Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

44 files changed, 903 insertions, 1060 deletions

diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 742d0740310..8d81a3a64c0 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -324,13 +324,13 @@ static boolean DAC960_CreateAuxiliaryStructures(DAC960_Controller_T *Controller)
       Command->Next = Controller->FreeCommands;
       Controller->FreeCommands = Command;
       Controller->Commands[CommandIdentifier-1] = Command;
-      ScatterGatherCPU = pci_pool_alloc(ScatterGatherPool, SLAB_ATOMIC,
+      ScatterGatherCPU = pci_pool_alloc(ScatterGatherPool, GFP_ATOMIC,
 							&ScatterGatherDMA);
       if (ScatterGatherCPU == NULL)
 	  return DAC960_Failure(Controller, "AUXILIARY STRUCTURE CREATION");
 
       if (RequestSensePool != NULL) {
-  	  RequestSenseCPU = pci_pool_alloc(RequestSensePool, SLAB_ATOMIC,
+  	  RequestSenseCPU = pci_pool_alloc(RequestSensePool, GFP_ATOMIC,
 						&RequestSenseDMA);
   	  if (RequestSenseCPU == NULL) {
                 pci_pool_free(ScatterGatherPool, ScatterGatherCPU,
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 17dc22282e1..58c1debf86f 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -28,13 +28,6 @@ config ATARI_FLOPPY
 	tristate "Atari floppy support"
 	depends on ATARI
 
-config BLK_DEV_SWIM_IOP
-	bool "Macintosh IIfx/Quadra 900/Quadra 950 floppy support (EXPERIMENTAL)"
-	depends on MAC && EXPERIMENTAL && BROKEN
-	help
-	  Say Y here to support the SWIM (Super Woz Integrated Machine) IOP
-	  floppy controller on the Macintosh IIfx and Quadra 900/950.
-
 config MAC_FLOPPY
 	tristate "Support for PowerMac floppy"
 	depends on PPC_PMAC && !PPC_PMAC64
@@ -168,7 +161,8 @@ config BLK_CPQ_CISS_DA
 
 config CISS_SCSI_TAPE
 	bool "SCSI tape drive support for Smart Array 5xxx"
-	depends on BLK_CPQ_CISS_DA && SCSI && PROC_FS
+	depends on BLK_CPQ_CISS_DA && PROC_FS
+	depends on SCSI=y || SCSI=BLK_CPQ_CISS_DA
 	help
 	  When enabled (Y), this option allows SCSI tape drives and SCSI medium
 	  changers (tape robots) to be accessed via a Compaq 5xxx array 
@@ -305,6 +299,7 @@ config BLK_DEV_LOOP
 config BLK_DEV_CRYPTOLOOP
 	tristate "Cryptoloop Support"
 	select CRYPTO
+	select CRYPTO_CBC
 	depends on BLK_DEV_LOOP
 	---help---
 	  Say Y here if you want to be able to use the ciphers that are 
@@ -429,14 +424,18 @@ config CDROM_PKTCDVD
 	tristate "Packet writing on CD/DVD media"
 	depends on !UML
 	help
-	  If you have a CDROM drive that supports packet writing, say Y to
-	  include preliminary support. It should work with any MMC/Mt Fuji
-	  compliant ATAPI or SCSI drive, which is just about any newer CD
-	  writer.
+	  If you have a CDROM/DVD drive that supports packet writing, say
+	  Y to include support. It should work with any MMC/Mt Fuji
+	  compliant ATAPI or SCSI drive, which is just about any newer
+	  DVD/CD writer.
 
-	  Currently only writing to CD-RW, DVD-RW and DVD+RW discs is possible.
+	  Currently only writing to CD-RW, DVD-RW, DVD+RW and DVDRAM discs
+	  is possible.
 	  DVD-RW disks must be in restricted overwrite mode.
 
+	  See the file <file:Documentation/cdrom/packet-writing.txt>
+	  for further information on the use of this driver.
+
 	  To compile this driver as a module, choose M here: the
 	  module will be called pktcdvd.
 
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 410f259a803..dd88e33c1eb 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_MAC_FLOPPY)	+= swim3.o
 obj-$(CONFIG_BLK_DEV_FD)	+= floppy.o
 obj-$(CONFIG_AMIGA_FLOPPY)	+= amiflop.o
 obj-$(CONFIG_ATARI_FLOPPY)	+= ataflop.o
-obj-$(CONFIG_BLK_DEV_SWIM_IOP)	+= swim_iop.o
 obj-$(CONFIG_ATARI_ACSI)	+= acsi.o
 obj-$(CONFIG_ATARI_SLM)		+= acsi_slm.o
 obj-$(CONFIG_AMIGA_Z2RAM)	+= z2ram.o
diff --git a/drivers/block/acsi_slm.c b/drivers/block/acsi_slm.c
index 8e41c87b026..e04be94d195 100644
--- a/drivers/block/acsi_slm.c
+++ b/drivers/block/acsi_slm.c
@@ -363,7 +363,7 @@ static ssize_t slm_read( struct file *file, char *buf, size_t count,
 						 loff_t *ppos )
 
 {
-	struct inode *node = file->f_dentry->d_inode;
+	struct inode *node = file->f_path.dentry->d_inode;
 	unsigned long page;
 	int length;
 	int end;
@@ -618,7 +618,7 @@ static ssize_t slm_write( struct file *file, const char *buf, size_t count,
 						  loff_t *ppos )
 
 {
-	struct inode *node = file->f_dentry->d_inode;
+	struct inode *node = file->f_path.dentry->d_inode;
 	int		device = iminor(node);
 	int		n, filled, w, h;
 
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 6d111228cfa..2308e83e5f3 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -159,7 +159,7 @@ void aoecmd_work(struct aoedev *d);
 void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor);
 void aoecmd_ata_rsp(struct sk_buff *);
 void aoecmd_cfg_rsp(struct sk_buff *);
-void aoecmd_sleepwork(void *vp);
+void aoecmd_sleepwork(struct work_struct *);
 struct sk_buff *new_skb(ulong);
 
 int aoedev_init(void);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index aa25f8b09fe..478489c568a 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -12,7 +12,7 @@
 #include <linux/netdevice.h>
 #include "aoe.h"
 
-static kmem_cache_t *buf_pool_cache;
+static struct kmem_cache *buf_pool_cache;
 
 static ssize_t aoedisk_show_state(struct gendisk * disk, char *page)
 {
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 8a13b1af8ba..bb022ed4a86 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -30,8 +30,6 @@ new_skb(ulong len)
 		skb->nh.raw = skb->mac.raw = skb->data;
 		skb->protocol = __constant_htons(ETH_P_AOE);
 		skb->priority = 0;
-		skb_put(skb, len);
-		memset(skb->head, 0, len);
 		skb->next = skb->prev = NULL;
 
 		/* tell the network layer not to perform IP checksums
@@ -122,8 +120,8 @@ aoecmd_ata_rw(struct aoedev *d, struct frame *f)
 	skb = f->skb;
 	h = (struct aoe_hdr *) skb->mac.raw;
 	ah = (struct aoe_atahdr *) (h+1);
-	skb->len = sizeof *h + sizeof *ah;
-	memset(h, 0, ETH_ZLEN);
+	skb_put(skb, sizeof *h + sizeof *ah);
+	memset(h, 0, skb->len);
 	f->tag = aoehdr_atainit(d, h);
 	f->waited = 0;
 	f->buf = buf;
@@ -149,7 +147,6 @@ aoecmd_ata_rw(struct aoedev *d, struct frame *f)
 		skb->len += bcnt;
 		skb->data_len = bcnt;
 	} else {
-		skb->len = ETH_ZLEN;
 		writebit = 0;
 	}
 
@@ -206,6 +203,7 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
 			printk(KERN_INFO "aoe: skb alloc failure\n");
 			continue;
 		}
+		skb_put(skb, sizeof *h + sizeof *ch);
 		skb->dev = ifp;
 		if (sl_tail == NULL)
 			sl_tail = skb;
@@ -243,6 +241,7 @@ freeframe(struct aoedev *d)
 			continue;
 		if (atomic_read(&skb_shinfo(f->skb)->dataref) == 1) {
 			skb_shinfo(f->skb)->nr_frags = f->skb->data_len = 0;
+			skb_trim(f->skb, 0);
 			return f;
 		}
 		n++;
@@ -408,9 +407,9 @@ rexmit_timer(ulong vp)
 /* this function performs work that has been deferred until sleeping is OK
  */
 void
-aoecmd_sleepwork(void *vp)
+aoecmd_sleepwork(struct work_struct *work)
 {
-	struct aoedev *d = (struct aoedev *) vp;
+	struct aoedev *d = container_of(work, struct aoedev, work);
 
 	if (d->flags & DEVFL_GDALLOC)
 		aoeblk_gdalloc(d);
@@ -698,8 +697,8 @@ aoecmd_ata_id(struct aoedev *d)
 	skb = f->skb;
 	h = (struct aoe_hdr *) skb->mac.raw;
 	ah = (struct aoe_atahdr *) (h+1);
-	skb->len = ETH_ZLEN;
-	memset(h, 0, ETH_ZLEN);
+	skb_put(skb, sizeof *h + sizeof *ah);
+	memset(h, 0, skb->len);
 	f->tag = aoehdr_atainit(d, h);
 	f->waited = 0;
 
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index 6125921bbec..05a97197c91 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -88,7 +88,7 @@ aoedev_newdev(ulong nframes)
  			kfree(d);
 		return NULL;
 	}
-	INIT_WORK(&d->work, aoecmd_sleepwork, d);
+	INIT_WORK(&d->work, aoecmd_sleepwork);
 	spin_lock_init(&d->lock);
 	init_timer(&d->timer);
 	d->timer.data = (ulong) d;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 4105c3bf347..05dfe357527 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -47,14 +47,15 @@
 #include <linux/completion.h>
 
 #define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin))
-#define DRIVER_NAME "HP CISS Driver (v 3.6.10)"
-#define DRIVER_VERSION CCISS_DRIVER_VERSION(3,6,10)
+#define DRIVER_NAME "HP CISS Driver (v 3.6.14)"
+#define DRIVER_VERSION CCISS_DRIVER_VERSION(3,6,14)
 
 /* Embedded module documentation macros - see modules.h */
 MODULE_AUTHOR("Hewlett-Packard Company");
-MODULE_DESCRIPTION("Driver for HP Controller SA5xxx SA6xxx version 3.6.10");
+MODULE_DESCRIPTION("Driver for HP Controller SA5xxx SA6xxx version 3.6.14");
 MODULE_SUPPORTED_DEVICE("HP SA5i SA5i+ SA532 SA5300 SA5312 SA641 SA642 SA6400"
 			" SA6i P600 P800 P400 P400i E200 E200i E500");
+MODULE_VERSION("3.6.14");
 MODULE_LICENSE("GPL");
 
 #include "cciss_cmd.h"
@@ -81,7 +82,9 @@ static const struct pci_device_id cciss_pci_device_id[] = {
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSD,     0x103C, 0x3213},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSD,     0x103C, 0x3214},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSD,     0x103C, 0x3215},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSC,     0x103C, 0x3233},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSC,     0x103C, 0x3237},
+	{PCI_VENDOR_ID_HP,     PCI_ANY_ID,	PCI_ANY_ID, PCI_ANY_ID,
+		PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
 	{0,}
 };
 
@@ -90,27 +93,29 @@ MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
 /*  board_id = Subsystem Device ID & Vendor ID
  *  product = Marketing Name for the board
  *  access = Address of the struct of function pointers
+ *  nr_cmds = Number of commands supported by controller
  */
 static struct board_type products[] = {
-	{0x40700E11, "Smart Array 5300", &SA5_access},
-	{0x40800E11, "Smart Array 5i", &SA5B_access},
-	{0x40820E11, "Smart Array 532", &SA5B_access},
-	{0x40830E11, "Smart Array 5312", &SA5B_access},
-	{0x409A0E11, "Smart Array 641", &SA5_access},
-	{0x409B0E11, "Smart Array 642", &SA5_access},
-	{0x409C0E11, "Smart Array 6400", &SA5_access},
-	{0x409D0E11, "Smart Array 6400 EM", &SA5_access},
-	{0x40910E11, "Smart Array 6i", &SA5_access},
-	{0x3225103C, "Smart Array P600", &SA5_access},
-	{0x3223103C, "Smart Array P800", &SA5_access},
-	{0x3234103C, "Smart Array P400", &SA5_access},
-	{0x3235103C, "Smart Array P400i", &SA5_access},
-	{0x3211103C, "Smart Array E200i", &SA5_access},
-	{0x3212103C, "Smart Array E200", &SA5_access},
-	{0x3213103C, "Smart Array E200i", &SA5_access},
-	{0x3214103C, "Smart Array E200i", &SA5_access},
-	{0x3215103C, "Smart Array E200i", &SA5_access},
-	{0x3233103C, "Smart Array E500", &SA5_access},
+	{0x40700E11, "Smart Array 5300", &SA5_access, 512},
+	{0x40800E11, "Smart Array 5i", &SA5B_access, 512},
+	{0x40820E11, "Smart Array 532", &SA5B_access, 512},
+	{0x40830E11, "Smart Array 5312", &SA5B_access, 512},
+	{0x409A0E11, "Smart Array 641", &SA5_access, 512},
+	{0x409B0E11, "Smart Array 642", &SA5_access, 512},
+	{0x409C0E11, "Smart Array 6400", &SA5_access, 512},
+	{0x409D0E11, "Smart Array 6400 EM", &SA5_access, 512},
+	{0x40910E11, "Smart Array 6i", &SA5_access, 512},
+	{0x3225103C, "Smart Array P600", &SA5_access, 512},
+	{0x3223103C, "Smart Array P800", &SA5_access, 512},
+	{0x3234103C, "Smart Array P400", &SA5_access, 512},
+	{0x3235103C, "Smart Array P400i", &SA5_access, 512},
+	{0x3211103C, "Smart Array E200i", &SA5_access, 120},
+	{0x3212103C, "Smart Array E200", &SA5_access, 120},
+	{0x3213103C, "Smart Array E200i", &SA5_access, 120},
+	{0x3214103C, "Smart Array E200i", &SA5_access, 120},
+	{0x3215103C, "Smart Array E200i", &SA5_access, 120},
+	{0x3237103C, "Smart Array E500", &SA5_access, 512},
+	{0xFFFF103C, "Unknown Smart Array", &SA5_access, 120},
 };
 
 /* How long to wait (in milliseconds) for board to go into simple mode */
@@ -121,7 +126,6 @@ static struct board_type products[] = {
 #define MAX_CMD_RETRIES 3
 
 #define READ_AHEAD 	 1024
-#define NR_CMDS		 384	/* #commands that can be outstanding */
 #define MAX_CTLR	32
 
 /* Originally cciss driver only supports 8 major numbers */
@@ -137,7 +141,6 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 		       unsigned int cmd, unsigned long arg);
 static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
-static int revalidate_allvol(ctlr_info_t *host);
 static int cciss_revalidate(struct gendisk *disk);
 static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk);
 static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
@@ -222,6 +225,8 @@ static inline CommandList_struct *removeQ(CommandList_struct **Qptr,
 
