Merge branch 'linus' into perfcounters/core

Merge reason: This brach was on -rc1, refresh it to almost-rc4 to pick up
              the latest upstream fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 files changed, 42 insertions, 34 deletions

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bdd4f5f..5f7e64b 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -275,8 +275,10 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
 	if (rw == READ) {
 		copy_from_brd(mem + off, brd, sector, len);
 		flush_dcache_page(page);
-	} else
+	} else {
+		flush_dcache_page(page);
 		copy_to_brd(brd, mem + off, sector, len);
+	}
 	kunmap_atomic(mem, KM_USER0);
 
 out:
@@ -436,6 +438,7 @@ static struct brd_device *brd_alloc(int i)
 	if (!brd->brd_queue)
 		goto out_free_dev;
 	blk_queue_make_request(brd->brd_queue, brd_make_request);
+	blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
 	blk_queue_max_sectors(brd->brd_queue, 1024);
 	blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0ef6f08..4d4d5e0 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3505,7 +3505,7 @@ static __devinit int cciss_message(struct pci_dev *pdev, unsigned char opcode, u
 	/* The Inbound Post Queue only accepts 32-bit physical addresses for the
 	   CCISS commands, so they must be allocated from the lower 4GiB of
 	   memory. */
-	err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 	if (err) {
 		iounmap(vaddr);
 		return -ENOMEM;
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index 3c11f06..baaa9e4 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -509,7 +509,6 @@ ok_to_write:
 	if (i > 0) {
 		SET_HANDLER(&write_intr);
 		outsw(HD_DATA, req->buffer, 256);
-		local_irq_enable();
 	} else {
 #if (HD_DELAY > 0)
 		last_req = read_timer();
@@ -541,8 +540,7 @@ static void hd_times_out(unsigned long dummy)
 	if (!CURRENT)
 		return;
 
-	disable_irq(HD_IRQ);
-	local_irq_enable();
+	spin_lock_irq(hd_queue->queue_lock);
 	reset = 1;
 	name = CURRENT->rq_disk->disk_name;
 	printk("%s: timeout\n", name);
@@ -552,9 +550,8 @@ static void hd_times_out(unsigned long dummy)
 #endif
 		end_request(CURRENT, 0);
 	}
-	local_irq_disable();
 	hd_request();
-	enable_irq(HD_IRQ);
+	spin_unlock_irq(hd_queue->queue_lock);
 }
 
 static int do_special_op(struct hd_i_struct *disk, struct request *req)
@@ -592,7 +589,6 @@ static void hd_request(void)
 		return;
 repeat:
 	del_timer(&device_timer);
-	local_irq_enable();
 
 	req = CURRENT;
 	if (!req) {
@@ -601,7 +597,6 @@ repeat:
 	}
 
 	if (reset) {
-		local_irq_disable();
 		reset_hd();
 		return;
 	}
@@ -660,9 +655,7 @@ repeat:
 
 static void do_hd_request(struct request_queue *q)
 {
-	disable_irq(HD_IRQ);
 	hd_request();
-	enable_irq(HD_IRQ);
 }
 
 static int hd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
@@ -684,12 +677,16 @@ static irqreturn_t hd_interrupt(int irq, void *dev_id)
 {
 	void (*handler)(void) = do_hd;
 
+	spin_lock(hd_queue->queue_lock);
+
 	do_hd = NULL;
 	del_timer(&device_timer);
 	if (!handler)
 		handler = unexpected_hd_interrupt;
 	handler();
-	local_irq_enable();
+
+	spin_unlock(hd_queue->queue_lock);
+
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index fb39d9a..f389835 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -79,7 +79,7 @@ static void mg_dump_status(const char *msg, unsigned int stat,
 			if (host->breq) {
 				req = elv_next_request(host->breq);
 				if (req)
-					printk(", sector=%ld", req->sector);
+					printk(", sector=%u", (u32)req->sector);
 			}
 
 		}
@@ -160,11 +160,16 @@ static irqreturn_t mg_irq(int irq, void *dev_id)
 	struct mg_host *host = dev_id;
 	void (*handler)(struct mg_host *) = host->mg_do_intr;
 
-	host->mg_do_intr = 0;
+	spin_lock(&host->lock);
+
+	host->mg_do_intr = NULL;
 	del_timer(&host->timer);
 	if (!handler)
 		handler = mg_unexpected_intr;
 	handler(host);
+
+	spin_unlock(&host->lock);
+
 	return IRQ_HANDLED;
 }
 
@@ -319,7 +324,7 @@ static void mg_read(struct request *req)
 
 	remains = req->nr_sectors;
 
-	if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, 0) !=
+	if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, NULL) !=
 			MG_ERR_NONE)
 		mg_bad_rw_intr(host);
 
@@ -363,7 +368,7 @@ static void mg_write(struct request *req)
 
 	remains = req->nr_sectors;
 
