Merge commit 'v2.6.29-rc2' into perfcounters/core

Conflicts:
	include/linux/syscalls.h

7 files changed, 30 insertions, 28 deletions

diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 977dfb1..f6094ae 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -103,7 +103,7 @@ static ssize_t
 bsr_len_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct bsr_dev *bsr_dev = dev_get_drvdata(dev);
-	return sprintf(buf, "%lu\n", bsr_dev->bsr_len);
+	return sprintf(buf, "%llu\n", bsr_dev->bsr_len);
 }
 
 static struct device_attribute bsr_dev_attrs[] = {
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 5a8a4c2..94e7e3c 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -318,7 +318,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 	} /* else count == 0 */
 
 	tty->driver_data = hp;
-	tty->low_latency = 1; /* Makes flushes to ldisc synchronous. */
 
 	hp->tty = tty;
 
@@ -764,13 +763,11 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int data,
 			return ERR_PTR(err);
 	}
 
-	hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+	hp = kzalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
 			GFP_KERNEL);
 	if (!hp)
 		return ERR_PTR(-ENOMEM);
 
-	memset(hp, 0x00, sizeof(*hp));
-
 	hp->vtermno = vtermno;
 	hp->data = data;
 	hp->ops = ops;
@@ -876,8 +873,11 @@ static int hvc_init(void)
 		goto stop_thread;
 	}
 
-	/* FIXME: This mb() seems completely random.  Remove it. */
-	mb();
+	/*
+	 * Make sure tty is fully registered before allowing it to be
+	 * found by hvc_console_device.
+	 */
+	smp_mb();
 	hvc_driver = drv;
 	return 0;
 
diff --git a/drivers/char/hvc_irq.c b/drivers/char/hvc_irq.c
index d09e568..2623e17 100644
--- a/drivers/char/hvc_irq.c
+++ b/drivers/char/hvc_irq.c
@@ -37,7 +37,7 @@ int notifier_add_irq(struct hvc_struct *hp, int irq)
 
 void notifier_del_irq(struct hvc_struct *hp, int irq)
 {
-	if (!irq)
+	if (!hp->irq_requested)
 		return;
 	free_irq(irq, hp);
 	hp->irq_requested = 0;
diff --git a/drivers/char/ps3flash.c b/drivers/char/ps3flash.c
index 79b6f46..afbe456 100644
--- a/drivers/char/ps3flash.c
+++ b/drivers/char/ps3flash.c
@@ -44,7 +44,7 @@ static ssize_t ps3flash_read_write_sectors(struct ps3_storage_device *dev,
 	u64 res = ps3stor_read_write_sectors(dev, lpar, start_sector, sectors,
 					     write);
 	if (res) {
-		dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%lx\n", __func__,
+		dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__,
 			__LINE__, write ? "write" : "read", res);
 		return -EIO;
 	}
@@ -59,7 +59,7 @@ static ssize_t ps3flash_read_sectors(struct ps3_storage_device *dev,
 
 	max_sectors = dev->bounce_size / dev->blk_size;
 	if (sectors > max_sectors) {
-		dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %lu\n",
+		dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %llu\n",
 			__func__, __LINE__, max_sectors);
 		sectors = max_sectors;
 	}
@@ -144,7 +144,7 @@ static ssize_t ps3flash_read(struct file *file, char __user *buf, size_t count,
 			goto fail;
 		}
 
-		n = min(remaining, sectors_read*dev->blk_size-offset);
+		n = min_t(u64, remaining, sectors_read*dev->blk_size-offset);
 		dev_dbg(&dev->sbd.core,
 			"%s:%u: copy %lu bytes from 0x%p to user 0x%p\n",
 			__func__, __LINE__, n, dev->bounce_buf+offset, buf);
@@ -225,7 +225,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
 		if (end_read_sector >= start_read_sector) {
 			/* Merge head and tail */
 			dev_dbg(&dev->sbd.core,
-				"Merged head and tail: %lu sectors at %lu\n",
+				"Merged head and tail: %llu sectors at %llu\n",
 				chunk_sectors, start_write_sector);
 			res = ps3flash_read_sectors(dev, start_write_sector,
 						    chunk_sectors, 0);
@@ -235,7 +235,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
 			if (head) {
 				/* Read head */
 				dev_dbg(&dev->sbd.core,
-					"head: %lu sectors at %lu\n", head,
+					"head: %llu sectors at %llu\n", head,
 					start_write_sector);
 				res = ps3flash_read_sectors(dev,
 							    start_write_sector,
@@ -247,7 +247,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
 			    start_write_sector+chunk_sectors) {
 				/* Read tail */
 				dev_dbg(&dev->sbd.core,
-					"tail: %lu sectors at %lu\n", tail,
+					"tail: %llu sectors at %llu\n", tail,
 					start_read_sector);
 				sec_off = start_read_sector-start_write_sector;
 				res = ps3flash_read_sectors(dev,
@@ -258,7 +258,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
 			}
 		}
 
