MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141

pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040

stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch

mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch

Signed-off-by: Andy Green <andy@openmoko.com>

19 files changed, 226 insertions, 181 deletions

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 61ad8d639ba..0344a8a8321 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -21,7 +21,8 @@ config BLK_DEV_FD
 	---help---
 	  If you want to use the floppy disk drive(s) of your PC under Linux,
 	  say Y. Information about this driver, especially important for IBM
-	  Thinkpad users, is contained in <file:Documentation/floppy.txt>.
+	  Thinkpad users, is contained in
+	  <file:Documentation/blockdev/floppy.txt>.
 	  That file also contains the location of the Floppy driver FAQ as
 	  well as location of the fdutils package used to configure additional
 	  parameters of the driver at run time.
@@ -76,7 +77,7 @@ config PARIDE
 	  your computer's parallel port. Most of them are actually IDE devices
 	  using a parallel port IDE adapter. This option enables the PARIDE
 	  subsystem which contains drivers for many of these external drives.
-	  Read <file:Documentation/paride.txt> for more information.
+	  Read <file:Documentation/blockdev/paride.txt> for more information.
 
 	  If you have said Y to the "Parallel-port support" configuration
 	  option, you may share a single port between your printer and other
@@ -114,9 +115,9 @@ config BLK_CPQ_DA
 	help
 	  This is the driver for Compaq Smart Array controllers.  Everyone
 	  using these boards should say Y here.  See the file
-	  <file:Documentation/cpqarray.txt> for the current list of boards
-	  supported by this driver, and for further information on the use of
-	  this driver.
+	  <file:Documentation/blockdev/cpqarray.txt> for the current list of
+	  boards supported by this driver, and for further information on the
+	  use of this driver.
 
 config BLK_CPQ_CISS_DA
 	tristate "Compaq Smart Array 5xxx support"
@@ -124,7 +125,7 @@ config BLK_CPQ_CISS_DA
 	help
 	  This is the driver for Compaq Smart Array 5xxx controllers.
 	  Everyone using these boards should say Y here.
-	  See <file:Documentation/cciss.txt> for the current list of
+	  See <file:Documentation/blockdev/cciss.txt> for the current list of
 	  boards supported by this driver, and for further information
 	  on the use of this driver.
 
@@ -135,7 +136,7 @@ config CISS_SCSI_TAPE
 	help
 	  When enabled (Y), this option allows SCSI tape drives and SCSI medium
 	  changers (tape robots) to be accessed via a Compaq 5xxx array 
-	  controller.  (See <file:Documentation/cciss.txt> for more details.)
+	  controller.  (See <file:Documentation/blockdev/cciss.txt> for more details.)
 
 	  "SCSI support" and "SCSI tape support" must also be enabled for this 
 	  option to work.
@@ -149,8 +150,8 @@ config BLK_DEV_DAC960
 	help
 	  This driver adds support for the Mylex DAC960, AcceleRAID, and
 	  eXtremeRAID PCI RAID controllers.  See the file
-	  <file:Documentation/README.DAC960> for further information about
-	  this driver.
+	  <file:Documentation/blockdev/README.DAC960> for further information
+	  about this driver.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called DAC960.
@@ -278,9 +279,9 @@ config BLK_DEV_NBD
 	  userland (making server and client physically the same computer,
 	  communicating using the loopback network device).
 
-	  Read <file:Documentation/nbd.txt> for more information, especially
-	  about where to find the server code, which runs in user space and
-	  does not need special kernel support.
+	  Read <file:Documentation/blockdev/nbd.txt> for more information,
+	  especially about where to find the server code, which runs in user
+	  space and does not need special kernel support.
 
 	  Note that this has nothing to do with the network file systems NFS
 	  or Coda; you can say N here even if you intend to use NFS or Coda.
@@ -321,8 +322,8 @@ config BLK_DEV_RAM
 	  store a copy of a minimal root file system off of a floppy into RAM
 	  during the initial install of Linux.
 
-	  Note that the kernel command line option "ramdisk=XX" is now
-	  obsolete. For details, read <file:Documentation/ramdisk.txt>.
+	  Note that the kernel command line option "ramdisk=XX" is now obsolete.
+	  For details, read <file:Documentation/blockdev/ramdisk.txt>.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called rd.
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 4b1d4ac960f..8df436ff706 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -156,7 +156,7 @@ static volatile int fdc_busy = -1;
 static volatile int fdc_nested;
 static DECLARE_WAIT_QUEUE_HEAD(fdc_wait);
  
-static DECLARE_WAIT_QUEUE_HEAD(motor_wait);
+static DECLARE_COMPLETION(motor_on_completion);
 
 static volatile int selected = -1;	/* currently selected drive */
 
@@ -184,8 +184,7 @@ static unsigned char mfmencode[16]={
 static unsigned char mfmdecode[128];
 
 /* floppy internal millisecond timer stuff */
-static volatile int ms_busy = -1;
-static DECLARE_WAIT_QUEUE_HEAD(ms_wait);
+static DECLARE_COMPLETION(ms_wait_completion);
 #define MS_TICKS ((amiga_eclock+50)/1000)
 
 /*
@@ -211,8 +210,7 @@ static int fd_device[4] = { 0, 0, 0, 0 };
 
 static irqreturn_t ms_isr(int irq, void *dummy)
 {
-	ms_busy = -1;
-	wake_up(&ms_wait);
+	complete(&ms_wait_completion);
 	return IRQ_HANDLED;
 }
 
@@ -220,19 +218,17 @@ static irqreturn_t ms_isr(int irq, void *dummy)
    A more generic routine would do a schedule a la timer.device */
 static void ms_delay(int ms)
 {
-	unsigned long flags;
 	int ticks;
+	static DEFINE_MUTEX(mutex);
+
 	if (ms > 0) {
-		local_irq_save(flags);
-		while (ms_busy == 0)
-			sleep_on(&ms_wait);
-		ms_busy = 0;
-		local_irq_restore(flags);
+		mutex_lock(&mutex);
 		ticks = MS_TICKS*ms-1;
 		ciaa.tblo=ticks%256;
 		ciaa.tbhi=ticks/256;
 		ciaa.crb=0x19; /*count eclock, force load, one-shoot, start */
-		sleep_on(&ms_wait);
+		wait_for_completion(&ms_wait_completion);
+		mutex_unlock(&mutex);
 	}
 }
 
