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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:

--------
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.

/*======================================================================

    A driver for the Qlogic SCSI card

    qlogic_cs.c 1.79 2000/06/12 21:27:26

    The contents of this file are subject to the Mozilla Public
    License Version 1.1 (the "License"); you may not use this file
    except in compliance with the License. You may obtain a copy of
    the License at http://www.mozilla.org/MPL/

    Software distributed under the License is distributed on an "AS
    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
    implied. See the License for the specific language governing
    rights and limitations under the License.

    The initial developer of the original code is David A. Hinds
    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.

    Alternatively, the contents of this file may be used under the
    terms of the GNU General Public License version 2 (the "GPL"), in which
    case the provisions of the GPL are applicable instead of the
    above.  If you wish to allow the use of your version of this file
    only under the terms of the GPL and not to allow others to use
    your version of this file under the MPL, indicate your decision
    by deleting the provisions above and replace them with the notice
    and other provisions required by the GPL.  If you do not delete
    the provisions above, a recipient may use your version of this
    file under either the MPL or the GPL.
    
======================================================================*/

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <asm/io.h>
#include <scsi/scsi.h>
#include <linux/major.h>
#include <linux/blkdev.h>
#include <scsi/scsi_ioctl.h>
#include <linux/interrupt.h>

#include "scsi.h"
#include <scsi/scsi_host.h>
#include "../qlogicfas408.h"

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/ciscode.h>

/* Set the following to 2 to use normal interrupt (active high/totempole-
 * tristate), otherwise use 0 (REQUIRED FOR PCMCIA) for active low, open
 * drain
 */
#define INT_TYPE	0

static char qlogic_name[] = "qlogic_cs";

#ifdef PCMCIA_DEBUG
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0644);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
static char *version = "qlogic_cs.c 1.79-ac 2002/10/26 (David Hinds)";
#else
#define DEBUG(n, args...)
#endif

static struct scsi_host_template qlogicfas_driver_template = {
	.module			= THIS_MODULE,
	.name			= qlogic_name,
	.proc_name		= qlogic_name,
	.info			= qlogicfas408_info,
	.queuecommand		= qlogicfas408_queuecommand,
	.eh_abort_handler	= qlogicfas408_abort,
	.eh_bus_reset_handler	= qlogicfas408_bus_reset,
	.bios_param		= qlogicfas408_biosparam,
	.can_queue		= 1,
	.this_id		= -1,
	.sg_tablesize		= SG_ALL,
	.cmd_per_lun		= 1,
	.use_clustering		= DISABLE_CLUSTERING,
};

/*====================================================================*/

typedef struct scsi_info_t {
	struct pcmcia_device	*p_dev;
	dev_node_t node;
	struct Scsi_Host *host;
	unsigned short manf_id;
} scsi_info_t;

static void qlogic_release(struct pcmcia_device *link);
static void qlogic_detach(struct pcmcia_device *p_dev);
static int qlogic_config(struct pcmcia_device * link);

static struct Scsi_Host *qlogic_detect(struct scsi_host_template *host,
				struct pcmcia_device *link, int qbase, int qlirq)
{
	int qltyp;		/* type of chip */
	int qinitid;
	struct Scsi_Host *shost;	/* registered host structure */
	struct qlogicfas408_priv *priv;

	qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE);
	qinitid = host->this_id;
	if (qinitid < 0)
		qinitid = 7;	/* if no ID, use 7 */

	qlogicfas408_setup(qbase, qinitid, INT_TYPE);

	host->name = qlogic_name;
	shost = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv));
	if (!shost)
		goto err;
	shost->io_port = qbase;
	shost->n_io_port = 16;
	shost->dma_channel = -1;
	if (qlirq != -1)
		shost->irq = qlirq;

	priv = get_priv_by_host(shost);
	priv->qlirq = qlirq;
	priv->qbase = qbase;
	priv->qinitid = qinitid;
	priv->shost = shost;
	priv->int_type = INT_TYPE;					

	if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogic_name, shost))
		goto free_scsi_host;

	sprintf(priv->qinfo,
		"Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d",
		qltyp, qbase, qlirq, QL_TURBO_PDMA);

	if (scsi_add_host(shost, NULL))
		goto free_interrupt;

	scsi_scan_host(shost);

	return shost;

free_interrupt:
	free_irq(qlirq, shost);

free_scsi_host:
	scsi_host_put(shost);
	
err:
	return NULL;
}
static int qlogic_probe(struct pcmcia_device *link)
{
	scsi_info_t *info;

