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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.

/*
 *  linux/drivers/message/fusion/mptscsih.h
 *      High performance SCSI / Fibre Channel SCSI Host device driver.
 *      For use with PCI chip/adapter(s):
 *          LSIFC9xx/LSI409xx Fibre Channel
 *      running LSI Logic Fusion MPT (Message Passing Technology) firmware.
 *
 *  Copyright (c) 1999-2007 LSI Logic Corporation
 *  (mailto:DL-MPTFusionLinux@lsi.com)
 *
 */
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; version 2 of the License.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    NO WARRANTY
    THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
    CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
    LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
    solely responsible for determining the appropriateness of using and
    distributing the Program and assumes all risks associated with its
    exercise of rights under this Agreement, including but not limited to
    the risks and costs of program errors, damage to or loss of data,
    programs or equipment, and unavailability or interruption of operations.

    DISCLAIMER OF LIABILITY
    NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
    USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
    HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef SCSIHOST_H_INCLUDED
#define SCSIHOST_H_INCLUDED

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	SCSI Public stuff...
 */

#define MPT_SCANDV_GOOD			(0x00000000) /* must be 0 */
#define MPT_SCANDV_DID_RESET		(0x00000001)
#define MPT_SCANDV_SENSE		(0x00000002)
#define MPT_SCANDV_SOME_ERROR		(0x00000004)
#define MPT_SCANDV_SELECTION_TIMEOUT	(0x00000008)
#define MPT_SCANDV_ISSUE_SENSE		(0x00000010)
#define MPT_SCANDV_FALLBACK		(0x00000020)

#define MPT_SCANDV_MAX_RETRIES		(10)

#define MPT_ICFLAG_BUF_CAP	0x01	/* ReadBuffer Read Capacity format */
#define MPT_ICFLAG_ECHO		0x02	/* ReadBuffer Echo buffer format */
#define MPT_ICFLAG_EBOS		0x04	/* ReadBuffer Echo buffer has EBOS */
#define MPT_ICFLAG_PHYS_DISK	0x08	/* Any SCSI IO but do Phys Disk Format */
#define MPT_ICFLAG_TAGGED_CMD	0x10	/* Do tagged IO */
#define MPT_ICFLAG_DID_RESET	0x20	/* Bus Reset occurred with this command */
#define MPT_ICFLAG_RESERVED	0x40	/* Reserved has been issued */

#define MPT_SCSI_CMD_PER_DEV_HIGH	64
#define MPT_SCSI_CMD_PER_DEV_LOW	32

#define MPT_SCSI_CMD_PER_LUN		7

#define MPT_SCSI_MAX_SECTORS    8192

/* SCSI driver setup structure. Settings can be overridden
 * by command line options.
 */
#define MPTSCSIH_DOMAIN_VALIDATION      1
#define MPTSCSIH_MAX_WIDTH              1
#define MPTSCSIH_MIN_SYNC               0x08
#define MPTSCSIH_SAF_TE                 0
#define MPTSCSIH_PT_CLEAR               0

#endif

typedef struct _internal_cmd {
	char		*data;		/* data pointer */
	dma_addr_t	data_dma;	/* data dma address */
	int		size;		/* transfer size */
	u8		cmd;		/* SCSI Op Code */
	u8		channel;	/* bus number */
	u8		id;		/* SCSI ID (virtual) */
	int		lun;
	u8		flags;		/* Bit Field - See above */
	u8		physDiskNum;	/* Phys disk number, -1 else */
	u8		rsvd2;
	u8		rsvd;
} INTERNAL_CMD;

extern void mptscsih_remove(struct pci_dev *);
extern void mptscsih_shutdown(struct pci_dev *);
#ifdef CONFIG_PM
extern int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
extern int mptscsih_resume(struct pci_dev *pdev);
#endif
extern int mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int func);
extern const char * mptscsih_info(struct Scsi_Host *SChost);
extern int mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *));
extern void mptscsih_slave_destroy(struct scsi_device *device);
extern int mptscsih_slave_configure(struct scsi_device *device);
extern int mptscsih_abort(struct scsi_cmnd * SCpnt);
extern int mptscsih_dev_reset(struct scsi_cmnd * SCpnt);
extern int mptscsih_bus_reset(struct scsi_cmnd * SCpnt);
extern int mptscsih_host_reset(struct scsi_cmnd *SCpnt);
extern int mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, sector_t capacity, int geom[]);
extern int mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
extern int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
extern int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
extern int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
extern int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
extern void mptscsih_timer_expired(unsigned long data);
extern int mptscsih_TMHandler(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, int ctx2abort, ulong timeout);
extern u8 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id);
extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id);
extern struct class_device_attribute *mptscsih_host_attrs[];