 #include "cciss_scsi.c"		/* For SCSI tape support */
 
+#define RAID_UNKNOWN 6
+
 #ifdef CONFIG_PROC_FS
 
 /*
@@ -229,7 +234,6 @@ static inline CommandList_struct *removeQ(CommandList_struct **Qptr,
  */
 #define ENG_GIG 1000000000
 #define ENG_GIG_FACTOR (ENG_GIG/512)
-#define RAID_UNKNOWN 6
 static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
 	"UNKNOWN"
 };
@@ -265,6 +269,7 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
 		       "Firmware Version: %c%c%c%c\n"
 		       "IRQ: %d\n"
 		       "Logical drives: %d\n"
+		       "Max sectors: %d\n"
 		       "Current Q depth: %d\n"
 		       "Current # commands on controller: %d\n"
 		       "Max Q depth since init: %d\n"
@@ -275,7 +280,9 @@ static int cciss_proc_get_info(char *buffer, char **start, off_t offset,
 		       (unsigned long)h->board_id,
 		       h->firm_ver[0], h->firm_ver[1], h->firm_ver[2],
 		       h->firm_ver[3], (unsigned int)h->intr[SIMPLE_MODE_INT],
-		       h->num_luns, h->Qdepth, h->commands_outstanding,
+		       h->num_luns,
+		       h->cciss_max_sectors,
+		       h->Qdepth, h->commands_outstanding,
 		       h->maxQsinceinit, h->max_outstanding, h->maxSG);
 
 	pos += size;
@@ -400,8 +407,8 @@ static CommandList_struct *cmd_alloc(ctlr_info_t *h, int get_from_pool)
 	} else {		/* get it out of the controllers pool */
 
 		do {
-			i = find_first_zero_bit(h->cmd_pool_bits, NR_CMDS);
-			if (i == NR_CMDS)
+			i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
+			if (i == h->nr_cmds)
 				return NULL;
 		} while (test_and_set_bit
 			 (i & (BITS_PER_LONG - 1),
@@ -487,7 +494,7 @@ static int cciss_open(struct inode *inode, struct file *filep)
 	 * but I'm already using way to many device nodes to claim another one
 	 * for "raw controller".
 	 */
-	if (drv->nr_blocks == 0) {
+	if (drv->heads == 0) {
 		if (iminor(inode) != 0) {	/* not node 0? */
 			/* if not node 0 make sure it is a partition = 0 */
 			if (iminor(inode) & 0x0f) {
@@ -529,7 +536,7 @@ static int do_ioctl(struct file *f, unsigned cmd, unsigned long arg)
 {
 	int ret;
 	lock_kernel();
-	ret = cciss_ioctl(f->f_dentry->d_inode, f, cmd, arg);
+	ret = cciss_ioctl(f->f_path.dentry->d_inode, f, cmd, arg);
 	unlock_kernel();
 	return ret;
 }
@@ -850,9 +857,7 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 		}
 
 	case CCISS_REVALIDVOLS:
-		if (bdev != bdev->bd_contains || drv != host->drv)
-			return -ENXIO;
-		return revalidate_allvol(host);
+		return rebuild_lun_table(host, NULL);
 
 	case CCISS_GETLUNINFO:{
 			LogvolInfo_struct luninfo;
@@ -1035,7 +1040,7 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 				status = -ENOMEM;
 				goto cleanup1;
 			}
-			buff_size = (int *)kmalloc(MAXSGENTRIES * sizeof(int),
+			buff_size = kmalloc(MAXSGENTRIES * sizeof(int),
 						   GFP_KERNEL);
 			if (!buff_size) {
 				status = -ENOMEM;
@@ -1152,75 +1157,6 @@ static int cciss_ioctl(struct inode *inode, struct file *filep,
 	}
 }
 
-/*
- * revalidate_allvol is for online array config utilities.  After a
- * utility reconfigures the drives in the array, it can use this function
- * (through an ioctl) to make the driver zap any previous disk structs for
- * that controller and get new ones.
- *
- * Right now I'm using the getgeometry() function to do this, but this
- * function should probably be finer grained and allow you to revalidate one
- * particular logical volume (instead of all of them on a particular
- * controller).
- */
-static int revalidate_allvol(ctlr_info_t *host)
-{
-	int ctlr = host->ctlr, i;
-	unsigned long flags;
-
-	spin_lock_irqsave(CCISS_LOCK(ctlr), flags);
-	if (host->usage_count > 1) {
-		spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
-		printk(KERN_WARNING "cciss: Device busy for volume"
-		       " revalidation (usage=%d)\n", host->usage_count);
-		return -EBUSY;
-	}
-	host->usage_count++;
-	spin_unlock_irqrestore(CCISS_LOCK(ctlr), flags);
-
-	for (i = 0; i < NWD; i++) {
-		struct gendisk *disk = host->gendisk[i];
-		if (disk) {
-			request_queue_t *q = disk->queue;
-
-			if (disk->flags & GENHD_FL_UP)
-				del_gendisk(disk);
-			if (q)
-				blk_cleanup_queue(q);
-		}
-	}
-
-	/*
-	 * Set the partition and block size structures for all volumes
-	 * on this controller to zero.  We will reread all of this data
-	 */
-	memset(host->drv, 0, sizeof(drive_info_struct)
-	       * CISS_MAX_LUN);
-	/*
-	 * Tell the array controller not to give us any interrupts while
-	 * we check the new geometry.  Then turn interrupts back on when
-	 * we're done.
-	 */
-	host->access.set_intr_mask(host, CCISS_INTR_OFF);
-	cciss_getgeometry(ctlr);
-	host->access.set_intr_mask(host, CCISS_INTR_ON);
-
-	/* Loop through each real device */
-	for (i = 0; i < NWD; i++) {
-		struct gendisk *disk = host->gendisk[i];
-		drive_info_struct *drv = &(host->drv[i]);
-		/* we must register the controller even if no disks exist */
-		/* this is for the online array utilities */
-		if (!drv->heads && i)
-			continue;
-		blk_queue_hardsect_size(drv->queue, drv->block_size);
-		set_capacity(disk, drv->nr_blocks);
-		add_disk(disk);
-	}
-	host->usage_count--;
-	return 0;
-}
-
 static inline void complete_buffers(struct bio *bio, int status)
 {
 	while (bio) {
@@ -1243,7 +1179,7 @@ static void cciss_check_queues(ctlr_info_t *h)
 	 * in case the interrupt we serviced was from an ioctl and did not
 	 * free any new commands.
 	 */
-	if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS)
+	if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds)
 		return;
 
 	/* We have room on the queue for more commands.  Now we need to queue
@@ -1262,7 +1198,7 @@ static void cciss_check_queues(ctlr_info_t *h)
 		/* check to see if we have maxed out the number of commands
 		 * that can be placed on the queue.
 		 */
-		if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) {
+		if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds) {
 			if (curr_queue == start_queue) {
 				h->next_to_run =
 				    (start_queue + 1) % (h->highest_lun + 1);
@@ -1380,6 +1316,11 @@ static void cciss_update_drive_info(int ctlr, int drv_index)
 	/* if it's the controller it's already added */
 	if (drv_index) {
 		disk->queue = blk_init_queue(do_cciss_request, &h->lock);
+		sprintf(disk->disk_name, "cciss/c%dd%d", ctlr, drv_index);
+		disk->major = h->major;
+		disk->first_minor = drv_index << NWD_SHIFT;
+		disk->fops = &cciss_fops;
+		disk->private_data = &h->drv[drv_index];
 
 		/* Set up queue information */
 		disk->queue->backing_dev_info.ra_pages = READ_AHEAD;
@@ -1391,7 +1332,7 @@ static void cciss_update_drive_info(int ctlr, int drv_index)
 		/* This is a limit in the driver and could be eliminated. */
 		blk_queue_max_phys_segments(disk->queue, MAXSGENTRIES);
 
-		blk_queue_max_sectors(disk->queue, 512);
+		blk_queue_max_sectors(disk->queue, h->cciss_max_sectors);
 
 		blk_queue_softirq_done(disk->queue, cciss_softirq_done);
 
@@ -1458,11 +1399,6 @@ static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk)
 
 	/* Set busy_configuring flag for this operation */
 	spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
-	if (h->num_luns >= CISS_MAX_LUN) {
-		spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
-		return -EINVAL;
-	}
-
 	if (h->busy_configuring) {
 		spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
 		return -EBUSY;
@@ -1495,17 +1431,8 @@ static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk)
 					      0, 0, TYPE_CMD);
 
 		if (return_code == IO_OK) {
-			listlength |=
-			    (0xff & (unsigned int)(ld_buff->LUNListLength[0]))
-			    << 24;
-			listlength |=
-			    (0xff & (unsigned int)(ld_buff->LUNListLength[1]))
-			    << 16;
-			listlength |=
-			    (0xff & (unsigned int)(ld_buff->LUNListLength[2]))
-			    << 8;
-			listlength |=
-			    0xff & (unsigned int)(ld_buff->LUNListLength[3]);
+			listlength =
+				be32_to_cpu(*(__u32 *) ld_buff->LUNListLength);
 		} else {	/* reading number of logical volumes failed */
 			printk(KERN_WARNING "cciss: report logical volume"
 			       " command failed\n");
@@ -1556,6 +1483,14 @@ static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk)
 				if (drv_index == -1)
 					goto freeret;
 
+				/*Check if the gendisk needs to be allocated */
+				if (!h->gendisk[drv_index]){
+					h->gendisk[drv_index] = alloc_disk(1 << NWD_SHIFT);
+					if (!h->gendisk[drv_index]){
+						printk(KERN_ERR "cciss: could not allocate new disk %d\n", drv_index);
+						goto mem_msg;
+					}
+				}
 			}
 			h->drv[drv_index].LunID = lunid;
 			cciss_update_drive_info(ctlr, drv_index);
@@ -1593,6 +1528,7 @@ static int rebuild_lun_table(ctlr_info_t *h, struct gendisk *del_disk)
 static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
 			   int clear_all)
 {
+	int i;
 	ctlr_info_t *h = get_host(disk);
 
 	if (!capable(CAP_SYS_RAWIO))
@@ -1616,9 +1552,35 @@ static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
 				del_gendisk(disk);
 			if (q) {
 				blk_cleanup_queue(q);
+				/* Set drv->queue to NULL so that we do not try
+				 * to call blk_start_queue on this queue in the
+				 * interrupt handler
+				 */
 				drv->queue = NULL;
 			}
+			/* If clear_all is set then we are deleting the logical
+			 * drive, not just refreshing its info.  For drives
+			 * other than disk 0 we will call put_disk.  We do not
+			 * do this for disk 0 as we need it to be able to
+			 * configure the controller.
+			*/
+			if (clear_all){
+				/* This isn't pretty, but we need to find the
+				 * disk in our array and NULL our the pointer.
+				 * This is so that we will call alloc_disk if
+				 * this index is used again later.
+				*/
+				for (i=0; i < CISS_MAX_LUN; i++){
+					if(h->gendisk[i] == disk){
+						h->gendisk[i] = NULL;
+						break;
+					}
+				}
+				put_disk(disk);
+			}
 		}
+	} else {
+		set_capacity(disk, 0);
 	}
 
 	--h->num_luns;
@@ -1946,6 +1908,7 @@ static void cciss_geometry_inquiry(int ctlr, int logvol,
 			       "does not support reading geometry\n");
 			drv->heads = 255;
 			drv->sectors = 32;	// Sectors per track
+			drv->raid_level = RAID_UNKNOWN;
 		} else {
 			drv->heads = inq_buff->data_byte[6];
 			drv->sectors = inq_buff->data_byte[7];
@@ -2136,7 +2099,7 @@ static int add_sendcmd_reject(__u8 cmd, int ctlr, unsigned long complete)
 
 	/* We've sent down an abort or reset, but something else
 	   has completed */
-	if (srl->ncompletions >= (NR_CMDS + 2)) {
+	if (srl->ncompletions >= (hba[ctlr]->nr_cmds + 2)) {
 		/* Uh oh.  No room to save it for later... */
 		printk(KERN_WARNING "cciss%d: Sendcmd: Invalid command addr, "
 		       "reject list overflow, command lost!\n", ctlr);
@@ -2530,7 +2493,7 @@ static void do_cciss_request(request_queue_t *q)
 	c->Request.Type.Type = TYPE_CMD;	// It is a command.
 	c->Request.Type.Attribute = ATTR_SIMPLE;
 	c->Request.Type.Direction =
-	    (rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write;
+	    (rq_data_dir(creq) == READ) ? XFER_READ : XFER_WRITE;
 	c->Request.Timeout = 0;	// Don't time out
 	c->Request.CDB[0] =
 	    (rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write;
@@ -2673,7 +2636,7 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id)
 			a1 = a;
 			if ((a & 0x04)) {
 				a2 = (a >> 3);
-				if (a2 >= NR_CMDS) {
+				if (a2 >= h->nr_cmds) {
 					printk(KERN_WARNING
 					       "cciss: controller cciss%d failed, stopping.\n",
 					       h->ctlr);
@@ -2827,23 +2790,21 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *c,
 		if (err > 0) {
 			printk(KERN_WARNING "cciss: only %d MSI-X vectors "
 			       "available\n", err);
+			goto default_int_mode;
 		} else {
 			printk(KERN_WARNING "cciss: MSI-X init failed %d\n",
 			       err);
+			goto default_int_mode;
 		}
 	}
 	if (pci_find_capability(pdev, PCI_CAP_ID_MSI)) {
 		if (!pci_enable_msi(pdev)) {
-			c->intr[SIMPLE_MODE_INT] = pdev->irq;
 			c->msi_vector = 1;
-			return;
 		} else {
 			printk(KERN_WARNING "cciss: MSI init failed\n");
-			c->intr[SIMPLE_MODE_INT] = pdev->irq;
-			return;
 		}
 	}
-      default_int_mode:
+default_int_mode:
 #endif				/* CONFIG_PCI_MSI */
 	/* if we get here we're going to use the default interrupt mode */
 	c->intr[SIMPLE_MODE_INT] = pdev->irq;
@@ -2878,7 +2839,7 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 	if (err) {
 		printk(KERN_ERR "cciss: Cannot obtain PCI resources, "
 		       "aborting\n");
-		goto err_out_disable_pdev;
+		return err;
 	}
 
 	subsystem_vendor_id = pdev->subsystem_vendor;
@@ -2906,7 +2867,7 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 #ifdef CCISS_DEBUG
 	printk("address 0 = %x\n", c->paddr);
 #endif				/* CCISS_DEBUG */
-	c->vaddr = remap_pci_mem(c->paddr, 200);
+	c->vaddr = remap_pci_mem(c->paddr, 0x250);
 
 	/* Wait for the board to become ready.  (PCI hotplug needs this.)
 	 * We poll for up to 120 secs, once per 100ms. */
@@ -2956,16 +2917,10 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 		if (board_id == products[i].board_id) {
 			c->product_name = products[i].product_name;
 			c->access = *(products[i].access);
+			c->nr_cmds = products[i].nr_cmds;
 			break;
 		}
 	}
-	if (i == ARRAY_SIZE(products)) {
-		printk(KERN_WARNING "cciss: Sorry, I don't know how"
-		       " to access the Smart Array controller %08lx\n",
-		       (unsigned long)board_id);
-		err = -ENODEV;
-		goto err_out_free_res;
-	}
 	if ((readb(&c->cfgtable->Signature[0]) != 'C') ||
 	    (readb(&c->cfgtable->Signature[1]) != 'I') ||
 	    (readb(&c->cfgtable->Signature[2]) != 'S') ||
@@ -2974,6 +2929,27 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 		err = -ENODEV;
 		goto err_out_free_res;
 	}
+	/* We didn't find the controller in our list. We know the
+	 * signature is valid. If it's an HP device let's try to
+	 * bind to the device and fire it up. Otherwise we bail.
+	 */
+	if (i == ARRAY_SIZE(products)) {
+		if (subsystem_vendor_id == PCI_VENDOR_ID_HP) {
+			c->product_name = products[i-1].product_name;
+			c->access = *(products[i-1].access);
+			c->nr_cmds = products[i-1].nr_cmds;
+			printk(KERN_WARNING "cciss: This is an unknown "
+				"Smart Array controller.\n"
+				"cciss: Please update to the latest driver "
+				"available from www.hp.com.\n");
+		} else {
+			printk(KERN_WARNING "cciss: Sorry, I don't know how"
+				" to access the Smart Array controller %08lx\n"
+					, (unsigned long)board_id);
+			err = -ENODEV;
+			goto err_out_free_res;
+		}
+	}
 #ifdef CONFIG_X86
 	{
 		/* Need to enable prefetch in the SCSI core for 6400 in x86 */
@@ -2984,6 +2960,17 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 	}
 #endif
 