-	if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, 0) !=
+	if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, NULL) !=
 			MG_ERR_NONE) {
 		mg_bad_rw_intr(host);
 		return;
@@ -521,9 +526,11 @@ void mg_times_out(unsigned long data)
 	char *name;
 	struct request *req;
 
+	spin_lock_irq(&host->lock);
+
 	req = elv_next_request(host->breq);
 	if (!req)
-		return;
+		goto out_unlock;
 
 	host->mg_do_intr = NULL;
 
@@ -534,6 +541,8 @@ void mg_times_out(unsigned long data)
 	mg_bad_rw_intr(host);
 
 	mg_request(host->breq);
+out_unlock:
+	spin_unlock_irq(&host->lock);
 }
 
 static void mg_request_poll(struct request_queue *q)
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 69b7f8e..689cd27 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1025,6 +1025,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 {
 	struct urb *urb = &sc->work_urb;
 	struct bulk_cs_wrap *bcs;
+	int endp;
 	int len;
 	int rc;
 
@@ -1033,6 +1034,10 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 		return;
 	}
 
+	endp = usb_pipeendpoint(sc->last_pipe);
+	if (usb_pipein(sc->last_pipe))
+		endp |= USB_DIR_IN;
+
 	if (cmd->state == UB_CMDST_CLEAR) {
 		if (urb->status == -EPIPE) {
 			/*
@@ -1048,9 +1053,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 		 * We ignore the result for the halt clear.
 		 */
 
-		/* reset the endpoint toggle */
-		usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-			usb_pipeout(sc->last_pipe), 0);
+		usb_reset_endpoint(sc->dev, endp);
 
 		ub_state_sense(sc, cmd);
 
@@ -1065,9 +1068,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 		 * We ignore the result for the halt clear.
 		 */
 
-		/* reset the endpoint toggle */
-		usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-			usb_pipeout(sc->last_pipe), 0);
+		usb_reset_endpoint(sc->dev, endp);
 
 		ub_state_stat(sc, cmd);
 
@@ -1082,9 +1083,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 		 * We ignore the result for the halt clear.
 		 */
 
-		/* reset the endpoint toggle */
-		usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-			usb_pipeout(sc->last_pipe), 0);
+		usb_reset_endpoint(sc->dev, endp);
 
 		ub_state_stat_counted(sc, cmd);
 
@@ -2119,8 +2118,7 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
 	del_timer_sync(&timer);
 	usb_kill_urb(&sc->work_urb);
 
-	/* reset the endpoint toggle */
-	usb_settoggle(sc->dev, endp, usb_pipeout(sc->last_pipe), 0);
+	usb_reset_endpoint(sc->dev, endp);
 
 	return 0;
 }
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 9744d59..858c34d 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -906,6 +906,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
 		goto failed_alloc;
 
 	blk_queue_make_request(card->queue, mm_make_request);
+	card->queue->queue_lock = &card->lock;
 	card->queue->queuedata = card;
 	card->queue->unplug_fn = mm_unplug_device;
 
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index 6cccdc3..4aecf5d 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -563,7 +563,7 @@ static void ace_fsm_dostate(struct ace_device *ace)
 	case ACE_FSM_STATE_IDENTIFY_PREPARE:
 		/* Send identify command */
 		ace->fsm_task = ACE_TASK_IDENTIFY;
-		ace->data_ptr = &ace->cf_id;
+		ace->data_ptr = ace->cf_id;
 		ace->data_count = ACE_BUF_PER_SECTOR;
 		ace_out(ace, ACE_SECCNTCMD, ACE_SECCNTCMD_IDENTIFY);
 
@@ -608,8 +608,8 @@ static void ace_fsm_dostate(struct ace_device *ace)
 		break;
 
 	case ACE_FSM_STATE_IDENTIFY_COMPLETE:
-		ace_fix_driveid(&ace->cf_id[0]);
-		ace_dump_mem(&ace->cf_id, 512);	/* Debug: Dump out disk ID */
+		ace_fix_driveid(ace->cf_id);
+		ace_dump_mem(ace->cf_id, 512);	/* Debug: Dump out disk ID */
 
 		if (ace->data_result) {
 			/* Error occured, disable the disk */
@@ -622,9 +622,9 @@ static void ace_fsm_dostate(struct ace_device *ace)
 
 			/* Record disk parameters */
 			set_capacity(ace->gd,
-				ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+				ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
 			dev_info(ace->dev, "capacity: %i sectors\n",
-				ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+				ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
 		}
 
 		/* We're done, drop to IDLE state and notify waiters */
@@ -923,7 +923,7 @@ static int ace_release(struct gendisk *disk, fmode_t mode)
 static int ace_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
 	struct ace_device *ace = bdev->bd_disk->private_data;
-	u16 *cf_id = &ace->cf_id[0];
+	u16 *cf_id = ace->cf_id;
 
 	dev_dbg(ace->dev, "ace_getgeo()\n");