-		n = min(remaining, dev->bounce_size-offset);
+		n = min_t(u64, remaining, dev->bounce_size-offset);
 		dev_dbg(&dev->sbd.core,
 			"%s:%u: copy %lu bytes from user 0x%p to 0x%p\n",
 			__func__, __LINE__, n, buf, dev->bounce_buf+offset);
@@ -299,11 +299,11 @@ static irqreturn_t ps3flash_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);
 	} else {
 		dev->lv1_status = status;
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 53544e2..f329f45 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -1,6 +1,4 @@
 /*
- * $Id: synclink_gt.c,v 4.50 2007/07/25 19:29:25 paulkf Exp $
- *
  * Device driver for Microgate SyncLink GT serial adapters.
  *
  * written by Paul Fulghum for Microgate Corporation
@@ -91,7 +89,6 @@
  * module identification
  */
 static char *driver_name     = "SyncLink GT";
-static char *driver_version  = "$Revision: 4.50 $";
 static char *tty_driver_name = "synclink_gt";
 static char *tty_dev_prefix  = "ttySLG";
 MODULE_LICENSE("GPL");
@@ -1309,7 +1306,7 @@ static int read_proc(char *page, char **start, off_t off, int count,
 	off_t	begin = 0;
 	struct slgt_info *info;
 
-	len += sprintf(page, "synclink_gt driver:%s\n", driver_version);
+	len += sprintf(page, "synclink_gt driver\n");
 
 	info = slgt_device_list;
 	while( info ) {
@@ -2441,7 +2438,7 @@ static void program_hw(struct slgt_info *info)
 	info->ri_chkcount = 0;
 	info->dsr_chkcount = 0;
 
-	slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR);
+	slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
 	get_signals(info);
 
 	if (info->netcount ||
@@ -3576,7 +3573,7 @@ static void slgt_cleanup(void)
 	struct slgt_info *info;
 	struct slgt_info *tmp;
 
-	printk("unload %s %s\n", driver_name, driver_version);
+	printk(KERN_INFO "unload %s\n", driver_name);
 
 	if (serial_driver) {
 		for (info=slgt_device_list ; info != NULL ; info=info->next_device)
@@ -3619,7 +3616,7 @@ static int __init slgt_init(void)
 {
 	int rc;
 
- 	printk("%s %s\n", driver_name, driver_version);
+	printk(KERN_INFO "%s\n", driver_name);
 
 	serial_driver = alloc_tty_driver(MAX_DEVICES);
 	if (!serial_driver) {
@@ -3650,9 +3647,8 @@ static int __init slgt_init(void)
 		goto error;
 	}
 
- 	printk("%s %s, tty major#%d\n",
-		driver_name, driver_version,
-		serial_driver->major);
+	printk(KERN_INFO "%s, tty major#%d\n",
+	       driver_name, serial_driver->major);
 
 	slgt_device_count = 0;
 	if ((rc = pci_register_driver(&pci_driver)) < 0) {
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5a3eab0..fa71b84 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -475,6 +475,12 @@ void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
 	unsigned long flags;
 
 	spin_lock_irqsave(&sysrq_key_table_lock, flags);
+	/*
+	 * Raise the apparent loglevel to maximum so that the sysrq header
+	 * is shown to provide the user with positive feedback.  We do not
+	 * simply emit this at KERN_EMERG as that would change message
+	 * routing in the consumers of /proc/kmsg.
+	 */
 	orig_log_level = console_loglevel;
 	console_loglevel = 7;
 	printk(KERN_INFO "SysRq : ");
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index a408c8e..6f4c7d0 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -1057,7 +1057,7 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
 	if (retval)
 		return retval;
 
-	ld = tty_ldisc_ref(tty);
+	ld = tty_ldisc_ref_wait(tty);
 	switch (arg) {
 	case TCIFLUSH:
 		if (ld && ld->ops->flush_buffer)