+	/* Disabling DMA prefetch for the P600
+	 * An ASIC bug may result in a prefetch beyond
+	 * physical memory.
+	 */
+	if(board_id == 0x3225103C) {
+		__u32 dma_prefetch;
+		dma_prefetch = readl(c->vaddr + I2O_DMA1_CFG);
+		dma_prefetch |= 0x8000;
+		writel(dma_prefetch, c->vaddr + I2O_DMA1_CFG);
+	}
+
 #ifdef CCISS_DEBUG
 	printk("Trying to put board into Simple mode\n");
 #endif				/* CCISS_DEBUG */
@@ -3019,11 +3006,12 @@ static int cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 	}
 	return 0;
 
-      err_out_free_res:
+err_out_free_res:
+	/*
+	 * Deliberately omit pci_disable_device(): it does something nasty to
+	 * Smart Array controllers that pci_enable_device does not undo
+	 */
 	pci_release_regions(pdev);
-
-      err_out_disable_pdev:
-	pci_disable_device(pdev);
 	return err;
 }
 
@@ -3158,13 +3146,7 @@ geo_inq:
 /* Returns -1 if no free entries are left.  */
 static int alloc_cciss_hba(void)
 {
-	struct gendisk *disk[NWD];
-	int i, n;
-	for (n = 0; n < NWD; n++) {
-		disk[n] = alloc_disk(1 << NWD_SHIFT);
-		if (!disk[n])
-			goto out;
-	}
+	int i;
 
 	for (i = 0; i < MAX_CTLR; i++) {
 		if (!hba[i]) {
@@ -3172,20 +3154,18 @@ static int alloc_cciss_hba(void)
 			p = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL);
 			if (!p)
 				goto Enomem;
-			for (n = 0; n < NWD; n++)
-				p->gendisk[n] = disk[n];
+			p->gendisk[0] = alloc_disk(1 << NWD_SHIFT);
+			if (!p->gendisk[0])
+				goto Enomem;
 			hba[i] = p;
 			return i;
 		}
 	}
 	printk(KERN_WARNING "cciss: This driver supports a maximum"
 	       " of %d controllers.\n", MAX_CTLR);
-	goto out;
-      Enomem:
+	return -1;
+Enomem:
 	printk(KERN_ERR "cciss: out of memory.\n");
-      out:
-	while (n--)
-		put_disk(disk[n]);
 	return -1;
 }
 
@@ -3195,7 +3175,7 @@ static void free_hba(int i)
 	int n;
 
 	hba[i] = NULL;
-	for (n = 0; n < NWD; n++)
+	for (n = 0; n < CISS_MAX_LUN; n++)
 		put_disk(p->gendisk[n]);
 	kfree(p);
 }
@@ -3208,9 +3188,8 @@ static void free_hba(int i)
 static int __devinit cciss_init_one(struct pci_dev *pdev,
 				    const struct pci_device_id *ent)
 {
-	request_queue_t *q;
 	int i;
-	int j;
+	int j = 0;
 	int rc;
 	int dac;
 
@@ -3269,15 +3248,15 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 	       hba[i]->intr[SIMPLE_MODE_INT], dac ? "" : " not");
 
 	hba[i]->cmd_pool_bits =
-	    kmalloc(((NR_CMDS + BITS_PER_LONG -
+	    kmalloc(((hba[i]->nr_cmds + BITS_PER_LONG -
 		      1) / BITS_PER_LONG) * sizeof(unsigned long), GFP_KERNEL);
 	hba[i]->cmd_pool = (CommandList_struct *)
 	    pci_alloc_consistent(hba[i]->pdev,
-		    NR_CMDS * sizeof(CommandList_struct),
+		    hba[i]->nr_cmds * sizeof(CommandList_struct),
 		    &(hba[i]->cmd_pool_dhandle));
 	hba[i]->errinfo_pool = (ErrorInfo_struct *)
 	    pci_alloc_consistent(hba[i]->pdev,
-		    NR_CMDS * sizeof(ErrorInfo_struct),
+		    hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
 		    &(hba[i]->errinfo_pool_dhandle));
 	if ((hba[i]->cmd_pool_bits == NULL)
 	    || (hba[i]->cmd_pool == NULL)
@@ -3288,7 +3267,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 #ifdef CONFIG_CISS_SCSI_TAPE
 	hba[i]->scsi_rejects.complete =
 	    kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) *
-		    (NR_CMDS + 5), GFP_KERNEL);
+		    (hba[i]->nr_cmds + 5), GFP_KERNEL);
 	if (hba[i]->scsi_rejects.complete == NULL) {
 		printk(KERN_ERR "cciss: out of memory");
 		goto clean4;
@@ -3302,7 +3281,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 	/* command and error info recs zeroed out before
 	   they are used */
 	memset(hba[i]->cmd_pool_bits, 0,
-	       ((NR_CMDS + BITS_PER_LONG -
+	       ((hba[i]->nr_cmds + BITS_PER_LONG -
 		 1) / BITS_PER_LONG) * sizeof(unsigned long));
 
 #ifdef CCISS_DEBUG
@@ -3317,18 +3296,34 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 	hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON);
 
 	cciss_procinit(i);
+
+	hba[i]->cciss_max_sectors = 2048;
+
 	hba[i]->busy_initializing = 0;
 
-	for (j = 0; j < NWD; j++) {	/* mfm */
+	do {
 		drive_info_struct *drv = &(hba[i]->drv[j]);
 		struct gendisk *disk = hba[i]->gendisk[j];
+		request_queue_t *q;
+
+		/* Check if the disk was allocated already */
+		if (!disk){
+			hba[i]->gendisk[j] = alloc_disk(1 << NWD_SHIFT);
+			disk = hba[i]->gendisk[j];
+		}
+
+		/* Check that the disk was able to be allocated */
+		if (!disk) {
+			printk(KERN_ERR "cciss: unable to allocate memory for disk %d\n", j);
+			goto clean4;
+		}
 
 		q = blk_init_queue(do_cciss_request, &hba[i]->lock);
 		if (!q) {
 			printk(KERN_ERR
 			       "cciss:  unable to allocate queue for disk %d\n",
 			       j);
-			break;
+			goto clean4;
 		}
 		drv->queue = q;
 
@@ -3341,7 +3336,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 		/* This is a limit in the driver and could be eliminated. */
 		blk_queue_max_phys_segments(q, MAXSGENTRIES);
 
-		blk_queue_max_sectors(q, 512);
+		blk_queue_max_sectors(q, hba[i]->cciss_max_sectors);
 
 		blk_queue_softirq_done(q, cciss_softirq_done);
 
@@ -3360,7 +3355,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 		blk_queue_hardsect_size(q, drv->block_size);
 		set_capacity(disk, drv->nr_blocks);
 		add_disk(disk);
-	}
+		j++;
+	} while (j <= hba[i]->highest_lun);
 
 	return 1;
 
@@ -3371,11 +3367,11 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 	kfree(hba[i]->cmd_pool_bits);
 	if (hba[i]->cmd_pool)
 		pci_free_consistent(hba[i]->pdev,
-				    NR_CMDS * sizeof(CommandList_struct),
+				    hba[i]->nr_cmds * sizeof(CommandList_struct),
 				    hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
 	if (hba[i]->errinfo_pool)
 		pci_free_consistent(hba[i]->pdev,
-				    NR_CMDS * sizeof(ErrorInfo_struct),
+				    hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
 				    hba[i]->errinfo_pool,
 				    hba[i]->errinfo_pool_dhandle);
 	free_irq(hba[i]->intr[SIMPLE_MODE_INT], hba[i]);
@@ -3383,6 +3379,18 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 	unregister_blkdev(hba[i]->major, hba[i]->devname);
       clean1:
 	hba[i]->busy_initializing = 0;
+	/* cleanup any queues that may have been initialized */
+	for (j=0; j <= hba[i]->highest_lun; j++){
+		drive_info_struct *drv = &(hba[i]->drv[j]);
+		if (drv->queue)
+			blk_cleanup_queue(drv->queue);
+	}
+	/*
+	 * Deliberately omit pci_disable_device(): it does something nasty to
+	 * Smart Array controllers that pci_enable_device does not undo
+	 */
+	pci_release_regions(pdev);
+	pci_set_drvdata(pdev, NULL);
 	free_hba(i);
 	return -1;
 }
@@ -3430,7 +3438,7 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev)
 	remove_proc_entry(hba[i]->devname, proc_cciss);
 
 	/* remove it from the disk list */
-	for (j = 0; j < NWD; j++) {
+	for (j = 0; j < CISS_MAX_LUN; j++) {
 		struct gendisk *disk = hba[i]->gendisk[j];
 		if (disk) {
 			request_queue_t *q = disk->queue;
@@ -3442,16 +3450,19 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev)
 		}
 	}
 
-	pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof(CommandList_struct),
+	pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(CommandList_struct),
 			    hba[i]->cmd_pool, hba[i]->cmd_pool_dhandle);
-	pci_free_consistent(hba[i]->pdev, NR_CMDS * sizeof(ErrorInfo_struct),
+	pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(ErrorInfo_struct),
 			    hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle);
 	kfree(hba[i]->cmd_pool_bits);
 #ifdef CONFIG_CISS_SCSI_TAPE
 	kfree(hba[i]->scsi_rejects.complete);
 #endif
+	/*
+	 * Deliberately omit pci_disable_device(): it does something nasty to
+	 * Smart Array controllers that pci_enable_device does not undo
+	 */
 	pci_release_regions(pdev);
-	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
 	free_hba(i);
 }
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 562235c1445..b70988dd33e 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -6,7 +6,6 @@
 #include "cciss_cmd.h"
 
 
-#define NWD		16
 #define NWD_SHIFT	4
 #define MAX_PART	(1 << NWD_SHIFT)
 
@@ -60,6 +59,7 @@ struct ctlr_info
 	__u32	board_id;
 	void __iomem *vaddr;
 	unsigned long paddr;
+	int 	nr_cmds; /* Number of commands allowed on this controller */
 	CfgTable_struct __iomem *cfgtable;
 	int	interrupts_enabled;
 	int	major;
@@ -76,6 +76,7 @@ struct ctlr_info
 	unsigned int intr[4];
 	unsigned int msix_vector;
 	unsigned int msi_vector;
+	int 	cciss_max_sectors;
 	BYTE	cciss_read;
 	BYTE	cciss_write;
 	BYTE	cciss_read_capacity;
@@ -110,7 +111,7 @@ struct ctlr_info
 	int			next_to_run;
 
 	// Disk structures we need to pass back
-	struct gendisk   *gendisk[NWD];
+	struct gendisk   *gendisk[CISS_MAX_LUN];
 #ifdef CONFIG_CISS_SCSI_TAPE
 	void *scsi_ctlr; /* ptr to structure containing scsi related stuff */
 	/* list of block side commands the scsi error handling sucked up */
@@ -282,6 +283,7 @@ struct board_type {
 	__u32	board_id;
 	char	*product_name;
 	struct access_method *access;
+	int nr_cmds; /* Max cmds this kind of ctlr can handle. */
 };
 
 #define CCISS_LOCK(i)	(&hba[i]->lock)
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 4af7c4c0c7a..43bf5593b59 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -55,6 +55,7 @@
 #define I2O_INT_MASK            0x34
 #define I2O_IBPOST_Q            0x40
 #define I2O_OBPOST_Q            0x44
+#define I2O_DMA1_CFG		0x214
 
 //Configuration Table
 #define CFGTBL_ChangeReq        0x00000001l
@@ -88,7 +89,7 @@ typedef union _u64bit
 //###########################################################################
 //STRUCTURES
 //###########################################################################
-#define CISS_MAX_LUN	16	
+#define CISS_MAX_LUN	1024
 #define CISS_MAX_PHYS_LUN	1024
 // SCSI-3 Cmmands 
 
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index d5f519ebbc0..b94cd1c3213 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1625,7 +1625,7 @@ static void start_fwbk(int ctlr)
 		" processing\n");
 	/* Command does not return anything, but idasend command needs a 
 		buffer */
-	id_ctlr_buf = (id_ctlr_t *)kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
+	id_ctlr_buf = kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
 	if(id_ctlr_buf==NULL)
 	{
 		printk(KERN_WARNING "cpqarray: Out of memory. "
@@ -1660,14 +1660,14 @@ static void getgeometry(int ctlr)
 
 	info_p->log_drv_map = 0;	
 	
-	id_ldrive = (id_log_drv_t *)kmalloc(sizeof(id_log_drv_t), GFP_KERNEL);
+	id_ldrive = kmalloc(sizeof(id_log_drv_t), GFP_KERNEL);
 	if(id_ldrive == NULL)
 	{
 		printk( KERN_ERR "cpqarray:  out of memory.\n");
 		return;
 	}
 
-	id_ctlr_buf = (id_ctlr_t *)kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
+	id_ctlr_buf = kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
 	if(id_ctlr_buf == NULL)
 	{
 		kfree(id_ldrive);
@@ -1675,7 +1675,7 @@ static void getgeometry(int ctlr)
 		return;
 	}
 
-	id_lstatus_buf = (sense_log_drv_stat_t *)kmalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
+	id_lstatus_buf = kmalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
 	if(id_lstatus_buf == NULL)
 	{
 		kfree(id_ctlr_buf);
@@ -1684,7 +1684,7 @@ static void getgeometry(int ctlr)
 		return;
 	}
 
-	sense_config_buf = (config_t *)kmalloc(sizeof(config_t), GFP_KERNEL);
+	sense_config_buf = kmalloc(sizeof(config_t), GFP_KERNEL);
 	if(sense_config_buf == NULL)
 	{
 		kfree(id_lstatus_buf);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 9e6d3a87cbe..3f1b38276e9 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -992,11 +992,11 @@ static void empty(void)
 {
 }
 
-static DECLARE_WORK(floppy_work, NULL, NULL);
+static DECLARE_WORK(floppy_work, NULL);
 
 static void schedule_bh(void (*handler) (void))
 {
-	PREPARE_WORK(&floppy_work, (void (*)(void *))handler, NULL);
+	PREPARE_WORK(&floppy_work, (work_func_t)handler);
 	schedule_work(&floppy_work);
 }
 