@@ -254,8 +250,7 @@ static void get_fdc(int drive)
 	printk("get_fdc: drive %d  fdc_busy %d  fdc_nested %d\n",drive,fdc_busy,fdc_nested);
 #endif
 	local_irq_save(flags);
-	while (!try_fdc(drive))
-		sleep_on(&fdc_wait);
+	wait_event(fdc_wait, try_fdc(drive));
 	fdc_busy = drive;
 	fdc_nested++;
 	local_irq_restore(flags);
@@ -330,7 +325,7 @@ static void fd_deselect (int drive)
 static void motor_on_callback(unsigned long nr)
 {
 	if (!(ciaa.pra & DSKRDY) || --on_attempts == 0) {
-		wake_up (&motor_wait);
+		complete_all(&motor_on_completion);
 	} else {
 		motor_on_timer.expires = jiffies + HZ/10;
 		add_timer(&motor_on_timer);
@@ -347,11 +342,12 @@ static int fd_motor_on(int nr)
 		unit[nr].motor = 1;
 		fd_select(nr);
 
+		INIT_COMPLETION(motor_on_completion);
 		motor_on_timer.data = nr;
 		mod_timer(&motor_on_timer, jiffies + HZ/2);
 
 		on_attempts = 10;
-		sleep_on (&motor_wait);
+		wait_for_completion(&motor_on_completion);
 		fd_deselect(nr);
 	}
 
@@ -582,8 +578,7 @@ static void raw_read(int drive)
 {
 	drive&=3;
 	get_fdc(drive);
-	while (block_flag)
-		sleep_on(&wait_fd_block);
+	wait_event(wait_fd_block, !block_flag);
 	fd_select(drive);
 	/* setup adkcon bits correctly */
 	custom.adkcon = ADK_MSBSYNC;
@@ -598,8 +593,7 @@ static void raw_read(int drive)
 
 	block_flag = 1;
 
-	while (block_flag)
-		sleep_on (&wait_fd_block);
+	wait_event(wait_fd_block, !block_flag);
 
 	custom.dsklen = 0;
 	fd_deselect(drive);
@@ -616,8 +610,7 @@ static int raw_write(int drive)
 		rel_fdc();
 		return 0;
 	}
-	while (block_flag)
-		sleep_on(&wait_fd_block);
+	wait_event(wait_fd_block, !block_flag);
 	fd_select(drive);
 	/* clear adkcon bits */
 	custom.adkcon = ADK_PRECOMP1|ADK_PRECOMP0|ADK_WORDSYNC|ADK_MSBSYNC;
@@ -1294,8 +1287,7 @@ static int non_int_flush_track (unsigned long nr)
 			writepending = 0;
 			return 0;
 		}
-		while (block_flag == 2)
-			sleep_on (&wait_fd_block);
+		wait_event(wait_fd_block, block_flag != 2);
 	}
 	else {
 		local_irq_restore(flags);
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 93f3690396a..c237527b1aa 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -200,4 +200,3 @@ void aoenet_xmit(struct sk_buff_head *);
 int is_aoe_netif(struct net_device *ifp);
 int set_aoe_iflist(const char __user *str, size_t size);
 
-unsigned long long mac_addr(char addr[6]);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 1747dd272cd..2307a271bdc 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -37,7 +37,7 @@ static ssize_t aoedisk_show_mac(struct device *dev,
 
 	if (t == NULL)
 		return snprintf(page, PAGE_SIZE, "none\n");
-	return snprintf(page, PAGE_SIZE, "%012llx\n", mac_addr(t->addr));
+	return snprintf(page, PAGE_SIZE, "%pm\n", t->addr);
 }
 static ssize_t aoedisk_show_netif(struct device *dev,
 				  struct device_attribute *attr, char *page)
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 71ff78c9e4d..45c5a33daf4 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -349,11 +349,9 @@ resend(struct aoedev *d, struct aoetgt *t, struct frame *f)
 	ah = (struct aoe_atahdr *) (h+1);
 
 	snprintf(buf, sizeof buf,
-		"%15s e%ld.%d oldtag=%08x@%08lx newtag=%08x "
-		"s=%012llx d=%012llx nout=%d\n",
+		"%15s e%ld.%d oldtag=%08x@%08lx newtag=%08x s=%pm d=%pm nout=%d\n",
 		"retransmit", d->aoemajor, d->aoeminor, f->tag, jiffies, n,
-		mac_addr(h->src),
-		mac_addr(h->dst), t->nout);
+		h->src, h->dst, t->nout);
 	aoechr_error(buf);
 
 	f->tag = n;
@@ -544,10 +542,10 @@ rexmit_timer(ulong vp)
 				printk(KERN_INFO
 					"aoe: e%ld.%d: "
 					"too many lost jumbo on "
-					"%s:%012llx - "
+					"%s:%pm - "
 					"falling back to %d frames.\n",
 					d->aoemajor, d->aoeminor,
-					ifp->nd->name, mac_addr(t->addr),
+					ifp->nd->name, t->addr,
 					DEFAULTBCNT);
 				ifp->maxbcnt = 0;
 			}
@@ -672,8 +670,8 @@ ataid_complete(struct aoedev *d, struct aoetgt *t, unsigned char *id)
 
