Merge bk://kernel.bkbits.net/davem/sparc-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

4 files changed, 91 insertions, 26 deletions

diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 74d8e2e0f8db..ad6e7b62e66f 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -2164,8 +2164,7 @@ int end_that_request_chunk(struct request *req, int uptodate, int nr_bytes)
 void end_that_request_last(struct request *req)
 {
 	struct gendisk *disk = req->rq_disk;
-	if (req->waiting)
-		complete(req->waiting);
+	struct completion *waiting = req->waiting;
 
 	if (disk) {
 		unsigned long duration = jiffies - req->start_time;
@@ -2183,6 +2182,9 @@ void end_that_request_last(struct request *req)
 		disk_stat_dec(disk, in_flight);
 	}
 	__blk_put_request(req->q, req);
+	/* Do this LAST! The structure may be freed immediately afterwards */
+	if (waiting)
+		complete(waiting);
 }
 
 int __init blk_dev_init(void)
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index edb915b60ceb..ddfe3bb53b32 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -149,6 +149,7 @@ struct cardinfo {
 	spinlock_t 	lock;
 	int		check_batteries;
 
+	int		flags;
 };
 
 static struct cardinfo cards[MM_MAXCARDS];
@@ -573,7 +574,7 @@ static int mm_make_request(request_queue_t *q, struct bio *bio)
 --                              mm_interrupt
 -----------------------------------------------------------------------------------
 */
-static void mm_interrupt(int irq, void *__card, struct pt_regs *regs)
+static irqreturn_t mm_interrupt(int irq, void *__card, struct pt_regs *regs)
 {
 	struct cardinfo *card = (struct cardinfo *) __card;
 	unsigned int dma_status;
@@ -585,13 +586,16 @@ HW_TRACE(0x30);
 
 	if (!(dma_status & (DMASCR_ERROR_MASK | DMASCR_CHAIN_COMPLETE))) {
 		/* interrupt wasn't for me ... */
-		return;
+		return IRQ_NONE;
         }
 
 	/* clear COMPLETION interrupts */
-	writel(cpu_to_le32(DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE),
-	       card->csr_remap+ DMA_STATUS_CTRL);
-
+	if (card->flags & UM_FLAG_NO_BYTE_STATUS)
+		writel(cpu_to_le32(DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE),
+		       card->csr_remap+ DMA_STATUS_CTRL);
+	else
+		writeb((DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE) >> 16,
+		       card->csr_remap+ DMA_STATUS_CTRL + 2);
 	
 	/* log errors and clear interrupt status */
 	if (dma_status & DMASCR_ANY_ERR) {
@@ -663,6 +667,7 @@ HW_TRACE(0x30);
 
 HW_TRACE(0x36);
 
+	return IRQ_HANDLED; 
 }
 /*
 -----------------------------------------------------------------------------------
@@ -755,15 +760,16 @@ static void check_all_batteries(unsigned long ptr)
 {
 	int i;
 
-	for (i = 0; i < num_cards; i++) {
-		struct cardinfo *card = &cards[i];
-		spin_lock_bh(&card->lock);
-		if (card->Active >= 0)
-			card->check_batteries = 1;
-		else
-			check_batteries(card);
-		spin_unlock_bh(&card->lock);
-	}
+	for (i = 0; i < num_cards; i++) 
+		if (!(cards[i].flags & UM_FLAG_NO_BATT)) {
+			struct cardinfo *card = &cards[i];
+			spin_lock_bh(&card->lock);
+			if (card->Active >= 0)
+				card->check_batteries = 1;
+			else
+				check_batteries(card);
+			spin_unlock_bh(&card->lock);
+		}
 
 	init_battery_timer();
 }
@@ -869,6 +875,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i
 	unsigned char	mem_present;
 	unsigned char	batt_status;
 	unsigned int	saved_bar, data;
+	int		magic_number;
 
 	if (pci_enable_device(dev) < 0)
 		return -ENODEV;
@@ -933,12 +940,33 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i
 	printk(KERN_INFO "MM%d: MEM area not remapped (CONFIG_MM_MAP_MEMORY not set)\n",
 	       card->card_number);
 #endif
-	if (readb(card->csr_remap + MEMCTRLSTATUS_MAGIC) != MM_MAGIC_VALUE) {
+	switch(card->dev->device) {
+	case 0x5415:
+		card->flags |= UM_FLAG_NO_BYTE_STATUS | UM_FLAG_NO_BATTREG;
+		magic_number = 0x59;
+		break;
+
+	case 0x5425:
+		card->flags |= UM_FLAG_NO_BYTE_STATUS;
+		magic_number = 0x5C;
+		break;
+
+	case 0x6155:
+		card->flags |= UM_FLAG_NO_BYTE_STATUS | UM_FLAG_NO_BATTREG | UM_FLAG_NO_BATT;
+		magic_number = 0x99;
+		break;
+
+	default:
+		magic_number = 0x100;
+		break;
+	}
+
+	if (readb(card->csr_remap + MEMCTRLSTATUS_MAGIC) != magic_number) {
 		printk(KERN_ERR "MM%d: Magic number invalid\n", card->card_number);
 		ret = -ENOMEM;
-
 		goto failed_magic;
 	}
+
 	card->mm_pages[0].desc = pci_alloc_consistent(card->dev,
 						      PAGE_SIZE*2,
 						      &card->mm_pages[0].page_dma);
@@ -997,14 +1025,19 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i
 	card->battery[1].good = !(batt_status & BATTERY_2_FAILURE);
 	card->battery[0].last_change = card->battery[1].last_change = jiffies;
 