@@ -1008,7 +1008,7 @@ static void cancel_activity(void)
 
 	spin_lock_irqsave(&floppy_lock, flags);
 	do_floppy = NULL;
-	PREPARE_WORK(&floppy_work, (void *)empty, NULL);
+	PREPARE_WORK(&floppy_work, (work_func_t)empty);
 	del_timer(&fd_timer);
 	spin_unlock_irqrestore(&floppy_lock, flags);
 }
@@ -1868,7 +1868,7 @@ static void show_floppy(void)
 	printk("fdc_busy=%lu\n", fdc_busy);
 	if (do_floppy)
 		printk("do_floppy=%p\n", do_floppy);
-	if (floppy_work.pending)
+	if (work_pending(&floppy_work))
 		printk("floppy_work.func=%p\n", floppy_work.func);
 	if (timer_pending(&fd_timer))
 		printk("fd_timer.function=%p\n", fd_timer.function);
@@ -4498,7 +4498,7 @@ static void floppy_release_irq_and_dma(void)
 		printk("floppy timer still active:%s\n", timeout_message);
 	if (timer_pending(&fd_timer))
 		printk("auxiliary floppy timer still active\n");
-	if (floppy_work.pending)
+	if (work_pending(&floppy_work))
 		printk("work still pending\n");
 #endif
 	old_fdc = fdc;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index beab6d2643c..6b5b6420740 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1000,7 +1000,7 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info)
 
 	if (lo->lo_state != Lo_bound)
 		return -ENXIO;
-	error = vfs_getattr(file->f_vfsmnt, file->f_dentry, &stat);
+	error = vfs_getattr(file->f_path.mnt, file->f_path.dentry, &stat);
 	if (error)
 		return error;
 	memset(info, 0, sizeof(*info));
@@ -1287,7 +1287,7 @@ loop_get_status_compat(struct loop_device *lo,
 
 static long lo_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-	struct inode *inode = file->f_dentry->d_inode;
+	struct inode *inode = file->f_path.dentry->d_inode;
 	struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
 	int err;
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 9d1035e8d9d..090796bef78 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -355,14 +355,30 @@ harderror:
 	return NULL;
 }
 
+static ssize_t pid_show(struct gendisk *disk, char *page)
+{
+	return sprintf(page, "%ld\n",
+		(long) ((struct nbd_device *)disk->private_data)->pid);
+}
+
+static struct disk_attribute pid_attr = {
+	.attr = { .name = "pid", .mode = S_IRUGO },
+	.show = pid_show,
+};
+
 static void nbd_do_it(struct nbd_device *lo)
 {
 	struct request *req;
 
 	BUG_ON(lo->magic != LO_MAGIC);
 
+	lo->pid = current->pid;
+	sysfs_create_file(&lo->disk->kobj, &pid_attr.attr);
+
 	while ((req = nbd_read_stat(lo)) != NULL)
 		nbd_end_request(req);
+
+	sysfs_remove_file(&lo->disk->kobj, &pid_attr.attr);
 	return;
 }
 
@@ -521,7 +537,7 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
 		error = -EINVAL;
 		file = fget(arg);
 		if (file) {
-			inode = file->f_dentry->d_inode;
+			inode = file->f_path.dentry->d_inode;
 			if (S_ISSOCK(inode->i_mode)) {
 				lo->file = file;
 				lo->sock = SOCKET_I(inode);
diff --git a/drivers/block/paride/aten.c b/drivers/block/paride/aten.c
index c4d696d43dc..2695465568a 100644
--- a/drivers/block/paride/aten.c
+++ b/drivers/block/paride/aten.c
@@ -149,12 +149,12 @@ static struct pi_protocol aten = {
 
 static int __init aten_init(void)
 {
-	return pi_register(&aten)-1;
+	return paride_register(&aten);
 }
 
 static void __exit aten_exit(void)
 {
-	pi_unregister( &aten );
+	paride_unregister( &aten );
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/bpck.c b/drivers/block/paride/bpck.c
index d462ff6b139..4f27e7392e3 100644
--- a/drivers/block/paride/bpck.c
+++ b/drivers/block/paride/bpck.c
@@ -464,12 +464,12 @@ static struct pi_protocol bpck = {
 
 static int __init bpck_init(void)
 {
-	return pi_register(&bpck)-1;
+	return paride_register(&bpck);
 }
 
 static void __exit bpck_exit(void)
 {
-	pi_unregister(&bpck);
+	paride_unregister(&bpck);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/bpck6.c b/drivers/block/paride/bpck6.c
index 41a237c5957..ad124525ac2 100644
--- a/drivers/block/paride/bpck6.c
+++ b/drivers/block/paride/bpck6.c
@@ -31,10 +31,7 @@ static int verbose; /* set this to 1 to see debugging messages and whatnot */
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <asm/io.h>
-
-#if defined(CONFIG_PARPORT_MODULE)||defined(CONFIG_PARPORT)
 #include <linux/parport.h>
-#endif
 
 #include "ppc6lnx.c"
 #include "paride.h"
@@ -139,11 +136,6 @@ static int bpck6_test_port ( PIA *pi )   /* check for 8-bit port */
 	PPCSTRUCT(pi)->ppc_id=pi->unit;
 	PPCSTRUCT(pi)->lpt_addr=pi->port;
 
-#ifdef CONFIG_PARPORT_PC_MODULE
-#define CONFIG_PARPORT_PC
-#endif
-
-#ifdef CONFIG_PARPORT_PC
 	/* look at the parport device to see if what modes we can use */
 	if(((struct pardevice *)(pi->pardev))->port->modes & 
 		(PARPORT_MODE_EPP)
@@ -161,11 +153,6 @@ static int bpck6_test_port ( PIA *pi )   /* check for 8-bit port */
 	{
 		return 1;
 	}
-#else
-	/* there is no way of knowing what kind of port we have
-	   default to the highest mode possible */
-	return 5;
-#endif
 }
 
 static int bpck6_probe_unit ( PIA *pi )
@@ -265,12 +252,12 @@ static int __init bpck6_init(void)
 	printk(KERN_INFO "bpck6: Copyright 2001 by Micro Solutions, Inc., DeKalb IL. USA\n");
 	if(verbose)
 		printk(KERN_DEBUG "bpck6: verbose debug enabled.\n");
-	return pi_register(&bpck6) - 1;  
+	return paride_register(&bpck6);
 }
 
 static void __exit bpck6_exit(void)
 {
-	pi_unregister(&bpck6);
+	paride_unregister(&bpck6);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/comm.c b/drivers/block/paride/comm.c
index 43d61359d8e..9bcd3549532 100644
--- a/drivers/block/paride/comm.c
+++ b/drivers/block/paride/comm.c
@@ -205,12 +205,12 @@ static struct pi_protocol comm = {
 
 static int __init comm_init(void)
 {
-	return pi_register(&comm)-1;
+	return paride_register(&comm);
 }
 
 static void __exit comm_exit(void)
 {
-	pi_unregister(&comm);
+	paride_unregister(&comm);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/dstr.c b/drivers/block/paride/dstr.c
index 04d53bf58e8..accc5c777cb 100644
--- a/drivers/block/paride/dstr.c
+++ b/drivers/block/paride/dstr.c
@@ -220,12 +220,12 @@ static struct pi_protocol dstr = {
 
 static int __init dstr_init(void)
 {
-	return pi_register(&dstr)-1;
+	return paride_register(&dstr);
 }
 
 static void __exit dstr_exit(void)
 {
-	pi_unregister(&dstr);
+	paride_unregister(&dstr);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/epat.c b/drivers/block/paride/epat.c
index 55d1c0a1fb9..1bcdff77322 100644
--- a/drivers/block/paride/epat.c
+++ b/drivers/block/paride/epat.c
@@ -327,12 +327,12 @@ static int __init epat_init(void)
 #ifdef CONFIG_PARIDE_EPATC8
 	epatc8 = 1;
 #endif
-	return pi_register(&epat)-1;
+	return paride_register(&epat);
 }
 
 static void __exit epat_exit(void)
 {
-	pi_unregister(&epat);
+	paride_unregister(&epat);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/epia.c b/drivers/block/paride/epia.c
index 0f2e0c292d8..fb0e782d055 100644
--- a/drivers/block/paride/epia.c
+++ b/drivers/block/paride/epia.c
@@ -303,12 +303,12 @@ static struct pi_protocol epia = {
 
 static int __init epia_init(void)
 {
-	return pi_register(&epia)-1;
+	return paride_register(&epia);
 }
 
 static void __exit epia_exit(void)
 {
-	pi_unregister(&epia);
+	paride_unregister(&epia);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/fit2.c b/drivers/block/paride/fit2.c
index e0f0691d8bc..381283753ae 100644
--- a/drivers/block/paride/fit2.c
+++ b/drivers/block/paride/fit2.c
@@ -138,12 +138,12 @@ static struct pi_protocol fit2 = {
 
 static int __init fit2_init(void)
 {
-	return pi_register(&fit2)-1;
+	return paride_register(&fit2);
 }
 
 static void __exit fit2_exit(void)
 {
-	pi_unregister(&fit2);
+	paride_unregister(&fit2);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/fit3.c b/drivers/block/paride/fit3.c
index 15400e7bc66..275d269458e 100644
--- a/drivers/block/paride/fit3.c
+++ b/drivers/block/paride/fit3.c
@@ -198,12 +198,12 @@ static struct pi_protocol fit3 = {
 
 static int __init fit3_init(void)
 {
-	return pi_register(&fit3)-1;
+	return paride_register(&fit3);
 }
 
 static void __exit fit3_exit(void)
 {
-	pi_unregister(&fit3);
+	paride_unregister(&fit3);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/friq.c b/drivers/block/paride/friq.c
index 5ea2904d281..4f2ba244689 100644
--- a/drivers/block/paride/friq.c
+++ b/drivers/block/paride/friq.c
@@ -263,12 +263,12 @@ static struct pi_protocol friq = {
 
 static int __init friq_init(void)
 {
-	return pi_register(&friq)-1;
+	return paride_register(&friq);
 }
 
 static void __exit friq_exit(void)
 {
-	pi_unregister(&friq);
+	paride_unregister(&friq);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/frpw.c b/drivers/block/paride/frpw.c
index 56b3824b153..c3cde364603 100644
--- a/drivers/block/paride/frpw.c
+++ b/drivers/block/paride/frpw.c
@@ -300,12 +300,12 @@ static struct pi_protocol frpw = {
 
 static int __init frpw_init(void)
 {
-	return pi_register(&frpw)-1;
+	return paride_register(&frpw);
 }
 
 static void __exit frpw_exit(void)
 {
-	pi_unregister(&frpw);
+	paride_unregister(&frpw);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/jumbo b/drivers/block/paride/jumbo
deleted file mode 100644
index e793b9cb7e7..00000000000
--- a/drivers/block/paride/jumbo
+++ /dev/null
@@ -1,70 +0,0 @@
-#!/bin/sh
-#
-# This script can be used to build "jumbo" modules that contain the
-# base PARIDE support, one protocol module and one high-level driver.
-#
-echo -n "High level driver [pcd] : "
-read X
-HLD=${X:-pcd}
-#
-echo -n "Protocol module [bpck] : "
-read X
-PROTO=${X:-bpck}
-#
-echo -n "Use MODVERSIONS [y] ? "
-read X
-UMODV=${X:-y}
-#
-echo -n "For SMP kernel [n] ? "
-read X
-USMP=${X:-n}
-#
-echo -n "Support PARPORT [n] ? "
-read X
-UPARP=${X:-n}
-#
-echo
-#
-case $USMP in
-	y* | Y* ) FSMP="-DCONFIG_SMP"
-		  ;;
-	*)	  FSMP=""
-		  ;;
-esac
-#
-MODI="-include ../../../include/linux/modversions.h"
-#
-case $UMODV in
-	y* | Y* ) FMODV="-DMODVERSIONS $MODI"
-		  ;;
-	*)	  FMODV=""
-		  ;;
-esac
-#
-case $UPARP in
-	y* | Y* ) FPARP="-DCONFIG_PARPORT"
-		  ;;
-	*)	  FPARP=""
-		  ;;
-esac
-#
-TARG=$HLD-$PROTO.o
-FPROTO=-DCONFIG_PARIDE_`echo "$PROTO" | tr [a-z] [A-Z]`
-FK="-D__KERNEL__ -I ../../../include"
-FLCH=-D_LINUX_CONFIG_H
-#
-echo cc $FK $FSMP $FLCH $FPARP $FPROTO $FMODV -Wall -O2 -o Jb.o -c paride.c
-cc $FK $FSMP $FLCH $FPARP $FPROTO $FMODV -Wall -O2 -o Jb.o -c paride.c
-#
-echo cc $FK $FSMP $FMODV -Wall -O2 -o Jp.o -c $PROTO.c
-cc $FK $FSMP $FMODV -Wall -O2 -o Jp.o -c $PROTO.c
-#
-echo cc $FK $FSMP $FMODV -DMODULE -DPARIDE_JUMBO -Wall -O2 -o Jd.o -c $HLD.c
-cc $FK $FSMP $FMODV -DMODULE -DPARIDE_JUMBO -Wall -O2 -o Jd.o -c $HLD.c
-#
-echo ld -r -o $TARG Jp.o Jb.o Jd.o
-ld -r -o $TARG Jp.o Jb.o Jd.o
-#
-#
-rm Jp.o Jb.o Jd.o
-#
diff --git a/drivers/block/paride/kbic.c b/drivers/block/paride/kbic.c
index d983bcea76f..35999c415ee 100644
--- a/drivers/block/paride/kbic.c
+++ b/drivers/block/paride/kbic.c
@@ -283,13 +283,21 @@ static struct pi_protocol k971 = {
 
 static int __init kbic_init(void)
 {
-	return (pi_register(&k951)||pi_register(&k971))-1;
+	int rv;
+
+	rv = paride_register(&k951);
+	if (rv < 0)
+		return rv;
+	rv = paride_register(&k971);
+	if (rv < 0)
+		paride_unregister(&k951);
+	return rv;
 }
 
 static void __exit kbic_exit(void)
 {
-	pi_unregister(&k951);
-	pi_unregister(&k971);
+	paride_unregister(&k951);
+	paride_unregister(&k971);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/ktti.c b/drivers/block/paride/ktti.c
index 6c7edbfba9a..117ab0e8ccf 100644
--- a/drivers/block/paride/ktti.c
+++ b/drivers/block/paride/ktti.c
@@ -115,12 +115,12 @@ static struct pi_protocol ktti = {
 
 static int __init ktti_init(void)
 {
-	return pi_register(&ktti)-1;
+	return paride_register(&ktti);
 }
 
 static void __exit ktti_exit(void)
 {
-	pi_unregister(&ktti);
+	paride_unregister(&ktti);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/on20.c b/drivers/block/paride/on20.c
index 9f8e0109680..0173697a1a4 100644
--- a/drivers/block/paride/on20.c
+++ b/drivers/block/paride/on20.c
@@ -140,12 +140,12 @@ static struct pi_protocol on20 = {
 
 static int __init on20_init(void)
 {
-	return pi_register(&on20)-1;
+	return paride_register(&on20);
 }
 
 static void __exit on20_exit(void)
 {
-	pi_unregister(&on20);
+	paride_unregister(&on20);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/on26.c b/drivers/block/paride/on26.c
index 0f833caa210..95ba256921f 100644
--- a/drivers/block/paride/on26.c
+++ b/drivers/block/paride/on26.c
@@ -306,12 +306,12 @@ static struct pi_protocol on26 = {
 
 static int __init on26_init(void)
 {
-	return pi_register(&on26)-1;
+	return paride_register(&on26);
 }
 
 static void __exit on26_exit(void)
 {
-	pi_unregister(&on26);
+	paride_unregister(&on26);
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/block/paride/paride.c b/drivers/block/paride/paride.c
index 4b258f7836f..48c50f11f63 100644
--- a/drivers/block/paride/paride.c
+++ b/drivers/block/paride/paride.c
@@ -29,14 +29,7 @@
 #include <linux/spinlock.h>
 #include <linux/wait.h>
 #include <linux/sched.h>	/* TASK_* */
-
-#ifdef CONFIG_PARPORT_MODULE
-#define CONFIG_PARPORT
-#endif
-
-#ifdef CONFIG_PARPORT
 #include <linux/parport.h>
-#endif
 
 #include "paride.h"
 
@@ -76,8 +69,6 @@ void pi_read_block(PIA * pi, char *buf, int count)
 