 	if (d->ssize != ssize)
 		printk(KERN_INFO
-			"aoe: %012llx e%ld.%d v%04x has %llu sectors\n",
-			mac_addr(t->addr),
+			"aoe: %pm e%ld.%d v%04x has %llu sectors\n",
+			t->addr,
 			d->aoemajor, d->aoeminor,
 			d->fw_ver, (long long)ssize);
 	d->ssize = ssize;
@@ -775,8 +773,8 @@ aoecmd_ata_rsp(struct sk_buff *skb)
 	n = get_unaligned_be32(&hin->tag);
 	t = gettgt(d, hin->src);
 	if (t == NULL) {
-		printk(KERN_INFO "aoe: can't find target e%ld.%d:%012llx\n",
-			d->aoemajor, d->aoeminor, mac_addr(hin->src));
+		printk(KERN_INFO "aoe: can't find target e%ld.%d:%pm\n",
+			d->aoemajor, d->aoeminor, hin->src);
 		spin_unlock_irqrestore(&d->lock, flags);
 		return;
 	}
@@ -1036,10 +1034,10 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
 		n = n ? n * 512 : DEFAULTBCNT;
 		if (n != ifp->maxbcnt) {
 			printk(KERN_INFO
-				"aoe: e%ld.%d: setting %d%s%s:%012llx\n",
+				"aoe: e%ld.%d: setting %d%s%s:%pm\n",
 				d->aoemajor, d->aoeminor, n,
 				" byte data frames on ", ifp->nd->name,
-				mac_addr(t->addr));
+				t->addr);
 			ifp->maxbcnt = n;
 		}
 	}
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index 9157d64270c..30de5b1c647 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -83,17 +83,6 @@ set_aoe_iflist(const char __user *user_str, size_t size)
 	return 0;
 }
 
-unsigned long long
-mac_addr(char addr[6])
-{
-	__be64 n = 0;
-	char *p = (char *) &n;
-
-	memcpy(p + 2, addr, 6);	/* (sizeof addr != 6) */
-
-	return (unsigned long long) __be64_to_cpu(n);
-}
-
 void
 aoenet_xmit(struct sk_buff_head *queue)
 {
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 12de1fdaa6c..01e69383d9c 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -164,7 +164,7 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 static int cciss_revalidate(struct gendisk *disk);
 static int rebuild_lun_table(ctlr_info_t *h, int first_time);
-static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
+static int deregister_disk(ctlr_info_t *h, int drv_index,
 			   int clear_all);
 
 static void cciss_read_capacity(int ctlr, int logvol, int withirq,
@@ -215,31 +215,17 @@ static struct block_device_operations cciss_fops = {
 /*
  * Enqueuing and dequeuing functions for cmdlists.
  */
-static inline void addQ(CommandList_struct **Qptr, CommandList_struct *c)
+static inline void addQ(struct hlist_head *list, CommandList_struct *c)
 {
-	if (*Qptr == NULL) {
-		*Qptr = c;
-		c->next = c->prev = c;
-	} else {
-		c->prev = (*Qptr)->prev;
-		c->next = (*Qptr);
-		(*Qptr)->prev->next = c;
-		(*Qptr)->prev = c;
-	}
+	hlist_add_head(&c->list, list);
 }
 
-static inline CommandList_struct *removeQ(CommandList_struct **Qptr,
-					  CommandList_struct *c)
+static inline void removeQ(CommandList_struct *c)
 {
-	if (c && c->next != c) {
-		if (*Qptr == c)
-			*Qptr = c->next;
-		c->prev->next = c->next;
-		c->next->prev = c->prev;
-	} else {
-		*Qptr = NULL;
-	}
-	return c;
+	if (WARN_ON(hlist_unhashed(&c->list)))
+		return;
+
+	hlist_del_init(&c->list);
 }
 
 #include "cciss_scsi.c"		/* For SCSI tape support */
@@ -506,6 +492,7 @@ static CommandList_struct *cmd_alloc(ctlr_info_t *h, int get_from_pool)
 		c->cmdindex = i;
 	}
 
+	INIT_HLIST_NODE(&c->list);
 	c->busaddr = (__u32) cmd_dma_handle;
 	temp64.val = (__u64) err_dma_handle;
 	c->ErrDesc.Addr.lower = temp64.val32.lower;
@@ -1492,8 +1479,7 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time)
 		 * which keeps the interrupt handler from starting
 		 * the queue.
 		 */
-		ret = deregister_disk(h->gendisk[drv_index],
-				      &h->drv[drv_index], 0);
+		ret = deregister_disk(h, drv_index, 0);
 		h->drv[drv_index].busy_configuring = 0;
 	}
 
@@ -1693,6 +1679,11 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time)
 	for (i = 0; i <= h->highest_lun; i++) {
 		int j;
 		drv_found = 0;
+
+		/* skip holes in the array from already deleted drives */
+		if (h->drv[i].raid_level == -1)
+			continue;
+
 		for (j = 0; j < num_luns; j++) {
 			memcpy(&lunid, &ld_buff->LUN[j][0], 4);
 			lunid = le32_to_cpu(lunid);
@@ -1706,8 +1697,7 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time)
 			spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
 			h->drv[i].busy_configuring = 1;
 			spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
-			return_code = deregister_disk(h->gendisk[i],
-				&h->drv[i], 1);
+			return_code = deregister_disk(h, i, 1);
 			h->drv[i].busy_configuring = 0;
 		}
 	}
@@ -1777,15 +1767,19 @@ mem_msg:
  *             the highest_lun should be left unchanged and the LunID
  *             should not be cleared.
 */
-static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
+static int deregister_disk(ctlr_info_t *h, int drv_index,
 			   int clear_all)
 {
 	int i;
-	ctlr_info_t *h = get_host(disk);
+	struct gendisk *disk;
+	drive_info_struct *drv;
 
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 
+	drv = &h->drv[drv_index];
+	disk = h->gendisk[drv_index];
+
 	/* make sure logical volume is NOT is use */
 	if (clear_all || (h->gendisk[0] == disk)) {
 		if (drv->usage_count > 1)
@@ -2543,7 +2537,8 @@ static void start_io(ctlr_info_t *h)
 {
 	CommandList_struct *c;
 
-	while ((c = h->reqQ) != NULL) {
+	while (!hlist_empty(&h->reqQ)) {
+		c = hlist_entry(h->reqQ.first, CommandList_struct, list);
 		/* can't do anything if fifo is full */
 		if ((h->access.fifo_full(h))) {
 			printk(KERN_WARNING "cciss: fifo full\n");
@@ -2551,14 +2546,14 @@ static void start_io(ctlr_info_t *h)
 		}
 