	DEBUG(0, "qlogic_attach()\n");

	/* Create new SCSI device */
	info = kzalloc(sizeof(*info), GFP_KERNEL);
	if (!info)
		return -ENOMEM;
	info->p_dev = link;
	link->priv = info;
	link->io.NumPorts1 = 16;
	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	link->io.IOAddrLines = 10;
	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
	link->conf.Attributes = CONF_ENABLE_IRQ;
	link->conf.IntType = INT_MEMORY_AND_IO;
	link->conf.Present = PRESENT_OPTION;

	return qlogic_config(link);
}				/* qlogic_attach */

/*====================================================================*/

static void qlogic_detach(struct pcmcia_device *link)
{
	DEBUG(0, "qlogic_detach(0x%p)\n", link);

	qlogic_release(link);
	kfree(link->priv);

}				/* qlogic_detach */

/*====================================================================*/

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

static int qlogic_config(struct pcmcia_device * link)
{
	scsi_info_t *info = link->priv;
	tuple_t tuple;
	cisparse_t parse;
	int i, last_ret, last_fn;
	unsigned short tuple_data[32];
	struct Scsi_Host *host;

	DEBUG(0, "qlogic_config(0x%p)\n", link);

	info->manf_id = link->manf_id;

	tuple.TupleData = (cisdata_t *) tuple_data;
	tuple.TupleDataMax = 64;
	tuple.TupleOffset = 0;

	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
	while (1) {
		if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
				pcmcia_parse_tuple(link, &tuple, &parse) != 0)
			goto next_entry;
		link->conf.ConfigIndex = parse.cftable_entry.index;
		link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
		link->io.NumPorts1 = parse.cftable_entry.io.win[0].len;
		if (link->io.BasePort1 != 0) {
			i = pcmcia_request_io(link, &link->io);
			if (i == CS_SUCCESS)
				break;
		}
	      next_entry:
		CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
	}

	CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));

	if ((info->manf_id == MANFID_MACNICA) || (info->manf_id == MANFID_PIONEER) || (info->manf_id == 0x0098)) {
		/* set ATAcmd */
		outb(0xb4, link->io.BasePort1 + 0xd);
		outb(0x24, link->io.BasePort1 + 0x9);
		outb(0x04, link->io.BasePort1 + 0xd);
	}

	/* The KXL-810AN has a bigger IO port window */
	if (link->io.NumPorts1 == 32)
		host = qlogic_detect(&qlogicfas_driver_template, link,
			link->io.BasePort1 + 16, link->irq.AssignedIRQ);
	else
		host = qlogic_detect(&qlogicfas_driver_template, link,
			link->io.BasePort1, link->irq.AssignedIRQ);
	
	if (!host) {
		printk(KERN_INFO "%s: no SCSI devices found\n", qlogic_name);
		goto cs_failed;
	}

	sprintf(info->node.dev_name, "scsi%d", host->host_no);
	link->dev_node = &info->node;
	info->host = host;

	return 0;

cs_failed:
	cs_error(link, last_fn, last_ret);
	pcmcia_disable_device(link);
	return -ENODEV;

}				/* qlogic_config */

/*====================================================================*/

static void qlogic_release(struct pcmcia_device *link)
{
	scsi_info_t *info = link->priv;