 EXPORT_SYMBOL(pi_read_block);
 
-#ifdef CONFIG_PARPORT
-
 static void pi_wake_up(void *p)
 {
 	PIA *pi = (PIA *) p;
@@ -100,11 +91,8 @@ static void pi_wake_up(void *p)
 		cont();
 }
 
-#endif
-
 int pi_schedule_claimed(PIA * pi, void (*cont) (void))
 {
-#ifdef CONFIG_PARPORT
 	unsigned long flags;
 
 	spin_lock_irqsave(&pi_spinlock, flags);
@@ -115,7 +103,6 @@ int pi_schedule_claimed(PIA * pi, void (*cont) (void))
 	}
 	pi->claimed = 1;
 	spin_unlock_irqrestore(&pi_spinlock, flags);
-#endif
 	return 1;
 }
 EXPORT_SYMBOL(pi_schedule_claimed);
@@ -133,20 +120,16 @@ static void pi_claim(PIA * pi)
 	if (pi->claimed)
 		return;
 	pi->claimed = 1;
-#ifdef CONFIG_PARPORT
 	if (pi->pardev)
 		wait_event(pi->parq,
 			   !parport_claim((struct pardevice *) pi->pardev));
-#endif
 }
 
 static void pi_unclaim(PIA * pi)
 {
 	pi->claimed = 0;
-#ifdef CONFIG_PARPORT
 	if (pi->pardev)
 		parport_release((struct pardevice *) (pi->pardev));
-#endif
 }
 
 void pi_connect(PIA * pi)
@@ -167,21 +150,15 @@ EXPORT_SYMBOL(pi_disconnect);
 
 static void pi_unregister_parport(PIA * pi)
 {
-#ifdef CONFIG_PARPORT
 	if (pi->pardev) {
 		parport_unregister_device((struct pardevice *) (pi->pardev));
 		pi->pardev = NULL;
 	}
-#endif
 }
 
 void pi_release(PIA * pi)
 {
 	pi_unregister_parport(pi);
-#ifndef CONFIG_PARPORT
-	if (pi->reserved)
-		release_region(pi->port, pi->reserved);
-#endif				/* !CONFIG_PARPORT */
 	if (pi->proto->release_proto)
 		pi->proto->release_proto(pi);
 	module_put(pi->proto->owner);
@@ -229,7 +206,7 @@ static int pi_test_proto(PIA * pi, char *scratch, int verbose)
 	return res;
 }
 
-int pi_register(PIP * pr)
+int paride_register(PIP * pr)
 {
 	int k;
 
@@ -237,24 +214,24 @@ int pi_register(PIP * pr)
 		if (protocols[k] && !strcmp(pr->name, protocols[k]->name)) {
 			printk("paride: %s protocol already registered\n",
 			       pr->name);
-			return 0;
+			return -1;
 		}
 	k = 0;
 	while ((k < MAX_PROTOS) && (protocols[k]))
 		k++;
 	if (k == MAX_PROTOS) {
 		printk("paride: protocol table full\n");
-		return 0;
+		return -1;
 	}
 	protocols[k] = pr;
 	pr->index = k;
 	printk("paride: %s registered as protocol %d\n", pr->name, k);
-	return 1;
+	return 0;
 }
 
-EXPORT_SYMBOL(pi_register);
+EXPORT_SYMBOL(paride_register);
 
-void pi_unregister(PIP * pr)
+void paride_unregister(PIP * pr)
 {
 	if (!pr)
 		return;
@@ -265,12 +242,10 @@ void pi_unregister(PIP * pr)
 	protocols[pr->index] = NULL;
 }
 
-EXPORT_SYMBOL(pi_unregister);
+EXPORT_SYMBOL(paride_unregister);
 
 static int pi_register_parport(PIA * pi, int verbose)
 {
-#ifdef CONFIG_PARPORT
-
 	struct parport *port;
 
 	port = parport_find_base(pi->port);
@@ -290,7 +265,6 @@ static int pi_register_parport(PIA * pi, int verbose)
 		printk("%s: 0x%x is %s\n", pi->device, pi->port, port->name);
 
 	pi->parname = (char *) port->name;
-#endif
 
 	return 1;
 }
@@ -447,13 +421,6 @@ int pi_init(PIA * pi, int autoprobe, int port, int mode,
 			printk("%s: Adapter not found\n", device);
 		return 0;
 	}
-#ifndef CONFIG_PARPORT
-	if (!request_region(pi->port, pi->reserved, pi->device)) {
-		printk(KERN_WARNING "paride: Unable to request region 0x%x\n",
-		       pi->port);
-		return 0;
-	}
-#endif				/* !CONFIG_PARPORT */
 
 	if (pi->parname)
 		printk("%s: Sharing %s at 0x%x\n", pi->device,
diff --git a/drivers/block/paride/paride.h b/drivers/block/paride/paride.h
index c6d98ef09e4..2bddbf45518 100644
--- a/drivers/block/paride/paride.h
+++ b/drivers/block/paride/paride.h
@@ -163,8 +163,8 @@ struct pi_protocol {
 
 typedef struct pi_protocol PIP;
 
-extern int pi_register( PIP * );
-extern void pi_unregister ( PIP * );
+extern int paride_register( PIP * );
+extern void paride_unregister ( PIP * );
 
 #endif /* __DRIVERS_PARIDE_H__ */
 /* end of paride.h */
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index ac5ba462710..c852eed91e4 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -912,12 +912,12 @@ static int __init pcd_init(void)
 	int unit;
 
 	if (disable)
-		return -1;
+		return -EINVAL;
 
 	pcd_init_units();
 
 	if (pcd_detect())
-		return -1;
+		return -ENODEV;
 
 	/* get the atapi capabilities page */
 	pcd_probe_capabilities();
@@ -925,7 +925,7 @@ static int __init pcd_init(void)
 	if (register_blkdev(major, name)) {
 		for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
 			put_disk(cd->disk);
-		return -1;
+		return -EBUSY;
 	}
 
 	pcd_queue = blk_init_queue(do_pcd_request, &pcd_lock);
@@ -933,7 +933,7 @@ static int __init pcd_init(void)
 		unregister_blkdev(major, name);
 		for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
 			put_disk(cd->disk);
-		return -1;
+		return -ENOMEM;
 	}
 
 	for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 40a11e56797..9d9bff23f42 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -352,19 +352,19 @@ static enum action (*phase)(void);
 
 static void run_fsm(void);
 
-static void ps_tq_int( void *data);
+static void ps_tq_int(struct work_struct *work);
 
-static DECLARE_WORK(fsm_tq, ps_tq_int, NULL);
+static DECLARE_DELAYED_WORK(fsm_tq, ps_tq_int);
 
 static void schedule_fsm(void)
 {
 	if (!nice)
-		schedule_work(&fsm_tq);
+		schedule_delayed_work(&fsm_tq, 0);
 	else
 		schedule_delayed_work(&fsm_tq, nice-1);
 }
 
-static void ps_tq_int(void *data)
+static void ps_tq_int(struct work_struct *work)
 {
 	run_fsm();
 }
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index 1a9dee19efc..7cdaa195126 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -933,25 +933,25 @@ static int __init pf_init(void)
 	int unit;
 
 	if (disable)
-		return -1;
+		return -EINVAL;
 
 	pf_init_units();
 
 	if (pf_detect())
-		return -1;
+		return -ENODEV;
 	pf_busy = 0;
 
 	if (register_blkdev(major, name)) {
 		for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++)
 			put_disk(pf->disk);
-		return -1;
+		return -EBUSY;
 	}
 	pf_queue = blk_init_queue(do_pf_request, &pf_spin_lock);
 	if (!pf_queue) {
 		unregister_blkdev(major, name);
 		for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++)
 			put_disk(pf->disk);
-		return -1;
+		return -ENOMEM;
 	}
 
 	blk_queue_max_phys_segments(pf_queue, cluster);
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 13f998aa1cd..9970aedbb5d 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -646,14 +646,14 @@ static int __init pg_init(void)
 	int err;
 
 	if (disable){
-		err = -1;
+		err = -EINVAL;
 		goto out;
 	}
 
 	pg_init_units();
 
 	if (pg_detect()) {
-		err = -1;
+		err = -ENODEV;
 		goto out;
 	}
 
diff --git a/drivers/block/paride/pseudo.h b/drivers/block/paride/pseudo.h
index 932342d7a8e..bc370329414 100644
--- a/drivers/block/paride/pseudo.h
+++ b/drivers/block/paride/pseudo.h
@@ -35,7 +35,7 @@
 #include <linux/sched.h>
 #include <linux/workqueue.h>
 
-static void ps_tq_int( void *data);
+static void ps_tq_int(struct work_struct *work);
 
 static void (* ps_continuation)(void);
 static int (* ps_ready)(void);
@@ -45,7 +45,7 @@ static int ps_nice = 0;
 
 static DEFINE_SPINLOCK(ps_spinlock __attribute__((unused)));
 
-static DECLARE_WORK(ps_tq, ps_tq_int, NULL);
+static DECLARE_DELAYED_WORK(ps_tq, ps_tq_int);
 
 static void ps_set_intr(void (*continuation)(void), 
 			int (*ready)(void),
@@ -63,14 +63,14 @@ static void ps_set_intr(void (*continuation)(void),
 	if (!ps_tq_active) {
 		ps_tq_active = 1;
 		if (!ps_nice)
-			schedule_work(&ps_tq);
+			schedule_delayed_work(&ps_tq, 0);
 		else
 			schedule_delayed_work(&ps_tq, ps_nice-1);
 	}
 	spin_unlock_irqrestore(&ps_spinlock,flags);
 }
 
-static void ps_tq_int(void *data)
+static void ps_tq_int(struct work_struct *work)
 {
 	void (*con)(void);
 	unsigned long flags;
@@ -92,7 +92,7 @@ static void ps_tq_int(void *data)
 	}
 	ps_tq_active = 1;
 	if (!ps_nice)
-		schedule_work(&ps_tq);
+		schedule_delayed_work(&ps_tq, 0);
 	else
 		schedule_delayed_work(&ps_tq, ps_nice-1);
 	spin_unlock_irqrestore(&ps_spinlock,flags);
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 35fb2663672..c902b25e486 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -946,12 +946,12 @@ static int __init pt_init(void)
 	int err;
 
 	if (disable) {
-		err = -1;
+		err = -EINVAL;
 		goto out;
 	}
 
 	if (pt_detect()) {
-		err = -1;
+		err = -ENODEV;
 		goto out;
 	}
 
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index f2904f67af4..62462190e07 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2000 Jens Axboe <axboe@suse.de>
  * Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
+ * Copyright (C) 2006 Thomas Maier <balagi@justmail.de>
  *
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.
@@ -54,11 +55,13 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/miscdevice.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/mutex.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_ioctl.h>
 #include <scsi/scsi.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
 
 #include <asm/uaccess.h>
 
@@ -83,9 +86,424 @@
 static struct pktcdvd_device *pkt_devs[MAX_WRITERS];
 static struct proc_dir_entry *pkt_proc;
 static int pktdev_major;
+static int write_congestion_on  = PKT_WRITE_CONGESTION_ON;
+static int write_congestion_off = PKT_WRITE_CONGESTION_OFF;
 static struct mutex ctl_mutex;	/* Serialize open/close/setup/teardown */
 static mempool_t *psd_pool;
 