 		/* Get the first entry from the Request Q */
-		removeQ(&(h->reqQ), c);
+		removeQ(c);
 		h->Qdepth--;
 
 		/* Tell the controller execute command */
 		h->access.submit_command(h, c);
 
 		/* Put job onto the completed Q */
-		addQ(&(h->cmpQ), c);
+		addQ(&h->cmpQ, c);
 	}
 }
 
@@ -2571,7 +2566,7 @@ static inline void resend_cciss_cmd(ctlr_info_t *h, CommandList_struct *c)
 	memset(c->err_info, 0, sizeof(ErrorInfo_struct));
 
 	/* add it to software queue and then send it to the controller */
-	addQ(&(h->reqQ), c);
+	addQ(&h->reqQ, c);
 	h->Qdepth++;
 	if (h->Qdepth > h->maxQsinceinit)
 		h->maxQsinceinit = h->Qdepth;
@@ -2847,7 +2842,7 @@ static void do_cciss_request(struct request_queue *q)
 		h->maxSG = seg;
 
 #ifdef CCISS_DEBUG
-	printk(KERN_DEBUG "cciss: Submitting %d sectors in %d segments\n",
+	printk(KERN_DEBUG "cciss: Submitting %lu sectors in %d segments\n",
 	       creq->nr_sectors, seg);
 #endif				/* CCISS_DEBUG */
 
@@ -2892,7 +2887,7 @@ static void do_cciss_request(struct request_queue *q)
 
 	spin_lock_irq(q->queue_lock);
 
-	addQ(&(h->reqQ), c);
+	addQ(&h->reqQ, c);
 	h->Qdepth++;
 	if (h->Qdepth > h->maxQsinceinit)
 		h->maxQsinceinit = h->Qdepth;
@@ -2980,16 +2975,12 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id)
 				a = c->busaddr;
 
 			} else {
+				struct hlist_node *tmp;
+
 				a &= ~3;
-				if ((c = h->cmpQ) == NULL) {
-					printk(KERN_WARNING
-					       "cciss: Completion of %08x ignored\n",
-					       a1);
-					continue;
-				}
-				while (c->busaddr != a) {
-					c = c->next;
-					if (c == h->cmpQ)
+				c = NULL;
+				hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
+					if (c->busaddr == a)
 						break;
 				}
 			}
@@ -2997,8 +2988,8 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id)
 			 * If we've found the command, take it off the
 			 * completion Q and free it
 			 */
-			if (c->busaddr == a) {
-				removeQ(&h->cmpQ, c);
+			if (c && c->busaddr == a) {
+				removeQ(c);
 				if (c->cmd_type == CMD_RWREQ) {
 					complete_command(h, c, 0);
 				} else if (c->cmd_type == CMD_IOCTL_PEND) {
@@ -3197,7 +3188,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 
 	c->paddr = pci_resource_start(pdev, 0);	/* addressing mode bits already removed */
 #ifdef CCISS_DEBUG
-	printk("address 0 = %x\n", c->paddr);
+	printk("address 0 = %lx\n", c->paddr);
 #endif				/* CCISS_DEBUG */
 	c->vaddr = remap_pci_mem(c->paddr, 0x250);
 
@@ -3224,7 +3215,8 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 #endif				/* CCISS_DEBUG */
 	cfg_base_addr_index = find_PCI_BAR_index(pdev, cfg_base_addr);
 #ifdef CCISS_DEBUG
-	printk("cfg base address index = %x\n", cfg_base_addr_index);
+	printk("cfg base address index = %llx\n",
+		(unsigned long long)cfg_base_addr_index);
 #endif				/* CCISS_DEBUG */
 	if (cfg_base_addr_index == -1) {
 		printk(KERN_WARNING "cciss: Cannot find cfg_base_addr_index\n");
@@ -3234,7 +3226,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev)
 
 	cfg_offset = readl(c->vaddr + SA5_CTMEM_OFFSET);
 #ifdef CCISS_DEBUG
-	printk("cfg offset = %x\n", cfg_offset);
+	printk("cfg offset = %llx\n", (unsigned long long)cfg_offset);
 #endif				/* CCISS_DEBUG */
 	c->cfgtable = remap_pci_mem(pci_resource_start(pdev,
 						       cfg_base_addr_index) +
@@ -3417,6 +3409,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 		return -1;
 
 	hba[i]->busy_initializing = 1;
+	INIT_HLIST_HEAD(&hba[i]->cmpQ);
+	INIT_HLIST_HEAD(&hba[i]->reqQ);
 
 	if (cciss_pci_init(hba[i], pdev) != 0)
 		goto clean1;
@@ -3724,15 +3718,17 @@ static void fail_all_cmds(unsigned long ctlr)
 	pci_disable_device(h->pdev);	/* Make sure it is really dead. */
 
 	/* move everything off the request queue onto the completed queue */
-	while ((c = h->reqQ) != NULL) {
-		removeQ(&(h->reqQ), c);
+	while (!hlist_empty(&h->reqQ)) {
+		c = hlist_entry(h->reqQ.first, CommandList_struct, list);
+		removeQ(c);
 		h->Qdepth--;
-		addQ(&(h->cmpQ), c);
+		addQ(&h->cmpQ, c);
 	}
 
 	/* Now, fail everything on the completed queue with a HW error */
-	while ((c = h->cmpQ) != NULL) {
-		removeQ(&h->cmpQ, c);
+	while (!hlist_empty(&h->cmpQ)) {
+		c = hlist_entry(h->cmpQ.first, CommandList_struct, list);
+		removeQ(c);
 		c->err_info->CommandStatus = CMD_HARDWARE_ERR;
 		if (c->cmd_type == CMD_RWREQ) {
 			complete_command(h, c, 0);
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 24a7efa993a..15e2b84734e 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -89,8 +89,8 @@ struct ctlr_info
 	struct access_method access;
 