-	printk(KERN_INFO "MM%d: Size %d KB, Battery 1 %s (%s), Battery 2 %s (%s)\n",
-	       card->card_number, card->mm_size,
-	       (batt_status & BATTERY_1_DISABLED ? "Disabled" : "Enabled"),
-	       card->battery[0].good ? "OK" : "FAILURE",
-	       (batt_status & BATTERY_2_DISABLED ? "Disabled" : "Enabled"),
-	       card->battery[1].good ? "OK" : "FAILURE");
+	if (card->flags & UM_FLAG_NO_BATT) 
+		printk(KERN_INFO "MM%d: Size %d KB\n",
+		       card->card_number, card->mm_size);
+	else {
+		printk(KERN_INFO "MM%d: Size %d KB, Battery 1 %s (%s), Battery 2 %s (%s)\n",
+		       card->card_number, card->mm_size,
+		       (batt_status & BATTERY_1_DISABLED ? "Disabled" : "Enabled"),
+		       card->battery[0].good ? "OK" : "FAILURE",
+		       (batt_status & BATTERY_2_DISABLED ? "Disabled" : "Enabled"),
+		       card->battery[1].good ? "OK" : "FAILURE");
 
-	set_fault_to_battery_status(card);
+		set_fault_to_battery_status(card);
+	}
 
 	pci_read_config_dword(dev, PCI_BASE_ADDRESS_1, &saved_bar);
 	data = 0xffffffff;
@@ -1117,6 +1150,16 @@ static const struct pci_device_id __devinitdata mm_pci_ids[] = { {
 	}, {
 	.vendor =	PCI_VENDOR_ID_MICRO_MEMORY,
 	.device =	PCI_DEVICE_ID_MICRO_MEMORY_5425CN,
+	}, {
+	.vendor =	PCI_VENDOR_ID_MICRO_MEMORY,
+	.device =	PCI_DEVICE_ID_MICRO_MEMORY_6155,
+	}, {
+	.vendor	=	0x8086,
+	.device	=	0xB555,
+	.subvendor=	0x1332,
+	.subdevice=	0x5460,
+	.class	=	0x050000,
+	.class_mask=	0,
 	}, { /* end: all zeroes */ }
 };
 
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 5d013b2d6d25..d7740cc3fb37 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -1240,8 +1240,21 @@ int txCommit(tid_t tid,		/* transaction identifier */
 	 * Ensure that inode isn't reused before
 	 * lazy commit thread finishes processing
 	 */
-	if (tblk->xflag & (COMMIT_CREATE | COMMIT_DELETE))
+	if (tblk->xflag & (COMMIT_CREATE | COMMIT_DELETE)) {
 		atomic_inc(&tblk->ip->i_count);
+		/*
+		 * Avoid a rare deadlock
+		 *
+		 * If the inode is locked, we may be blocked in
+		 * jfs_commit_inode.  If so, we don't want the
+		 * lazy_commit thread doing the last iput() on the inode
+		 * since that may block on the locked inode.  Instead,
+		 * commit the transaction synchronously, so the last iput
+		 * will be done by the calling thread (or later)
+		 */
+		if (tblk->ip->i_state & I_LOCK)
+			tblk->xflag &= ~COMMIT_LAZY;
+	}
 
 	ASSERT((!(tblk->xflag & COMMIT_DELETE)) ||
 	       ((tblk->ip->i_nlink == 0) &&
diff --git a/include/linux/umem.h b/include/linux/umem.h
index d6e89299de31..2eb1f55644cc 100644
--- a/include/linux/umem.h
+++ b/include/linux/umem.h
@@ -128,4 +128,11 @@ struct mm_dma_desc {
 #define PCI_VENDOR_ID_MICRO_MEMORY		0x1332
 #define PCI_DEVICE_ID_MICRO_MEMORY_5415CN	0x5415
 #define PCI_DEVICE_ID_MICRO_MEMORY_5425CN	0x5425
+#define PCI_DEVICE_ID_MICRO_MEMORY_6155		0x6155
+
+/* bits for card->flags */
+#define UM_FLAG_DMA_IN_REGS		1
+#define UM_FLAG_NO_BYTE_STATUS		2
+#define UM_FLAG_NO_BATTREG		4
+#define	UM_FLAG_NO_BATT			8
 #endif