+static struct class	*class_pktcdvd = NULL;    /* /sys/class/pktcdvd */
+static struct dentry	*pkt_debugfs_root = NULL; /* /debug/pktcdvd */
+
+/* forward declaration */
+static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev);
+static int pkt_remove_dev(dev_t pkt_dev);
+static int pkt_seq_show(struct seq_file *m, void *p);
+
+
+
+/*
+ * create and register a pktcdvd kernel object.
+ */
+static struct pktcdvd_kobj* pkt_kobj_create(struct pktcdvd_device *pd,
+					const char* name,
+					struct kobject* parent,
+					struct kobj_type* ktype)
+{
+	struct pktcdvd_kobj *p;
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return NULL;
+	kobject_set_name(&p->kobj, "%s", name);
+	p->kobj.parent = parent;
+	p->kobj.ktype = ktype;
+	p->pd = pd;
+	if (kobject_register(&p->kobj) != 0)
+		return NULL;
+	return p;
+}
+/*
+ * remove a pktcdvd kernel object.
+ */
+static void pkt_kobj_remove(struct pktcdvd_kobj *p)
+{
+	if (p)
+		kobject_unregister(&p->kobj);
+}
+/*
+ * default release function for pktcdvd kernel objects.
+ */
+static void pkt_kobj_release(struct kobject *kobj)
+{
+	kfree(to_pktcdvdkobj(kobj));
+}
+
+
+/**********************************************************
+ *
+ * sysfs interface for pktcdvd
+ * by (C) 2006  Thomas Maier <balagi@justmail.de>
+ *
+ **********************************************************/
+
+#define DEF_ATTR(_obj,_name,_mode) \
+	static struct attribute _obj = { \
+		.name = _name, .owner = THIS_MODULE, .mode = _mode }
+
+/**********************************************************
+  /sys/class/pktcdvd/pktcdvd[0-7]/
+                     stat/reset
+                     stat/packets_started
+                     stat/packets_finished
+                     stat/kb_written
+                     stat/kb_read
+                     stat/kb_read_gather
+                     write_queue/size
+                     write_queue/congestion_off
+                     write_queue/congestion_on
+ **********************************************************/
+
+DEF_ATTR(kobj_pkt_attr_st1, "reset", 0200);
+DEF_ATTR(kobj_pkt_attr_st2, "packets_started", 0444);
+DEF_ATTR(kobj_pkt_attr_st3, "packets_finished", 0444);
+DEF_ATTR(kobj_pkt_attr_st4, "kb_written", 0444);
+DEF_ATTR(kobj_pkt_attr_st5, "kb_read", 0444);
+DEF_ATTR(kobj_pkt_attr_st6, "kb_read_gather", 0444);
+
+static struct attribute *kobj_pkt_attrs_stat[] = {
+	&kobj_pkt_attr_st1,
+	&kobj_pkt_attr_st2,
+	&kobj_pkt_attr_st3,
+	&kobj_pkt_attr_st4,
+	&kobj_pkt_attr_st5,
+	&kobj_pkt_attr_st6,
+	NULL
+};
+
+DEF_ATTR(kobj_pkt_attr_wq1, "size", 0444);
+DEF_ATTR(kobj_pkt_attr_wq2, "congestion_off", 0644);
+DEF_ATTR(kobj_pkt_attr_wq3, "congestion_on",  0644);
+
+static struct attribute *kobj_pkt_attrs_wqueue[] = {
+	&kobj_pkt_attr_wq1,
+	&kobj_pkt_attr_wq2,
+	&kobj_pkt_attr_wq3,
+	NULL
+};
+
+/* declares a char buffer[64] _dbuf, copies data from
+ * _b with length _l into it and ensures that _dbuf ends
+ * with a \0 character.
+ */
+#define DECLARE_BUF_AS_STRING(_dbuf, _b, _l) \
+	char _dbuf[64]; int dlen = (_l) < 0 ? 0 : (_l); \
+	if (dlen >= sizeof(_dbuf)) dlen = sizeof(_dbuf)-1; \
+	memcpy(_dbuf, _b, dlen); _dbuf[dlen] = 0
+
+static ssize_t kobj_pkt_show(struct kobject *kobj,
+			struct attribute *attr, char *data)
+{
+	struct pktcdvd_device *pd = to_pktcdvdkobj(kobj)->pd;
+	int n = 0;
+	int v;
+	if (strcmp(attr->name, "packets_started") == 0) {
+		n = sprintf(data, "%lu\n", pd->stats.pkt_started);
+
+	} else if (strcmp(attr->name, "packets_finished") == 0) {
+		n = sprintf(data, "%lu\n", pd->stats.pkt_ended);
+
+	} else if (strcmp(attr->name, "kb_written") == 0) {
+		n = sprintf(data, "%lu\n", pd->stats.secs_w >> 1);
+
+	} else if (strcmp(attr->name, "kb_read") == 0) {
+		n = sprintf(data, "%lu\n", pd->stats.secs_r >> 1);
+
+	} else if (strcmp(attr->name, "kb_read_gather") == 0) {
+		n = sprintf(data, "%lu\n", pd->stats.secs_rg >> 1);
+
+	} else if (strcmp(attr->name, "size") == 0) {
+		spin_lock(&pd->lock);
+		v = pd->bio_queue_size;
+		spin_unlock(&pd->lock);
+		n = sprintf(data, "%d\n", v);
+
+	} else if (strcmp(attr->name, "congestion_off") == 0) {
+		spin_lock(&pd->lock);
+		v = pd->write_congestion_off;
+		spin_unlock(&pd->lock);
+		n = sprintf(data, "%d\n", v);
+
+	} else if (strcmp(attr->name, "congestion_on") == 0) {
+		spin_lock(&pd->lock);
+		v = pd->write_congestion_on;
+		spin_unlock(&pd->lock);
+		n = sprintf(data, "%d\n", v);
+	}
+	return n;
+}
+
+static void init_write_congestion_marks(int* lo, int* hi)
+{
+	if (*hi > 0) {
+		*hi = max(*hi, 500);
+		*hi = min(*hi, 1000000);
+		if (*lo <= 0)
+			*lo = *hi - 100;
+		else {
+			*lo = min(*lo, *hi - 100);
+			*lo = max(*lo, 100);
+		}
+	} else {
+		*hi = -1;
+		*lo = -1;
+	}
+}
+
+static ssize_t kobj_pkt_store(struct kobject *kobj,
+			struct attribute *attr,
+			const char *data, size_t len)
+{
+	struct pktcdvd_device *pd = to_pktcdvdkobj(kobj)->pd;
+	int val;
+	DECLARE_BUF_AS_STRING(dbuf, data, len); /* ensure sscanf scans a string */
+
+	if (strcmp(attr->name, "reset") == 0 && dlen > 0) {
+		pd->stats.pkt_started = 0;
+		pd->stats.pkt_ended = 0;
+		pd->stats.secs_w = 0;
+		pd->stats.secs_rg = 0;
+		pd->stats.secs_r = 0;
+
+	} else if (strcmp(attr->name, "congestion_off") == 0
+		   && sscanf(dbuf, "%d", &val) == 1) {
+		spin_lock(&pd->lock);
+		pd->write_congestion_off = val;
+		init_write_congestion_marks(&pd->write_congestion_off,
+					&pd->write_congestion_on);
+		spin_unlock(&pd->lock);
+
+	} else if (strcmp(attr->name, "congestion_on") == 0
+		   && sscanf(dbuf, "%d", &val) == 1) {
+		spin_lock(&pd->lock);
+		pd->write_congestion_on = val;
+		init_write_congestion_marks(&pd->write_congestion_off,
+					&pd->write_congestion_on);
+		spin_unlock(&pd->lock);
+	}
+	return len;
+}
+
+static struct sysfs_ops kobj_pkt_ops = {
+	.show = kobj_pkt_show,
+	.store = kobj_pkt_store
+};
+static struct kobj_type kobj_pkt_type_stat = {
+	.release = pkt_kobj_release,
+	.sysfs_ops = &kobj_pkt_ops,
+	.default_attrs = kobj_pkt_attrs_stat
+};
+static struct kobj_type kobj_pkt_type_wqueue = {
+	.release = pkt_kobj_release,
+	.sysfs_ops = &kobj_pkt_ops,
+	.default_attrs = kobj_pkt_attrs_wqueue
+};
+
+static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
+{
+	if (class_pktcdvd) {
+		pd->clsdev = class_device_create(class_pktcdvd,
+					NULL, pd->pkt_dev,
+					NULL, "%s", pd->name);
+		if (IS_ERR(pd->clsdev))
+			pd->clsdev = NULL;
+	}
+	if (pd->clsdev) {
+		pd->kobj_stat = pkt_kobj_create(pd, "stat",
+					&pd->clsdev->kobj,
+					&kobj_pkt_type_stat);
+		pd->kobj_wqueue = pkt_kobj_create(pd, "write_queue",
+					&pd->clsdev->kobj,
+					&kobj_pkt_type_wqueue);
+	}
+}
+
+static void pkt_sysfs_dev_remove(struct pktcdvd_device *pd)
+{
+	pkt_kobj_remove(pd->kobj_stat);
+	pkt_kobj_remove(pd->kobj_wqueue);
+	if (class_pktcdvd)
+		class_device_destroy(class_pktcdvd, pd->pkt_dev);
+}
+
+
+/********************************************************************
+  /sys/class/pktcdvd/
+                     add            map block device
+                     remove         unmap packet dev
+                     device_map     show mappings
+ *******************************************************************/
+
+static void class_pktcdvd_release(struct class *cls)
+{
+	kfree(cls);
+}
+static ssize_t class_pktcdvd_show_map(struct class *c, char *data)
+{
+	int n = 0;
+	int idx;
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+	for (idx = 0; idx < MAX_WRITERS; idx++) {
+		struct pktcdvd_device *pd = pkt_devs[idx];
+		if (!pd)
+			continue;
+		n += sprintf(data+n, "%s %u:%u %u:%u\n",
+			pd->name,
+			MAJOR(pd->pkt_dev), MINOR(pd->pkt_dev),
+			MAJOR(pd->bdev->bd_dev),
+			MINOR(pd->bdev->bd_dev));
+	}
+	mutex_unlock(&ctl_mutex);
+	return n;
+}
+
+static ssize_t class_pktcdvd_store_add(struct class *c, const char *buf,
+					size_t count)
+{
+	unsigned int major, minor;
+	DECLARE_BUF_AS_STRING(dbuf, buf, count);
+	if (sscanf(dbuf, "%u:%u", &major, &minor) == 2) {
+		pkt_setup_dev(MKDEV(major, minor), NULL);
+		return count;
+	}
+	return -EINVAL;
+}
+
+static ssize_t class_pktcdvd_store_remove(struct class *c, const char *buf,
+					size_t count)
+{
+	unsigned int major, minor;
+	DECLARE_BUF_AS_STRING(dbuf, buf, count);
+	if (sscanf(dbuf, "%u:%u", &major, &minor) == 2) {
+		pkt_remove_dev(MKDEV(major, minor));
+		return count;
+	}
+	return -EINVAL;
+}
+
+static struct class_attribute class_pktcdvd_attrs[] = {
+ __ATTR(add,            0200, NULL, class_pktcdvd_store_add),
+ __ATTR(remove,         0200, NULL, class_pktcdvd_store_remove),
+ __ATTR(device_map,     0444, class_pktcdvd_show_map, NULL),
+ __ATTR_NULL
+};
+
+
+static int pkt_sysfs_init(void)
+{
+	int ret = 0;
+
+	/*
+	 * create control files in sysfs
+	 * /sys/class/pktcdvd/...
+	 */
+	class_pktcdvd = kzalloc(sizeof(*class_pktcdvd), GFP_KERNEL);
+	if (!class_pktcdvd)
+		return -ENOMEM;
+	class_pktcdvd->name = DRIVER_NAME;
+	class_pktcdvd->owner = THIS_MODULE;
+	class_pktcdvd->class_release = class_pktcdvd_release;
+	class_pktcdvd->class_attrs = class_pktcdvd_attrs;
+	ret = class_register(class_pktcdvd);
+	if (ret) {
+		kfree(class_pktcdvd);
+		class_pktcdvd = NULL;
+		printk(DRIVER_NAME": failed to create class pktcdvd\n");
+		return ret;
+	}
+	return 0;
+}
+
+static void pkt_sysfs_cleanup(void)
+{
+	if (class_pktcdvd)
+		class_destroy(class_pktcdvd);
+	class_pktcdvd = NULL;
+}
+
+/********************************************************************
+  entries in debugfs
+
+  /debugfs/pktcdvd[0-7]/
+			info
+
+ *******************************************************************/
+
+static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
+{
+	return pkt_seq_show(m, p);
+}
+
+static int pkt_debugfs_fops_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pkt_debugfs_seq_show, inode->i_private);
+}
+
+static struct file_operations debug_fops = {
+	.open		= pkt_debugfs_fops_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+	.owner		= THIS_MODULE,
+};
+
+static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
+{
+	if (!pkt_debugfs_root)
+		return;
+	pd->dfs_f_info = NULL;
+	pd->dfs_d_root = debugfs_create_dir(pd->name, pkt_debugfs_root);
+	if (IS_ERR(pd->dfs_d_root)) {
+		pd->dfs_d_root = NULL;
+		return;
+	}
+	pd->dfs_f_info = debugfs_create_file("info", S_IRUGO,
+				pd->dfs_d_root, pd, &debug_fops);
+	if (IS_ERR(pd->dfs_f_info)) {
+		pd->dfs_f_info = NULL;
+		return;
+	}
+}
+
+static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd)
+{
+	if (!pkt_debugfs_root)
+		return;
+	if (pd->dfs_f_info)
+		debugfs_remove(pd->dfs_f_info);
+	pd->dfs_f_info = NULL;
+	if (pd->dfs_d_root)
+		debugfs_remove(pd->dfs_d_root);
+	pd->dfs_d_root = NULL;
+}
+
+static void pkt_debugfs_init(void)
+{
+	pkt_debugfs_root = debugfs_create_dir(DRIVER_NAME, NULL);
+	if (IS_ERR(pkt_debugfs_root)) {
+		pkt_debugfs_root = NULL;
+		return;
+	}
+}
+
+static void pkt_debugfs_cleanup(void)
+{
+	if (!pkt_debugfs_root)
+		return;
+	debugfs_remove(pkt_debugfs_root);
+	pkt_debugfs_root = NULL;
+}
+
+/* ----------------------------------------------------------*/
+
 
 static void pkt_bio_finished(struct pktcdvd_device *pd)
 {
@@ -347,47 +765,34 @@ static inline struct bio *pkt_get_list_first(struct bio **list_head, struct bio
  */
 static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *cgc)
 {
-	char sense[SCSI_SENSE_BUFFERSIZE];
-	request_queue_t *q;
+	request_queue_t *q = bdev_get_queue(pd->bdev);
 	struct request *rq;
-	DECLARE_COMPLETION_ONSTACK(wait);
-	int err = 0;
+	int ret = 0;
 
-	q = bdev_get_queue(pd->bdev);
+	rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ?
+			     WRITE : READ, __GFP_WAIT);
+
+	if (cgc->buflen) {
+		if (blk_rq_map_kern(q, rq, cgc->buffer, cgc->buflen, __GFP_WAIT))
+			goto out;
+	}
+
+	rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);
+	memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
+	if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
+		memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);
 
-	rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ? WRITE : READ,
-			     __GFP_WAIT);
-	rq->errors = 0;
-	rq->rq_disk = pd->bdev->bd_disk;
-	rq->bio = NULL;
-	rq->buffer = NULL;
 	rq->timeout = 60*HZ;
-	rq->data = cgc->buffer;
-	rq->data_len = cgc->buflen;
-	rq->sense = sense;
-	memset(sense, 0, sizeof(sense));
-	rq->sense_len = 0;
 	rq->cmd_type = REQ_TYPE_BLOCK_PC;
 	rq->cmd_flags |= REQ_HARDBARRIER;
 	if (cgc->quiet)
 		rq->cmd_flags |= REQ_QUIET;
-	memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
-	if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
-		memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);
-	rq->cmd_len = COMMAND_SIZE(rq->cmd[0]);
-
-	rq->ref_count++;
-	rq->end_io_data = &wait;
-	rq->end_io = blk_end_sync_rq;
-	elv_add_request(q, rq, ELEVATOR_INSERT_BACK, 1);
-	generic_unplug_device(q);
-	wait_for_completion(&wait);
-
-	if (rq->errors)
-		err = -EIO;
 
+	blk_execute_rq(rq->q, pd->bdev->bd_disk, rq, 0);
+	ret = rq->errors;
+out:
 	blk_put_request(rq);
-	return err;
+	return ret;
 }
 
 /*
@@ -893,6 +1298,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	sector_t zone = 0; /* Suppress gcc warning */
 	struct pkt_rb_node *node, *first_node;
 	struct rb_node *n;
+	int wakeup;
 
 	VPRINTK("handle_queue\n");
 
@@ -965,7 +1371,13 @@ try_next_bio:
 		pkt->write_size += bio->bi_size / CD_FRAMESIZE;
 		spin_unlock(&pkt->lock);
 	}
+	/* check write congestion marks, and if bio_queue_size is
+	   below, wake up any waiters */
+	wakeup = (pd->write_congestion_on > 0
+	 		&& pd->bio_queue_size <= pd->write_congestion_off);
 	spin_unlock(&pd->lock);
+	if (wakeup)
+		blk_clear_queue_congested(pd->disk->queue, WRITE);
 
 	pkt->sleep_time = max(PACKET_WAIT_TIME, 1);
 	pkt_set_state(pkt, PACKET_WAITING_STATE);
@@ -2178,6 +2590,23 @@ static int pkt_make_request(request_queue_t *q, struct bio *bio)
 	}
 	spin_unlock(&pd->cdrw.active_list_lock);
 
+ 	/*
+	 * Test if there is enough room left in the bio work queue
+	 * (queue size >= congestion on mark).
+	 * If not, wait till the work queue size is below the congestion off mark.
+	 */
+	spin_lock(&pd->lock);
+	if (pd->write_congestion_on > 0
+	    && pd->bio_queue_size >= pd->write_congestion_on) {
+		blk_set_queue_congested(q, WRITE);
+		do {
+			spin_unlock(&pd->lock);
+			congestion_wait(WRITE, HZ);
+			spin_lock(&pd->lock);
+		} while(pd->bio_queue_size > pd->write_congestion_off);
+	}
+	spin_unlock(&pd->lock);
+
 	/*
 	 * No matching packet found. Store the bio in the work queue.
 	 */
@@ -2297,6 +2726,9 @@ static int pkt_seq_show(struct seq_file *m, void *p)
 	seq_printf(m, "\tstate:\t\t\ti:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
 		   states[0], states[1], states[2], states[3], states[4], states[5]);
 
+	seq_printf(m, "\twrite congestion marks:\toff=%d on=%d\n",
+			pd->write_congestion_off,
+			pd->write_congestion_on);
 	return 0;
 }
 
@@ -2436,36 +2868,33 @@ static struct block_device_operations pktcdvd_ops = {
 /*
  * Set up mapping from pktcdvd device to CD-ROM device.
  */
-static int pkt_setup_dev(struct pkt_ctrl_command *ctrl_cmd)
+static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
 {
 	int idx;
 	int ret = -ENOMEM;
 	struct pktcdvd_device *pd;
 	struct gendisk *disk;
-	dev_t dev = new_decode_dev(ctrl_cmd->dev);
+
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 
 	for (idx = 0; idx < MAX_WRITERS; idx++)
 		if (!pkt_devs[idx])
 			break;
 	if (idx == MAX_WRITERS) {
 		printk(DRIVER_NAME": max %d writers supported\n", MAX_WRITERS);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto out_mutex;
 	}
 
 	pd = kzalloc(sizeof(struct pktcdvd_device), GFP_KERNEL);
 	if (!pd)
-		return ret;
+		goto out_mutex;
 
 	pd->rb_pool = mempool_create_kmalloc_pool(PKT_RB_POOL_SIZE,
 						  sizeof(struct pkt_rb_node));
 	if (!pd->rb_pool)
 		goto out_mem;
 