 	/* queue and queue Info */ 
-	CommandList_struct *reqQ;
-	CommandList_struct  *cmpQ;
+	struct hlist_head reqQ;
+	struct hlist_head cmpQ;
 	unsigned int Qdepth;
 	unsigned int maxQsinceinit;
 	unsigned int maxSG;
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 43bf5593b59..24e22dea1a9 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -265,8 +265,7 @@ typedef struct _CommandList_struct {
   int			   ctlr;
   int			   cmd_type; 
   long			   cmdindex;
-  struct _CommandList_struct *prev;
-  struct _CommandList_struct *next;
+  struct hlist_node list;
   struct request *	   rq;
   struct completion *waiting;
   int	 retry_count;
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 14db747a636..cf29cc4e6ab 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4124,7 +4124,7 @@ static int __init floppy_setup(char *str)
 		printk("\n");
 	} else
 		DPRINT("botched floppy option\n");
-	DPRINT("Read Documentation/floppy.txt\n");
+	DPRINT("Read Documentation/blockdev/floppy.txt\n");
 	return 0;
 }
 
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 5c4ee70d5cf..edbaac6c057 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -624,20 +624,38 @@ static int loop_switch(struct loop_device *lo, struct file *file)
 }
 
 /*
+ * Helper to flush the IOs in loop, but keeping loop thread running
+ */
+static int loop_flush(struct loop_device *lo)
+{
+	/* loop not yet configured, no running thread, nothing to flush */
+	if (!lo->lo_thread)
+		return 0;
+
+	return loop_switch(lo, NULL);
+}
+
+/*
  * Do the actual switch; called from the BIO completion routine
  */
 static void do_loop_switch(struct loop_device *lo, struct switch_request *p)
 {
 	struct file *file = p->file;
 	struct file *old_file = lo->lo_backing_file;
-	struct address_space *mapping = file->f_mapping;
+	struct address_space *mapping;
+
+	/* if no new file, only flush of queued bios requested */
+	if (!file)
+		goto out;
 
+	mapping = file->f_mapping;
 	mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask);
 	lo->lo_backing_file = file;
 	lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ?
 		mapping->host->i_bdev->bd_block_size : PAGE_SIZE;
 	lo->old_gfp_mask = mapping_gfp_mask(mapping);
 	mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
+out:
 	complete(&p->wait);
 }
 
@@ -901,6 +919,7 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
 
 	kthread_stop(lo->lo_thread);
 
+	lo->lo_queue->unplug_fn = NULL;
 	lo->lo_backing_file = NULL;
 
 	loop_release_xfer(lo);
@@ -936,8 +955,10 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 {
 	int err;
 	struct loop_func_table *xfer;
+	uid_t uid = current_uid();
 
-	if (lo->lo_encrypt_key_size && lo->lo_key_owner != current->uid &&
+	if (lo->lo_encrypt_key_size &&
+	    lo->lo_key_owner != uid &&
 	    !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	if (lo->lo_state != Lo_bound)
@@ -992,7 +1013,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	if (info->lo_encrypt_key_size) {
 		memcpy(lo->lo_encrypt_key, info->lo_encrypt_key,
 		       info->lo_encrypt_key_size);
-		lo->lo_key_owner = current->uid;
+		lo->lo_key_owner = uid;
 	}	
 
 	return 0;
@@ -1343,11 +1364,25 @@ static int lo_release(struct gendisk *disk, fmode_t mode)
 	struct loop_device *lo = disk->private_data;
 
 	mutex_lock(&lo->lo_ctl_mutex);
-	--lo->lo_refcnt;
 
-	if ((lo->lo_flags & LO_FLAGS_AUTOCLEAR) && !lo->lo_refcnt)
+	if (--lo->lo_refcnt)
+		goto out;
+
+	if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) {
+		/*
+		 * In autoclear mode, stop the loop thread
+		 * and remove configuration after last close.
+		 */
 		loop_clr_fd(lo, NULL);
+	} else {
+		/*
+		 * Otherwise keep thread (if running) and config,
+		 * but flush possible ongoing bios in thread.
+		 */
+		loop_flush(lo);
+	}
 
+out:
 	mutex_unlock(&lo->lo_ctl_mutex);
 
 	return 0;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index d3a91cacee8..34f80fa6fed 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -406,6 +406,7 @@ static int nbd_do_it(struct nbd_device *lo)
 	ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
 	if (ret) {
 		printk(KERN_ERR "nbd: sysfs_create_file failed!");
+		lo->pid = 0;
 		return ret;
 	}
 
@@ -413,6 +414,7 @@ static int nbd_do_it(struct nbd_device *lo)
 		nbd_end_request(req);
 
 	sysfs_remove_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
+	lo->pid = 0;
 	return 0;
 }
 
@@ -648,6 +650,8 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
 		set_capacity(lo->disk, lo->bytesize >> 9);
 		return 0;
 	case NBD_DO_IT:
+		if (lo->pid)
+			return -EBUSY;
 		if (!lo->file)
 			return -EINVAL;
 		thread = kthread_create(nbd_thread, lo, lo->disk->disk_name);
@@ -722,7 +726,6 @@ static int __init nbd_init(void)
 
 	for (i = 0; i < nbds_max; i++) {
 		struct gendisk *disk = alloc_disk(1 << part_shift);
-		elevator_t *old_e;
 		if (!disk)
 			goto out;
 		nbd_dev[i].disk = disk;
@@ -736,11 +739,10 @@ static int __init nbd_init(void)
 			put_disk(disk);
 			goto out;
 		}
-		old_e = disk->queue->elevator;
-		if (elevator_init(disk->queue, "deadline") == 0 ||
-			elevator_init(disk->queue, "noop") == 0) {
-				elevator_exit(old_e);
-		}
+		/*
+		 * Tell the block layer that we are not a rotational device
+		 */
+		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, disk->queue);
 	}
 
 	if (register_blkdev(NBD_MAJOR, "nbd")) {
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index f20bf359b84..dc7a8c352da 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -302,7 +302,7 @@ static struct kobj_type kobj_pkt_type_wqueue = {
 static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
 {
 	if (class_pktcdvd) {
-		pd->dev = device_create(class_pktcdvd, NULL, pd->pkt_dev, NULL,
+		pd->dev = device_create(class_pktcdvd, NULL, MKDEV(0, 0), NULL,
 					"%s", pd->name);
 		if (IS_ERR(pd->dev))
 			pd->dev = NULL;
@@ -2790,7 +2790,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 	return 0;
 
 out_mem:
-	blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
+	blkdev_put(bdev, FMODE_READ | FMODE_NDELAY);
 	/* This is safe: open() is still holding a reference. */
 	module_put(THIS_MODULE);
 	return ret;
@@ -2975,7 +2975,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
 	pkt_debugfs_dev_remove(pd);
 	pkt_sysfs_dev_remove(pd);
 
