) \
	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_BIDIRECTIONAL); } while (0)

#define SYSBUS      0x0000006c;

/* big endian CPU, 82596 "big" endian mode */
#define SWAP32(x)   (((u32)(x)<<16) | ((((u32)(x)))>>16))
#define SWAP16(x)   (x)

#include "lib82596.c"

MODULE_AUTHOR("Richard Hirst");
MODULE_DESCRIPTION("i82596 driver");
MODULE_LICENSE("GPL");
module_param(i596_debug, int, 0);
MODULE_PARM_DESC(i596_debug, "lasi_82596 debug mask");

static inline void ca(struct net_device *dev)
{
	gsc_writel(0, dev->base_addr + PA_CHANNEL_ATTENTION);
}


static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
{
	struct i596_private *lp = netdev_priv(dev);

	u32 v = (u32) (c) | (u32) (x);
	u16 a, b;

	if (lp->options & OPT_SWAP_PORT) {
		a = v >> 16;
		b = v & 0xffff;
	} else {
		a = v & 0xffff;
		b = v >> 16;
	}

	gsc_writel(a, dev->base_addr + PA_CPU_PORT_L_ACCESS);
	udelay(1);
	gsc_writel(b, dev->base_addr + PA_CPU_PORT_L_ACCESS);
}

#define LAN_PROM_ADDR	0xF0810000

static int __devinit
lan_init_chip(struct parisc_device *dev)
{
	struct	net_device *netdevice;
	struct i596_private *lp;
	int	retval;
	int i;

	if (!dev->irq) {
		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
			__FILE__, dev->hpa.start);
		return -ENODEV;
	}

	printk(KERN_INFO "Found i82596 at 0x%lx, IRQ %d\n", dev->hpa.start,
			dev->irq);

	netdevice = alloc_etherdev(sizeof(struct i596_private));
	if (!netdevice)
		return -ENOMEM;
	SET_NETDEV_DEV(netdevice, &dev->dev);
	parisc_set_drvdata (dev, netdevice);

	netdevice->base_addr = dev->hpa.start;
	netdevice->irq = dev->irq;

	if (pdc_lan_station_id(netdevice->dev_addr, netdevice->base_addr)) {
		for (i = 0; i < 6; i++) {
			netdevice->dev_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
		}
		printk(KERN_INFO
		       "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
	}

	lp = netdev_priv(netdevice);
	lp->options = dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0;

	retval = i82596_probe(netdevice);
	if (retval) {
		free_netdev(netdevice);
		return -ENODEV;
	}
	return retval;
}

static int __devexit lan_remove_chip (struct parisc_device *pdev)
{
	struct net_device *dev = parisc_get_drvdata(pdev);
	struct i596_private *lp = netdev_priv(dev);

	unregister_netdev (dev);
	DMA_FREE(&pdev->dev, sizeof(struct i596_private),
		 (void *)lp->dma, lp->dma_addr);
	free_netdev (dev);
	return 0;
}

static struct parisc_device_id lan_tbl[] = {
	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00072 },
	{ 0, }
};

MODULE_DEVICE_TABLE(parisc, lan_tbl);

static struct parisc_driver lan_driver = {
	.name		= "lasi_82596",
	.id_table	= lan_tbl,
	.probe		= lan_init_chip,
	.remove         = __devexit_p(lan_remove_chip),
};

static int __devinit lasi_82596_init(void)
{
	printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
	return register_parisc_driver(&lan_driver);
}

module_init(lasi_82596_init);

static void __exit lasi_82596_exit(void)
{
	unregister_parisc_driver(&lan_driver);
}

module_exit(lasi_82596_exit);