-	disk = alloc_disk(1);
-	if (!disk)
-		goto out_mem;
-	pd->disk = disk;
-
 	INIT_LIST_HEAD(&pd->cdrw.pkt_free_list);
 	INIT_LIST_HEAD(&pd->cdrw.pkt_active_list);
 	spin_lock_init(&pd->cdrw.active_list_lock);
@@ -2476,11 +2905,18 @@ static int pkt_setup_dev(struct pkt_ctrl_command *ctrl_cmd)
 	init_waitqueue_head(&pd->wqueue);
 	pd->bio_queue = RB_ROOT;
 
+	pd->write_congestion_on  = write_congestion_on;
+	pd->write_congestion_off = write_congestion_off;
+
+	disk = alloc_disk(1);
+	if (!disk)
+		goto out_mem;
+	pd->disk = disk;
 	disk->major = pktdev_major;
 	disk->first_minor = idx;
 	disk->fops = &pktcdvd_ops;
 	disk->flags = GENHD_FL_REMOVABLE;
-	sprintf(disk->disk_name, DRIVER_NAME"%d", idx);
+	strcpy(disk->disk_name, pd->name);
 	disk->private_data = pd;
 	disk->queue = blk_alloc_queue(GFP_KERNEL);
 	if (!disk->queue)
@@ -2492,8 +2928,15 @@ static int pkt_setup_dev(struct pkt_ctrl_command *ctrl_cmd)
 		goto out_new_dev;
 
 	add_disk(disk);
+
+	pkt_sysfs_dev_new(pd);
+	pkt_debugfs_dev_new(pd);
+
 	pkt_devs[idx] = pd;
-	ctrl_cmd->pkt_dev = new_encode_dev(pd->pkt_dev);
+	if (pkt_dev)
+		*pkt_dev = pd->pkt_dev;
+
+	mutex_unlock(&ctl_mutex);
 	return 0;
 
 out_new_dev:
@@ -2504,17 +2947,22 @@ out_mem:
 	if (pd->rb_pool)
 		mempool_destroy(pd->rb_pool);
 	kfree(pd);
+out_mutex:
+	mutex_unlock(&ctl_mutex);
+	printk(DRIVER_NAME": setup of pktcdvd device failed\n");
 	return ret;
 }
 
 /*
  * Tear down mapping from pktcdvd device to CD-ROM device.
  */
-static int pkt_remove_dev(struct pkt_ctrl_command *ctrl_cmd)
+static int pkt_remove_dev(dev_t pkt_dev)
 {
 	struct pktcdvd_device *pd;
 	int idx;
-	dev_t pkt_dev = new_decode_dev(ctrl_cmd->pkt_dev);
+	int ret = 0;
+
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 
 	for (idx = 0; idx < MAX_WRITERS; idx++) {
 		pd = pkt_devs[idx];
@@ -2523,15 +2971,22 @@ static int pkt_remove_dev(struct pkt_ctrl_command *ctrl_cmd)
 	}
 	if (idx == MAX_WRITERS) {
 		DPRINTK(DRIVER_NAME": dev not setup\n");
-		return -ENXIO;
+		ret = -ENXIO;
+		goto out;
 	}
 
-	if (pd->refcnt > 0)
-		return -EBUSY;
-
+	if (pd->refcnt > 0) {
+		ret = -EBUSY;
+		goto out;
+	}
 	if (!IS_ERR(pd->cdrw.thread))
 		kthread_stop(pd->cdrw.thread);
 
+	pkt_devs[idx] = NULL;
+
+	pkt_debugfs_dev_remove(pd);
+	pkt_sysfs_dev_remove(pd);
+
 	blkdev_put(pd->bdev);
 
 	remove_proc_entry(pd->name, pkt_proc);
@@ -2541,18 +2996,24 @@ static int pkt_remove_dev(struct pkt_ctrl_command *ctrl_cmd)
 	blk_cleanup_queue(pd->disk->queue);
 	put_disk(pd->disk);
 
-	pkt_devs[idx] = NULL;
 	mempool_destroy(pd->rb_pool);
 	kfree(pd);
 
 	/* This is safe: open() is still holding a reference. */
 	module_put(THIS_MODULE);
-	return 0;
+
+out:
+	mutex_unlock(&ctl_mutex);
+	return ret;
 }
 
 static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd)
 {
-	struct pktcdvd_device *pd = pkt_find_dev_from_minor(ctrl_cmd->dev_index);
+	struct pktcdvd_device *pd;
+
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+
+	pd = pkt_find_dev_from_minor(ctrl_cmd->dev_index);
 	if (pd) {
 		ctrl_cmd->dev = new_encode_dev(pd->bdev->bd_dev);
 		ctrl_cmd->pkt_dev = new_encode_dev(pd->pkt_dev);
@@ -2561,6 +3022,8 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd)
 		ctrl_cmd->pkt_dev = 0;
 	}
 	ctrl_cmd->num_devices = MAX_WRITERS;
+
+	mutex_unlock(&ctl_mutex);
 }
 
 static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
@@ -2568,6 +3031,7 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
 	void __user *argp = (void __user *)arg;
 	struct pkt_ctrl_command ctrl_cmd;
 	int ret = 0;
+	dev_t pkt_dev = 0;
 
 	if (cmd != PACKET_CTRL_CMD)
 		return -ENOTTY;
@@ -2579,21 +3043,16 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
 	case PKT_CTRL_CMD_SETUP:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-		ret = pkt_setup_dev(&ctrl_cmd);
-		mutex_unlock(&ctl_mutex);
+		ret = pkt_setup_dev(new_decode_dev(ctrl_cmd.dev), &pkt_dev);
+		ctrl_cmd.pkt_dev = new_encode_dev(pkt_dev);
 		break;
 	case PKT_CTRL_CMD_TEARDOWN:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-		ret = pkt_remove_dev(&ctrl_cmd);
-		mutex_unlock(&ctl_mutex);
+		ret = pkt_remove_dev(new_decode_dev(ctrl_cmd.pkt_dev));
 		break;
 	case PKT_CTRL_CMD_STATUS:
-		mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 		pkt_get_status(&ctrl_cmd);
-		mutex_unlock(&ctl_mutex);
 		break;
 	default:
 		return -ENOTTY;
@@ -2620,6 +3079,8 @@ static int __init pkt_init(void)
 {
 	int ret;
 
+	mutex_init(&ctl_mutex);
+
 	psd_pool = mempool_create_kmalloc_pool(PSD_POOL_SIZE,
 					sizeof(struct packet_stacked_data));
 	if (!psd_pool)
@@ -2633,18 +3094,25 @@ static int __init pkt_init(void)
 	if (!pktdev_major)
 		pktdev_major = ret;
 
+	ret = pkt_sysfs_init();
+	if (ret)
+		goto out;
+
+	pkt_debugfs_init();
+
 	ret = misc_register(&pkt_misc);
 	if (ret) {
 		printk(DRIVER_NAME": Unable to register misc device\n");
-		goto out;
+		goto out_misc;
 	}
 
-	mutex_init(&ctl_mutex);
-
 	pkt_proc = proc_mkdir(DRIVER_NAME, proc_root_driver);
 
 	return 0;
 