	DEBUG(0, "qlogic_release(0x%p)\n", link);

	scsi_remove_host(info->host);

	free_irq(link->irq.AssignedIRQ, info->host);
	pcmcia_disable_device(link);

	scsi_host_put(info->host);
}

/*====================================================================*/

static int qlogic_resume(struct pcmcia_device *link)
{
	scsi_info_t *info = link->priv;

	pcmcia_request_configuration(link, &link->conf);
	if ((info->manf_id == MANFID_MACNICA) ||
	    (info->manf_id == MANFID_PIONEER) ||
	    (info->manf_id == 0x0098)) {
		outb(0x80, link->io.BasePort1 + 0xd);
		outb(0x24, link->io.BasePort1 + 0x9);
		outb(0x04, link->io.BasePort1 + 0xd);
	}
	/* Ugggglllyyyy!!! */
	qlogicfas408_bus_reset(NULL);

	return 0;
}

static struct pcmcia_device_id qlogic_ids[] = {
	PCMCIA_DEVICE_PROD_ID12("EIger Labs", "PCMCIA-to-SCSI Adapter", 0x88395fa7, 0x33b7a5e6),
	PCMCIA_DEVICE_PROD_ID12("EPSON", "SCSI-2 PC Card SC200", 0xd361772f, 0x299d1751),
	PCMCIA_DEVICE_PROD_ID12("MACNICA", "MIRACLE SCSI-II mPS110", 0x20841b68, 0xab3c3b6d),
	PCMCIA_DEVICE_PROD_ID12("MIDORI ELECTRONICS ", "CN-SC43", 0x6534382a, 0xd67eee79),
	PCMCIA_DEVICE_PROD_ID12("NEC", "PC-9801N-J03R", 0x18df0ba0, 0x24662e8a),
	PCMCIA_DEVICE_PROD_ID12("KME ", "KXLC003", 0x82375a27, 0xf68e5bf7),
	PCMCIA_DEVICE_PROD_ID12("KME ", "KXLC004", 0x82375a27, 0x68eace54),
	PCMCIA_DEVICE_PROD_ID12("KME", "KXLC101", 0x3faee676, 0x194250ec),
	PCMCIA_DEVICE_PROD_ID12("QLOGIC CORPORATION", "pc05", 0xd77b2930, 0xa85b2735),
	PCMCIA_DEVICE_PROD_ID12("QLOGIC CORPORATION", "pc05 rev 1.10", 0xd77b2930, 0x70f8b5f8),
	PCMCIA_DEVICE_PROD_ID123("KME", "KXLC002", "00", 0x3faee676, 0x81896b61, 0xf99f065f),
	PCMCIA_DEVICE_PROD_ID12("RATOC System Inc.", "SCSI2 CARD 37", 0x85c10e17, 0x1a2640c1),
	PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "SCSC200A PC CARD SCSI", 0xb4585a1a, 0xa6f06ebe),
	PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "SCSC200B PC CARD SCSI-10", 0xb4585a1a, 0x0a88dea0),
	/* these conflict with other cards! */
	/* PCMCIA_DEVICE_PROD_ID123("MACNICA", "MIRACLE SCSI", "mPS100", 0x20841b68, 0xf8dedaeb, 0x89f7fafb), */
	/* PCMCIA_DEVICE_PROD_ID123("MACNICA", "MIRACLE SCSI", "mPS100", 0x20841b68, 0xf8dedaeb, 0x89f7fafb), */
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, qlogic_ids);

static struct pcmcia_driver qlogic_cs_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
	.name		= "qlogic_cs",
	},
	.probe		= qlogic_probe,
	.remove		= qlogic_detach,
	.id_table       = qlogic_ids,
	.resume		= qlogic_resume,
};

static int __init init_qlogic_cs(void)
{
	return pcmcia_register_driver(&qlogic_cs_driver);
}

static void __exit exit_qlogic_cs(void)
{
	pcmcia_unregister_driver(&qlogic_cs_driver);
}

MODULE_AUTHOR("Tom Zerucha, Michael Griffith");
MODULE_DESCRIPTION("Driver for the PCMCIA Qlogic FAS SCSI controllers");
MODULE_LICENSE("GPL");
module_init(init_qlogic_cs);
module_exit(exit_qlogic_cs);