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

121 files changed, 28381 insertions, 3571 deletions

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index c2c95e61450..1300df6f164 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -177,6 +177,7 @@ static int print_unex = 1;
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/buffer_head.h>	/* for invalidate_buffers() */
 #include <linux/mutex.h>
 
@@ -4597,6 +4598,13 @@ MODULE_AUTHOR("Alain L. Knaff");
 MODULE_SUPPORTED_DEVICE("fd");
 MODULE_LICENSE("GPL");
 
+/* This doesn't actually get used other than for module information */
+static const struct pnp_device_id floppy_pnpids[] = {
+	{ "PNP0700", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(pnp, floppy_pnpids);
+
 #else
 
 __setup("floppy=", floppy_setup);
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 8299e2d3b61..4d6de4f15cc 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -4,7 +4,7 @@
  * Note that you can not swap over this thing, yet. Seems to work but
  * deadlocks sometimes - you can not swap over TCP in general.
  * 
- * Copyright 1997-2000 Pavel Machek <pavel@ucw.cz>
+ * Copyright 1997-2000, 2008 Pavel Machek <pavel@suse.cz>
  * Parts copyright 2001 Steven Whitehouse <steve@chygwyn.com>
  *
  * This file is released under GPLv2 or later.
@@ -276,7 +276,7 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req)
 	return 0;
 
 error_out:
-	return 1;
+	return -EIO;
 }
 
 static struct request *nbd_find_request(struct nbd_device *lo,
@@ -467,9 +467,7 @@ static void nbd_handle_req(struct nbd_device *lo, struct request *req)
 		mutex_unlock(&lo->tx_lock);
 		printk(KERN_ERR "%s: Attempted send on closed socket\n",
 		       lo->disk->disk_name);
-		req->errors++;
-		nbd_end_request(req);
-		return;
+		goto error_out;
 	}
 
 	lo->active_req = req;
@@ -531,7 +529,7 @@ static int nbd_thread(void *data)
  *   { printk( "Warning: Ignoring result!\n"); nbd_end_request( req ); }
  */
 
-static void do_nbd_request(struct request_queue * q)
+static void do_nbd_request(struct request_queue *q)
 {
 	struct request *req;
 	
@@ -568,27 +566,17 @@ static void do_nbd_request(struct request_queue * q)
 	}
 }
 
-static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
-		     unsigned int cmd, unsigned long arg)
-{
-	struct nbd_device *lo = bdev->bd_disk->private_data;
-	struct file *file;
-	int error;
-	struct request sreq ;
-	struct task_struct *thread;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	BUG_ON(lo->magic != LO_MAGIC);
-
-	/* Anyone capable of this syscall can do *real bad* things */
-	dprintk(DBG_IOCTL, "%s: nbd_ioctl cmd=%s(0x%x) arg=%lu\n",
-			lo->disk->disk_name, ioctl_cmd_to_ascii(cmd), cmd, arg);
+/* Must be called with tx_lock held */
 
+static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo,
+		       unsigned int cmd, unsigned long arg)
+{
 	switch (cmd) {
-	case NBD_DISCONNECT:
+	case NBD_DISCONNECT: {
+		struct request sreq;
+
 	        printk(KERN_INFO "%s: NBD_DISCONNECT\n", lo->disk->disk_name);
+
 		blk_rq_init(NULL, &sreq);
 		sreq.cmd_type = REQ_TYPE_SPECIAL;
 		nbd_cmd(&sreq) = NBD_CMD_DISC;
@@ -599,29 +587,29 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
 		 */
 		sreq.sector = 0;
 		sreq.nr_sectors = 0;
-                if (!lo->sock)
+		if (!lo->sock)
 			return -EINVAL;
-		mutex_lock(&lo->tx_lock);
-                nbd_send_req(lo, &sreq);
-		mutex_unlock(&lo->tx_lock);
+		nbd_send_req(lo, &sreq);
                 return 0;
+	}
  
-	case NBD_CLEAR_SOCK:
-		error = 0;
-		mutex_lock(&lo->tx_lock);
+	case NBD_CLEAR_SOCK: {
+		struct file *file;
+
 		lo->sock = NULL;
-		mutex_unlock(&lo->tx_lock);
 		file = lo->file;
 		lo->file = NULL;
 		nbd_clear_que(lo);
 		BUG_ON(!list_empty(&lo->queue_head));
 		if (file)
 			fput(file);
-		return error;
-	case NBD_SET_SOCK:
+		return 0;
+	}
+
+	case NBD_SET_SOCK: {
+		struct file *file;
 		if (lo->file)
 			return -EBUSY;
-		error = -EINVAL;
 		file =