+out_misc:
+	pkt_debugfs_cleanup();
+	pkt_sysfs_cleanup();
 out:
 	unregister_blkdev(pktdev_major, DRIVER_NAME);
 out2:
@@ -2656,6 +3124,10 @@ static void __exit pkt_exit(void)
 {
 	remove_proc_entry(DRIVER_NAME, proc_root_driver);
 	misc_deregister(&pkt_misc);
+
+	pkt_debugfs_cleanup();
+	pkt_sysfs_cleanup();
+
 	unregister_blkdev(pktdev_major, DRIVER_NAME);
 	mempool_destroy(psd_pool);
 }
diff --git a/drivers/block/swim_iop.c b/drivers/block/swim_iop.c
deleted file mode 100644
index ed7b06cf3e6..00000000000
--- a/drivers/block/swim_iop.c
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * Driver for the SWIM (Super Woz Integrated Machine) IOP
- * floppy controller on the Macintosh IIfx and Quadra 900/950
- *
- * Written by Joshua M. Thompson (funaho@jurai.org)
- * based on the SWIM3 driver (c) 1996 by Paul Mackerras.
- *
- * 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; either version
- * 2 of the License, or (at your option) any later version.
- *
- * 1999-06-12 (jmt) - Initial implementation.
- */
-
-/*
- * -------------------
- * Theory of Operation
- * -------------------
- *
- * Since the SWIM IOP is message-driven we implement a simple request queue
- * system.  One outstanding request may be queued at any given time (this is
- * an IOP limitation); only when that request has completed can a new request
- * be sent.
- */
-
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/fd.h>
-#include <linux/ioctl.h>
-#include <linux/blkdev.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/mac_iop.h>
-#include <asm/swim_iop.h>
-
-#define DRIVER_VERSION "Version 0.1 (1999-06-12)"
-
-#define MAX_FLOPPIES	4
-
-enum swim_state {
-	idle,
-	available,
-	revalidating,
-	transferring,
-	ejecting
-};
-
-struct floppy_state {
-	enum swim_state state;
-	int	drive_num;	/* device number */
-	int	secpercyl;	/* disk geometry information */
-	int	secpertrack;
-	int	total_secs;
-	int	write_prot;	/* 1 if write-protected, 0 if not, -1 dunno */
-	int	ref_count;
-	struct timer_list timeout;
-	int	ejected;
-	struct wait_queue *wait;
-	int	wanted;
-	int	timeout_pending;
-};
-
-struct swim_iop_req {
-	int	sent;
-	int	complete;
-	__u8	command[32];
-	struct floppy_state *fs;
-	void	(*done)(struct swim_iop_req *);
-};
-
-static struct swim_iop_req *current_req;
-static int floppy_count;
-
-static struct floppy_state floppy_states[MAX_FLOPPIES];
-static DEFINE_SPINLOCK(swim_iop_lock);
-
-#define CURRENT elv_next_request(swim_queue)
-
-static char *drive_names[7] = {
-	"not installed",	/* DRV_NONE    */
-	"unknown (1)",		/* DRV_UNKNOWN */
-	"a 400K drive",		/* DRV_400K    */
-	"an 800K drive"		/* DRV_800K    */
-	"unknown (4)",		/* ????        */
-	"an FDHD",		/* DRV_FDHD    */
-	"unknown (6)",		/* ????        */
-	"an Apple HD20"		/* DRV_HD20    */
-};
-
-int swimiop_init(void);
-static void swimiop_init_request(struct swim_iop_req *);
-static int swimiop_send_request(struct swim_iop_req *);
-static void swimiop_receive(struct iop_msg *);
-static void swimiop_status_update(int, struct swim_drvstatus *);
-static int swimiop_eject(struct floppy_state *fs);
-
-static int floppy_ioctl(struct inode *inode, struct file *filp,
-			unsigned int cmd, unsigned long param);
-static int floppy_open(struct inode *inode, struct file *filp);
-static int floppy_release(struct inode *inode, struct file *filp);
-static int floppy_check_change(struct gendisk *disk);
-static int floppy_revalidate(struct gendisk *disk);
-static int grab_drive(struct floppy_state *fs, enum swim_state state,
-		      int interruptible);
-static void release_drive(struct floppy_state *fs);
-static void set_timeout(struct floppy_state *fs, int nticks,
-			void (*proc)(unsigned long));
-static void fd_request_timeout(unsigned long);
-static void do_fd_request(request_queue_t * q);
-static void start_request(struct floppy_state *fs);
-
-static struct block_device_operations floppy_fops = {
-	.open		= floppy_open,
-	.release	= floppy_release,
-	.ioctl		= floppy_ioctl,
-	.media_changed	= floppy_check_change,
-	.revalidate_disk= floppy_revalidate,
-};
-
-static struct request_queue *swim_queue;
-/*
- * SWIM IOP initialization
- */
-
-int swimiop_init(void)
-{
-	volatile struct swim_iop_req req;
-	struct swimcmd_status *cmd = (struct swimcmd_status *) &req.command[0];
-	struct swim_drvstatus *ds = &cmd->status;
-	struct floppy_state *fs;
-	int i;
-
-	current_req = NULL;
-	floppy_count = 0;
-
-	if (!iop_ism_present)
-		return -ENODEV;
-
-	if (register_blkdev(FLOPPY_MAJOR, "fd"))
-		return -EBUSY;
-
-	swim_queue = blk_init_queue(do_fd_request, &swim_iop_lock);
-	if (!swim_queue) {
-		unregister_blkdev(FLOPPY_MAJOR, "fd");
-		return -ENOMEM;
-	}
-
-	printk("SWIM-IOP: %s by Joshua M. Thompson (funaho@jurai.org)\n",
-		DRIVER_VERSION);
-
-	if (iop_listen(SWIM_IOP, SWIM_CHAN, swimiop_receive, "SWIM") != 0) {
-		printk(KERN_ERR "SWIM-IOP: IOP channel already in use; can't initialize.\n");
-		unregister_blkdev(FLOPPY_MAJOR, "fd");
-		blk_cleanup_queue(swim_queue);
-		return -EBUSY;
-	}
-
-	printk(KERN_ERR "SWIM_IOP: probing for installed drives.\n");
-
-	for (i = 0 ; i < MAX_FLOPPIES ; i++) {
-		memset(&floppy_states[i], 0, sizeof(struct floppy_state));
-		fs = &floppy_states[floppy_count];
-
-		swimiop_init_request(&req);
-		cmd->code = CMD_STATUS;
-		cmd->drive_num = i + 1;
-		if (swimiop_send_request(&req) != 0) continue;
-		while (!req.complete);
-		if (cmd->error != 0) {
-			printk(KERN_ERR "SWIM-IOP: probe on drive %d returned error %d\n", i, (uint) cmd->error);
-			continue;
-		}
-		if (ds->installed != 0x01) continue;
-		printk("SWIM-IOP: drive %d is %s (%s, %s, %s, %s)\n", i,
-			drive_names[ds->info.type],
-			ds->info.external? "ext" : "int",
-			ds->info.scsi? "scsi" : "floppy",
-			ds->info.fixed? "fixed" : "removable",
-			ds->info.secondary? "secondary" : "primary");
-		swimiop_status_update(floppy_count, ds);
-		fs->state = idle;
-
-		init_timer(&fs->timeout);
-		floppy_count++;
-	}
-	printk("SWIM-IOP: detected %d installed drives.\n", floppy_count);
-
-	for (i = 0; i < floppy_count; i++) {
-		struct gendisk *disk = alloc_disk(1);
-		if (!disk)
-			continue;
-		disk->major = FLOPPY_MAJOR;
-		disk->first_minor = i;
-		disk->fops = &floppy_fops;
-		sprintf(disk->disk_name, "fd%d", i);
-		disk->private_data = &floppy_states[i];
-		disk->queue = swim_queue;
-		set_capacity(disk, 2880 * 2);
-		add_disk(disk);
-	}
-
-	return 0;
-}
-
-static void swimiop_init_request(struct swim_iop_req *req)
-{
-	req->sent = 0;
-	req->complete = 0;
-	req->done = NULL;
-}
-
-static int swimiop_send_request(struct swim_iop_req *req)
-{
-	unsigned long flags;
-	int err;
-
-	/* It's doubtful an interrupt routine would try to send */
-	/* a SWIM request, but I'd rather play it safe here.    */
-
-	local_irq_save(flags);
-
-	if (current_req != NULL) {
-		local_irq_restore(flags);
-		return -ENOMEM;
-	}
-
-	current_req = req;
-
-	/* Interrupts should be back on for iop_send_message() */
-
-	local_irq_restore(flags);
-
-	err = iop_send_message(SWIM_IOP, SWIM_CHAN, (void *) req,
-				sizeof(req->command), (__u8 *) &req->command[0],
-				swimiop_receive);
-
-	/* No race condition here; we own current_req at this point */
-
-	if (err) {
-		current_req = NULL;
-	} else {
-		req->sent = 1;
-	}
-	return err;
-}
-
-/*
- * Receive a SWIM message from the IOP.
- *
- * This will be called in two cases:
- *
- * 1. A message has been successfully sent to the IOP.
- * 2. An unsolicited message was received from the IOP.
- */
-
-void swimiop_receive(struct iop_msg *msg)
-{
-	struct swim_iop_req *req;
-	struct swimmsg_status *sm;
-	struct swim_drvstatus *ds;
-
-	req = current_req;
-
-	switch(msg->status) {
-		case IOP_MSGSTATUS_COMPLETE:
-			memcpy(&req->command[0], &msg->reply[0], sizeof(req->command));
-			req->complete = 1;
-			if (req->done) (*req->done)(req);
-			current_req = NULL;
-			break;
-		case IOP_MSGSTATUS_UNSOL:
-			sm = (struct swimmsg_status *) &msg->message[0];
-			ds = &sm->status;
-			swimiop_status_update(sm->drive_num, ds);
-			iop_complete_message(msg);
-			break;
-	}
-}
-
-static void swimiop_status_update(int drive_num, struct swim_drvstatus *ds)
-{
-	struct floppy_state *fs = &floppy_states[drive_num];
-
-	fs->write_prot = (ds->write_prot == 0x80);
-	if ((ds->disk_in_drive != 0x01) && (ds->disk_in_drive != 0x02)) {
-		fs->ejected = 1;
-	} else {
-		fs->ejected = 0;
-	}
-	switch(ds->info.type) {
-		case DRV_400K:
-			fs->secpercyl = 10;
-			fs->secpertrack = 10;
-			fs->total_secs = 800;
-			break;
-		case DRV_800K:
-			fs->secpercyl = 20;
-			fs->secpertrack = 10;
-			fs->total_secs = 1600;
-			break;
-		case DRV_FDHD:
-			fs->secpercyl = 36;
-			fs->secpertrack = 18;
-			fs->total_secs = 2880;
-			break;
-		default:
-			fs->secpercyl = 0;
-			fs->secpertrack = 0;
-			fs->total_secs = 0;
-			break;
-	}
-}
-
-static int swimiop_eject(struct floppy_state *fs)
-{
-	int err, n;
-	struct swim_iop_req req;
-	struct swimcmd_eject *cmd = (struct swimcmd_eject *) &req.command[0];
-
-	err = grab_drive(fs, ejecting, 1);
-	if (err) return err;
-
-	swimiop_init_request(&req);
-	cmd->code = CMD_EJECT;
-	cmd->drive_num = fs->drive_num;
-	err = swimiop_send_request(&req);
-	if (err) {
-		release_drive(fs);
-		return err;
-	}
-	for (n = 2*HZ; n > 0; --n) {
-		if (req.complete) break;
-		if (signal_pending(current)) {
-			err = -EINTR;
-			break;
-		}
-		schedule_timeout_interruptible(1);
-	}
-	release_drive(fs);
-	return cmd->error;
-}
-
-static struct floppy_struct floppy_type =
-	{ 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,NULL };	/*  7 1.44MB 3.5"   */
-
-static int floppy_ioctl(struct inode *inode, struct file *filp,
-			unsigned int cmd, unsigned long param)
-{
-	struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
-	int err;
-
-	if ((cmd & 0x80) && !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	switch (cmd) {
-	case FDEJECT:
-		if (fs->ref_count != 1)
-			return -EBUSY;
-		err = swimiop_eject(fs);
-		return err;
-	case FDGETPRM:
-	        if (copy_to_user((void *) param, (void *) &floppy_type,
-				 sizeof(struct floppy_struct)))
-			return -EFAULT;
-		return 0;
-	}
-	return -ENOTTY;
-}
-
-static int floppy_open(struct inode *inode, struct file *filp)
-{
-	struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
-
-	if (fs->ref_count == -1 || filp->f_flags & O_EXCL)
-		return -EBUSY;
-
-	if ((filp->f_flags & O_NDELAY) == 0 && (filp->f_mode & 3)) {
-		check_disk_change(inode->i_bdev);
-		if (fs->ejected)
-			return -ENXIO;
-	}
-
-	if ((filp->f_mode & 2) && fs->write_prot)
-		return -EROFS;
-
-	if (filp->f_flags & O_EXCL)
-		fs->ref_count = -1;
-	else
-		++fs->ref_count;
-
-	return 0;
-}
-
-static int floppy_release(struct inode *inode, struct file *filp)
-{
-	struct floppy_state *fs = inode->i_bdev->bd_disk->private_data;
-	if (fs->ref_count > 0)
-		fs->ref_count--;
-	return 0;
-}
-
-static int floppy_check_change(struct gendisk *disk)
-{
-	struct floppy_state *fs = disk->private_data;
-	return fs->ejected;
-}
-
-static int floppy_revalidate(struct gendisk *disk)
-{
-	struct floppy_state *fs = disk->private_data;
-	grab_drive(fs, revalidating, 0);
-	/* yadda, yadda */
-	release_drive(fs);
-	return 0;
-}
-
-static void floppy_off(unsigned int nr)
-{
-}
-
-static int grab_drive(struct floppy_state *fs, enum swim_state state,
-		      int interruptible)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (fs->state != idle) {
-		++fs->wanted;
-		while (fs->state != available) {
-			if (interruptible && signal_pending(current)) {
-				--fs->wanted;
-				local_irq_restore(flags);
-				return -EINTR;
-			}
-			interruptible_sleep_on(&fs->wait);
-		}
-		--fs->wanted;
-	}
-	fs->state = state;
-	local_irq_restore(flags);
-	return 0;
-}
-
-static void release_drive(struct floppy_state *fs)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	fs->state = idle;
-	start_request(fs);
-	local_irq_restore(flags);
-}
-
-static void set_timeout(struct floppy_state *fs, int nticks,
-			void (*proc)(unsigned long))
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (fs->timeout_pending)
-		del_timer(&fs->timeout);
-	init_timer(&fs->timeout);
-	fs->timeout.expires = jiffies + nticks;
-	fs->timeout.function = proc;
-	fs->timeout.data = (unsigned long) fs;
-	add_timer(&fs->timeout);
-	fs->timeout_pending = 1;
-	local_irq_restore(flags);
-}
-
-static void do_fd_request(request_queue_t * q)
-{
-	int i;
-
-	for (i = 0 ; i < floppy_count ; i++) {
-		start_request(&floppy_states[i]);
-	}
-}
-
-static void fd_request_complete(struct swim_iop_req *req)
-{
-	struct floppy_state *fs = req->fs;
-	struct swimcmd_rw *cmd = (struct swimcmd_rw *) &req->command[0];
-
-	del_timer(&fs->timeout);
-	fs->timeout_pending = 0;
-	fs->state = idle;
-	if (cmd->error) {
-		printk(KERN_ERR "SWIM-IOP: error %d on read/write request.\n", cmd->error);
-		end_request(CURRENT, 0);
-	} else {
-		CURRENT->sector += cmd->num_blocks;
-		CURRENT->current_nr_sectors -= cmd->num_blocks;
-		if (CURRENT->current_nr_sectors <= 0) {
-			end_request(CURRENT, 1);
-			return;
-		}
-	}
-	start_request(fs);
-}
-
-static void fd_request_timeout(unsigned long data)
-{
-	struct floppy_state *fs = (struct floppy_state *) data;
-
-	fs->timeout_pending = 0;
-	end_request(CURRENT, 0);
-	fs->state = idle;
-}
-
-static void start_request(struct floppy_state *fs)
-{
-	volatile struct swim_iop_req req;
-	struct swimcmd_rw *cmd = (struct swimcmd_rw *) &req.command[0];
-
-	if (fs->state == idle && fs->wanted) {
-		fs->state = available;
-		wake_up(&fs->wait);
-		return;
-	}
-	while (CURRENT && fs->state == idle) {
-		if (CURRENT->bh && !buffer_locked(CURRENT->bh))
-			panic("floppy: block not locked");
-#if 0
-		printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%ld buf=%p\n",
-		       CURRENT->rq_disk->disk_name, CURRENT->cmd,
-		       CURRENT->sector, CURRENT->nr_sectors, CURRENT->buffer);
-		printk("           errors=%d current_nr_sectors=%ld\n",
-		      CURRENT->errors, CURRENT->current_nr_sectors);
-#endif
-
-		if (CURRENT->sector < 0 || CURRENT->sector >= fs->total_secs) {
-			end_request(CURRENT, 0);
-			continue;
-		}
-		if (CURRENT->current_nr_sectors == 0) {
-			end_request(CURRENT, 1);
-			continue;
-		}
-		if (fs->ejected) {
-			end_request(CURRENT, 0);
-			continue;
-		}
-
-		swimiop_init_request(&req);
-		req.fs = fs;
-		req.done = fd_request_complete;
-
-		if (CURRENT->cmd == WRITE) {
-			if (fs->write_prot) {
-				end_request(CURRENT, 0);
-				continue;
-			}
-			cmd->code = CMD_WRITE;
-		} else {
-			cmd->code = CMD_READ;
-
-		}
-		cmd->drive_num = fs->drive_num;
-		cmd->buffer = CURRENT->buffer;
-		cmd->first_block = CURRENT->sector;
-		cmd->num_blocks = CURRENT->current_nr_sectors;
-
-		if (swimiop_send_request(&req)) {
-			end_request(CURRENT, 0);
-			continue;
-		}
-
-		set_timeout(fs, HZ*CURRENT->current_nr_sectors,
-				fd_request_timeout);
-
-		fs->state = transferring;
-	}
-}
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 47d6975268f..54509eb3391 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1244,9 +1244,10 @@ out:
 	return IRQ_RETVAL(handled);
 }
 
-static void carm_fsm_task (void *_data)
+static void carm_fsm_task (struct work_struct *work)
 {
-	struct carm_host *host = _data;
+	struct carm_host *host =
+		container_of(work, struct carm_host, fsm_task);
 	unsigned long flags;
 	unsigned int state;
 	int rc, i, next_dev;
@@ -1619,7 +1620,7 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	host->pdev = pdev;
 	host->flags = pci_dac ? FL_DAC : 0;
 	spin_lock_init(&host->lock);
-	INIT_WORK(&host->fsm_task, carm_fsm_task, host);
+	INIT_WORK(&host->fsm_task, carm_fsm_task);
 	init_completion(&host->probe_comp);
 
 	for (i = 0; i < ARRAY_SIZE(host->req); i++)
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 0d5c73f0726..2098eff91e1 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -376,7 +376,7 @@ static int ub_submit_clear_stall(struct ub_dev *sc, struct ub_scsi_cmd *cmd,
     int stalled_pipe);
 static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd);
 static void ub_reset_enter(struct ub_dev *sc, int try);
-static void ub_reset_task(void *arg);
+static void ub_reset_task(struct work_struct *work);
 static int ub_sync_tur(struct ub_dev *sc, struct ub_lun *lun);
 static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
     struct ub_capacity *ret);
@@ -1558,9 +1558,9 @@ static void ub_reset_enter(struct ub_dev *sc, int try)
 	schedule_work(&sc->reset_work);
 }
 
-static void ub_reset_task(void *arg)
+static void ub_reset_task(struct work_struct *work)
 {
-	struct ub_dev *sc = arg;
+	struct ub_dev *sc = container_of(work, struct ub_dev, reset_work);
 	unsigned long flags;
 	struct list_head *p;
 	struct ub_lun *lun;
@@ -2179,7 +2179,7 @@ static int ub_probe(struct usb_interface *intf,
 	usb_init_urb(&sc->work_urb);
 	tasklet_init(&sc->tasklet, ub_scsi_action, (unsigned long)sc);
 	atomic_set(&sc->poison, 0);
-	INIT_WORK(&sc->reset_work, ub_reset_task, sc);
+	INIT_WORK(&sc->reset_work, ub_reset_task);
 	init_waitqueue_head(&sc->reset_wait);
 
 	init_timer(&sc->work_timer);
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index ec5a1b90a0a..68592c33601 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -49,6 +49,7 @@
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/vio.h>
+#include <asm/firmware.h>
 
 MODULE_DESCRIPTION("iSeries Virtual DASD");
 MODULE_AUTHOR("Dave Boutcher");
@@ -759,6 +760,8 @@ static struct vio_driver viodasd_driver = {
 	}
 };
 
+static int need_delete_probe;
+
 /*
  * Initialize the whole device driver.  Handle module and non-module
  * versions
@@ -767,52 +770,78 @@ static int __init viodasd_init(void)
 {
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
+		rc = -ENODEV;
+		goto early_fail;
+	}
+
 	/* Try to open to our host lp */
 	if (viopath_hostLp == HvLpIndexInvalid)
 		vio_set_hostlp();
 
 	if (viopath_hostLp == HvLpIndexInvalid) {
 		printk(VIOD_KERN_WARNING "invalid hosting partition\n");
-		return -EIO;
+		rc = -EIO;
+		goto early_fail;
 	}
 
 	printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n",
 			viopath_hostLp);
 
         /* register the block device */
-	if (register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME)) {
+	rc =  register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
+	if (rc) {
 		printk(VIOD_KERN_WARNING
 				"Unable to get major number %d for %s\n",
 				VIODASD_MAJOR, VIOD_GENHD_NAME);
-		return -EIO;
+		goto early_fail;
 	}
 	/* Actually open the path to the hosting partition */
-	if (viopath_open(viopath_hostLp, viomajorsubtype_blockio,
-				VIOMAXREQ + 2)) {
+	rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio,
+				VIOMAXREQ + 2);
+	if (rc) {
 		printk(VIOD_KERN_WARNING
 		       "error opening path to host partition %d\n",
 		       viopath_hostLp);
-		unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
-		return -EIO;
+		goto unregister_blk;
 	}
 
 	/* Initialize our request handler */
 	vio_setHandler(viomajorsubtype_blockio, handle_block_event);
 
 	rc = vio_register_driver(&viodasd_driver);
-	if (rc == 0)
-		driver_create_file(&viodasd_driver.driver, &driver_attr_probe);
+	if (rc) {
+		printk(VIOD_KERN_WARNING "vio_register_driver failed\n");
+		goto unset_handler;
+	}
+
+	/*
+	 * If this call fails, it just means that we cannot dynamically
+	 * add virtual disks, but the driver will still work fine for
+	 * all existing disk, so ignore the failure.
+	 */
+	if (!driver_create_file(&viodasd_driver.driver, &driver_attr_probe))
+		need_delete_probe = 1;
+
+	return 0;
+
+unset_handler:
+	vio_clearHandler(viomajorsubtype_blockio);
+	viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2);
+unregister_blk:
+	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
+early_fail:
 	return rc;
 }
 module_init(viodasd_init);
 
-void viodasd_exit(void)
+void __exit viodasd_exit(void)
 {
-	driver_remove_file(&viodasd_driver.driver, &driver_attr_probe);
+	if (need_delete_probe)
+		driver_remove_file(&viodasd_driver.driver, &driver_attr_probe);
 	vio_unregister_driver(&viodasd_driver);
 	vio_clearHandler(viomajorsubtype_blockio);
-	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
 	viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2);
+	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
 }
-
 module_exit(viodasd_exit);