-	blkdev_put(pd->bdev, FMODE_READ|FMODE_WRITE);
+	blkdev_put(pd->bdev, FMODE_READ | FMODE_NDELAY);
 
 	remove_proc_entry(pd->name, pkt_proc);
 	DPRINTK(DRIVER_NAME": writer %s unmapped\n", pd->name);
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index 936466f62af..bccc42bb921 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -141,7 +141,7 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev,
 
 	start_sector = req->sector * priv->blocking_factor;
 	sectors = req->nr_sectors * priv->blocking_factor;
-	dev_dbg(&dev->sbd.core, "%s:%u: %s %lu sectors starting at %lu\n",
+	dev_dbg(&dev->sbd.core, "%s:%u: %s %llu sectors starting at %llu\n",
 		__func__, __LINE__, op, sectors, start_sector);
 
 	if (write) {
@@ -178,7 +178,7 @@ static int ps3disk_submit_flush_request(struct ps3_storage_device *dev,
 					      LV1_STORAGE_ATA_HDDOUT, 0, 0, 0,
 					      0, &dev->tag);
 	if (res) {
-		dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%lx\n",
+		dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n",
 			__func__, __LINE__, res);
 		end_request(req, 0);
 		return 0;
@@ -238,11 +238,11 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data)
 
 	if (tag != dev->tag)
 		dev_err(&dev->sbd.core,
-			"%s:%u: tag mismatch, got %lx, expected %lx\n",
+			"%s:%u: tag mismatch, got %llx, expected %llx\n",
 			__func__, __LINE__, tag, dev->tag);
 
 	if (res) {
-		dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%lx\n",
+		dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%llx\n",
 			__func__, __LINE__, res, status);
 		return IRQ_HANDLED;
 	}
@@ -269,7 +269,7 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data)
 		op = read ? "read" : "write";
 	}
 	if (status) {
-		dev_dbg(&dev->sbd.core, "%s:%u: %s failed 0x%lx\n", __func__,
+		dev_dbg(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__,
 			__LINE__, op, status);
 		error = -EIO;
 	} else {
@@ -297,7 +297,7 @@ static int ps3disk_sync_cache(struct ps3_storage_device *dev)
 
 	res = ps3stor_send_command(dev, LV1_STORAGE_ATA_HDDOUT, 0, 0, 0, 0);
 	if (res) {
-		dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%lx\n",
+		dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n",
 			__func__, __LINE__, res);
 		return -EIO;
 	}
@@ -388,7 +388,7 @@ static int ps3disk_identify(struct ps3_storage_device *dev)
 				   sizeof(ata_cmnd), ata_cmnd.buffer,
 				   ata_cmnd.arglen);
 	if (res) {
-		dev_err(&dev->sbd.core, "%s:%u: identify disk failed 0x%lx\n",
+		dev_err(&dev->sbd.core, "%s:%u: identify disk failed 0x%llx\n",
 			__func__, __LINE__, res);
 		return -EIO;
 	}
@@ -426,7 +426,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev)
 
 	if (dev->blk_size < 512) {
 		dev_err(&dev->sbd.core,
-			"%s:%u: cannot handle block size %lu\n", __func__,
+			"%s:%u: cannot handle block size %llu\n", __func__,
 			__LINE__, dev->blk_size);
 		return -EINVAL;
 	}
@@ -512,7 +512,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev)
 		     dev->regions[dev->region_idx].size*priv->blocking_factor);
 
 	dev_info(&dev->sbd.core,
-		 "%s is a %s (%lu MiB total, %lu MiB for OtherOS)\n",
+		 "%s is a %s (%llu MiB total, %lu MiB for OtherOS)\n",
 		 gendisk->disk_name, priv->model, priv->raw_capacity >> 11,
 		 get_capacity(gendisk) >> 11);
 
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 953c0b83d75..5861e33efe6 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -153,7 +153,7 @@ static int vdc_send_attr(struct vio_driver_state *vio)
 	pkt.vdisk_block_size = port->vdisk_block_size;
 	pkt.max_xfer_size = port->max_xfer_size;
 
-	viodbg(HS, "SEND ATTR xfer_mode[0x%x] blksz[%u] max_xfer[%lu]\n",
+	viodbg(HS, "SEND ATTR xfer_mode[0x%x] blksz[%u] max_xfer[%llu]\n",
 	       pkt.xfer_mode, pkt.vdisk_block_size, pkt.max_xfer_size);
 
 	return vio_ldc_send(&port->vio, &pkt, sizeof(pkt));
@@ -164,8 +164,8 @@ static int vdc_handle_attr(struct vio_driver_state *vio, void *arg)
 	struct vdc_port *port = to_vdc_port(vio);
 	struct vio_disk_attr_info *pkt = arg;
 
-	viodbg(HS, "GOT ATTR stype[0x%x] ops[%lx] disk_size[%lu] disk_type[%x] "
-	       "xfer_mode[0x%x] blksz[%u] max_xfer[%lu]\n",
+	viodbg(HS, "GOT ATTR stype[0x%x] ops[%llx] disk_size[%llu] disk_type[%x] "
+	       "xfer_mode[0x%x] blksz[%u] max_xfer[%llu]\n",
 	       pkt->tag.stype, pkt->operations,
 	       pkt->vdisk_size, pkt->vdisk_type,
 	       pkt->xfer_mode, pkt->vdisk_block_size,
@@ -753,7 +753,7 @@ static int __devinit vdc_port_probe(struct vio_dev *vdev,
 
 	err = -ENODEV;
 	if ((vdev->dev_no << PARTITION_SHIFT) & ~(u64)MINORMASK) {
-		printk(KERN_ERR PFX "Port id [%lu] too large.\n",
+		printk(KERN_ERR PFX "Port id [%llu] too large.\n",
 		       vdev->dev_no);
 		goto err_out_release_mdesc;
 	}
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index fccac18d311..12fb816db7b 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1546,8 +1546,6 @@ static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd)
 
 /*
  * Reset management
- * XXX Move usb_reset_device to khubd. Hogging kevent is not a good thing.
- * XXX Make usb_sync_reset asynchronous.
  */
 
 static void ub_reset_enter(struct ub_dev *sc, int try)
@@ -1581,7 +1579,7 @@ static void ub_reset_task(struct work_struct *work)
 	struct ub_dev *sc = container_of(work, struct ub_dev, reset_work);
 	unsigned long flags;
 	struct ub_lun *lun;
-	int lkr, rc;
+	int rc;
 
 	if (!sc->reset) {
 		printk(KERN_WARNING "%s: Running reset unrequested\n",
@@ -1599,10 +1597,11 @@ static void ub_reset_task(struct work_struct *work)
 	} else if (sc->dev->actconfig->desc.bNumInterfaces != 1) {
 		;
 	} else {
-		if ((lkr = usb_lock_device_for_reset(sc->dev, sc->intf)) < 0) {
+		rc = usb_lock_device_for_reset(sc->dev, sc->intf);
+		if (rc < 0) {
 			printk(KERN_NOTICE
 			    "%s: usb_lock_device_for_reset failed (%d)\n",
-			    sc->name, lkr);
+			    sc->name, rc);
 		} else {
 			rc = usb_reset_device(sc->dev);
 			if (rc < 0) {
@@ -1610,9 +1609,7 @@ static void ub_reset_task(struct work_struct *work)
 				    "usb_lock_device_for_reset failed (%d)\n",
 				    sc->name, rc);
 			}
-
-			if (lkr)
-				usb_unlock_device(sc->dev);
+			usb_unlock_device(sc->dev);
 		}
 	}
 
@@ -1633,6 +1630,22 @@ static void ub_reset_task(struct work_struct *work)
 }
 
 /*
+ * XXX Reset brackets are too much hassle to implement, so just stub them
+ * in order to prevent forced unbinding (which deadlocks solid when our
+ * ->disconnect method waits for the reset to complete and this kills keventd).
+ *
+ * XXX Tell Alan to move usb_unlock_device inside of usb_reset_device,
+ * or else the post_reset is invoked, and restats I/O on a locked device.
+ */
+static int ub_pre_reset(struct usb_interface *iface) {
+	return 0;
+}
+
+static int ub_post_reset(struct usb_interface *iface) {
+	return 0;
+}
+
+/*
  * This is called from a process context.
  */
 static void ub_revalidate(struct ub_dev *sc, struct ub_lun *lun)
@@ -2446,6 +2459,8 @@ static struct usb_driver ub_driver = {
 	.probe =	ub_probe,
 	.disconnect =	ub_disconnect,
 	.id_table =	ub_usb_ids,
+	.pre_reset =	ub_pre_reset,
+	.post_reset =	ub_post_reset,
 };
 
 static int __init ub_init(void)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 85d79a02d48..5d34764c8a8 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -6,7 +6,6 @@
 #include <linux/virtio_blk.h>
 #include <linux/scatterlist.h>
 
-#define VIRTIO_MAX_SG	(3+MAX_PHYS_SEGMENTS)
 #define PART_BITS 4
 
 static int major, index;
@@ -26,8 +25,11 @@ struct virtio_blk
 
 	mempool_t *pool;
 
+	/* What host tells us, plus 2 for header & tailer. */
+	unsigned int sg_elems;
+
 	/* Scatterlist: can be too big for stack. */
-	struct scatterlist sg[VIRTIO_MAX_SG];
+	struct scatterlist sg[/*sg_elems*/];
 };
 
 struct virtblk_req
@@ -97,8 +99,6 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
 	if (blk_barrier_rq(vbr->req))
 		vbr->out_hdr.type |= VIRTIO_BLK_T_BARRIER;
 
-	/* This init could be done at vblk creation time */
-	sg_init_table(vblk->sg, VIRTIO_MAX_SG);
 	sg_set_buf(&vblk->sg[0], &vbr->out_hdr, sizeof(vbr->out_hdr));
 	num = blk_rq_map_sg(q, vbr->req, vblk->sg+1);
 	sg_set_buf(&vblk->sg[num+1], &vbr->status, sizeof(vbr->status));
@@ -130,7 +130,7 @@ static void do_virtblk_request(struct request_queue *q)
 
 	while ((req = elv_next_request(q)) != NULL) {
 		vblk = req->rq_disk->private_data;
-		BUG_ON(req->nr_phys_segments > ARRAY_SIZE(vblk->sg));
+		BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems);
 
 		/* If this request fails, stop queue and wait for something to
 		   finish to restart it. */
@@ -196,12 +196,22 @@ static int virtblk_probe(struct virtio_device *vdev)
 	int err;
 	u64 cap;
 	u32 v;
-	u32 blk_size;
+	u32 blk_size, sg_elems;
 
 	if (index_to_minor(index) >= 1 << MINORBITS)
 		return -ENOSPC;
 
-	vdev->priv = vblk = kmalloc(sizeof(*vblk), GFP_KERNEL);
+	/* We need to know how many segments before we allocate. */
+	err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX,
+				offsetof(struct virtio_blk_config, seg_max),
+				&sg_elems);
+	if (err)
+		sg_elems = 1;
+
+	/* We need an extra sg elements at head and tail. */
+	sg_elems += 2;
+	vdev->priv = vblk = kmalloc(sizeof(*vblk) +
+				    sizeof(vblk->sg[0]) * sg_elems, GFP_KERNEL);
 	if (!vblk) {
 		err = -ENOMEM;
 		goto out;
@@ -210,6 +220,8 @@ static int virtblk_probe(struct virtio_device *vdev)
 	INIT_LIST_HEAD(&vblk->reqs);
 	spin_lock_init(&vblk->lock);
 	vblk->vdev = vdev;
+	vblk->sg_elems = sg_elems;
+	sg_init_table(vblk->sg, vblk->sg_elems);
 
 	/* We expect one virtqueue, for output. */
 	vblk->vq = vdev->config->find_vq(vdev, 0, blk_done);
@@ -237,6 +249,8 @@ static int virtblk_probe(struct virtio_device *vdev)
 		goto out_put_disk;
 	}
 
+	queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue);
+
 	if (index < 26) {
 		sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
 	} else if (index < (26 + 1) * 26) {
@@ -277,6 +291,13 @@ static int virtblk_probe(struct virtio_device *vdev)
 	}
 	set_capacity(vblk->disk, cap);
 
+	/* We can handle whatever the host told us to handle. */
+	blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
+	blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
+
+	/* No real sector limit. */
+	blk_queue_max_sectors(vblk->disk->queue, -1U);
+
 	/* Host can optionally specify maximum segment size and number of
 	 * segments. */
 	err = virtio_config_val(vdev, VIRTIO_BLK_F_SIZE_MAX,
@@ -284,12 +305,8 @@ static int virtblk_probe(struct virtio_device *vdev)
 				&v);
 	if (!err)
 		blk_queue_max_segment_size(vblk->disk->queue, v);
-
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX,
-				offsetof(struct virtio_blk_config, seg_max),
-				&v);
-	if (!err)
-		blk_queue_max_hw_segments(vblk->disk->queue, v);
+	else
+		blk_queue_max_segment_size(vblk->disk->queue, -1U);
 
 	/* Host can optionally specify the block size of the device */
 	err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index b220c686089..918ef725de4 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -343,7 +343,7 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size)
 	if (rq == NULL)
 		return -1;
 
-	elevator_init(rq, "noop");
+	queue_flag_set_unlocked(QUEUE_FLAG_VIRT, rq);
 
 	/* Hard sector size and max sectors impersonate the equiv. hardware. */
 	blk_queue_hardsect_size(rq, sector_size);
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index ecab9e67d47..381d686fc1a 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -194,7 +194,7 @@ struct ace_device {
 	int in_irq;
 
 	/* Details of hardware device */
-	unsigned long physaddr;
+	resource_size_t physaddr;
 	void __iomem *baseaddr;
 	int irq;
 	int bus_width;		/* 0 := 8 bit; 1 := 16 bit */
@@ -628,8 +628,8 @@ static void ace_fsm_dostate(struct ace_device *ace)
 
 		/* Okay, it's a data request, set it up for transfer */
 		dev_dbg(ace->dev,
-			"request: sec=%lx hcnt=%lx, ccnt=%x, dir=%i\n",
-			req->sector, req->hard_nr_sectors,
+			"request: sec=%llx hcnt=%lx, ccnt=%x, dir=%i\n",
+			(unsigned long long) req->sector, req->hard_nr_sectors,
 			req->current_nr_sectors, rq_data_dir(req));
 
 		ace->req = req;
@@ -935,7 +935,8 @@ static int __devinit ace_setup(struct ace_device *ace)
 	int rc;
 
 	dev_dbg(ace->dev, "ace_setup(ace=0x%p)\n", ace);
-	dev_dbg(ace->dev, "physaddr=0x%lx irq=%i\n", ace->physaddr, ace->irq);
+	dev_dbg(ace->dev, "physaddr=0x%llx irq=%i\n",
+		(unsigned long long)ace->physaddr, ace->irq);
 
 	spin_lock_init(&ace->lock);
 	init_completion(&ace->id_completion);
@@ -1017,8 +1018,8 @@ static int __devinit ace_setup(struct ace_device *ace)
 	/* Print the identification */
 	dev_info(ace->dev, "Xilinx SystemACE revision %i.%i.%i\n",
 		 (version >> 12) & 0xf, (version >> 8) & 0x0f, version & 0xff);
-	dev_dbg(ace->dev, "physaddr 0x%lx, mapped to 0x%p, irq=%i\n",
-		ace->physaddr, ace->baseaddr, ace->irq);
+	dev_dbg(ace->dev, "physaddr 0x%llx, mapped to 0x%p, irq=%i\n",
+		(unsigned long long) ace->physaddr, ace->baseaddr, ace->irq);
 
 	ace->media_change = 1;
 	ace_revalidate_disk(ace->gd);
@@ -1035,8 +1036,8 @@ err_alloc_disk:
 err_blk_initq:
 	iounmap(ace->baseaddr);
 err_ioremap:
-	dev_info(ace->dev, "xsysace: error initializing device at 0x%lx\n",
-	       ace->physaddr);
+	dev_info(ace->dev, "xsysace: error initializing device at 0x%llx\n",
+		 (unsigned long long) ace->physaddr);
 	return -ENOMEM;
 }
 
@@ -1059,7 +1060,7 @@ static void __devexit ace_teardown(struct ace_device *ace)
 }
 
 static int __devinit
-ace_alloc(struct device *dev, int id, unsigned long physaddr,
+ace_alloc(struct device *dev, int id, resource_size_t physaddr,
 	  int irq, int bus_width)
 {
 	struct ace_device *ace;
@@ -1119,7 +1120,7 @@ static void __devexit ace_free(struct device *dev)
 
 static int __devinit ace_probe(struct platform_device *dev)
 {
-	unsigned long physaddr = 0;
+	resource_size_t physaddr = 0;
 	int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */
 	int id = dev->id;
 	int irq = NO_IRQ;
@@ -1165,7 +1166,7 @@ static int __devinit
 ace_of_probe(struct of_device *op, const struct of_device_id *match)
 {
 	struct resource res;
-	unsigned long physaddr;
+	resource_size_t physaddr;
 	const u32 *id;
 	int irq, bus_width, rc;
 
@@ -1205,6 +1206,7 @@ static struct of_device_id ace_of_match[] __devinitdata = {
 	{ .compatible = "xlnx,opb-sysace-1.00.b", },
 	{ .compatible = "xlnx,opb-sysace-1.00.c", },
 	{ .compatible = "xlnx,xps-sysace-1.00.a", },
+	{ .compatible = "xlnx,sysace", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ace_of_match);