Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block: (149 commits)
  block: make sure that REQ_* types are seen even with CONFIG_BLOCK=n
  xen-blkfront: fix missing out label
  blkdev: fix blkdev_issue_zeroout return value
  block: update request stacking methods to support discards
  block: fix missing export of blk_types.h
  writeback: fix bad _bh spinlock nesting
  drbd: revert "delay probes", feature is being re-implemented differently
  drbd: Initialize all members of sync_conf to their defaults [Bugz 315]
  drbd: Disable delay probes for the upcomming release
  writeback: cleanup bdi_register
  writeback: add new tracepoints
  writeback: remove unnecessary init_timer call
  writeback: optimize periodic bdi thread wakeups
  writeback: prevent unnecessary bdi threads wakeups
  writeback: move bdi threads exiting logic to the forker thread
  writeback: restructure bdi forker loop a little
  writeback: move last_active to bdi
  writeback: do not remove bdi from bdi_list
  writeback: simplify bdi code a little
  writeback: do not lose wake-ups in bdi threads
  ...

Fixed up pretty trivial conflicts in drivers/block/virtio_blk.c and
drivers/scsi/scsi_error.c as per Jens.

1 files changed, 29 insertions, 3 deletions

diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index ed6fb91..cc6a386 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -25,6 +25,7 @@
 #include <linux/ioctl.h>
 #include <linux/blkdev.h>
 #include <linux/interrupt.h>
+#include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <asm/io.h>
@@ -839,7 +840,7 @@ static int fd_eject(struct floppy_state *fs)
 static struct floppy_struct floppy_type =
 	{ 2880,18,2,80,0,0x1B,0x00,0xCF,0x6C,NULL };	/*  7 1.44MB 3.5"   */
 
-static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
+static int floppy_locked_ioctl(struct block_device *bdev, fmode_t mode,
 			unsigned int cmd, unsigned long param)
 {
 	struct floppy_state *fs = bdev->bd_disk->private_data;
@@ -867,6 +868,18 @@ static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
 	return -ENOTTY;
 }
 
+static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
+				 unsigned int cmd, unsigned long param)
+{
+	int ret;
+
+	lock_kernel();
+	ret = floppy_locked_ioctl(bdev, mode, cmd, param);
+	unlock_kernel();
+
+	return ret;
+}
+
 static int floppy_open(struct block_device *bdev, fmode_t mode)
 {
 	struct floppy_state *fs = bdev->bd_disk->private_data;
@@ -936,15 +949,28 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
 	return 0;
 }
 
+static int floppy_unlocked_open(struct block_device *bdev, fmode_t mode)
+{
+	int ret;
+
+	lock_kernel();
+	ret = floppy_open(bdev, mode);
+	unlock_kernel();
+
+	return ret;
+}
+
 static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
 	struct floppy_state *fs = disk->private_data;
 	struct swim3 __iomem *sw = fs->swim3;
+	lock_kernel();
 	if (fs->ref_count > 0 && --fs->ref_count == 0) {
 		swim3_action(fs, MOTOR_OFF);
 		out_8(&sw->control_bic, 0xff);
 		swim3_select(fs, RELAX);
 	}
+	unlock_kernel();
 	return 0;
 }
 
@@ -995,9 +1021,9 @@ static int floppy_revalidate(struct gendisk *disk)
 }
 
 static const struct block_device_operations floppy_fops = {
-	.open		= floppy_open,
+	.open		= floppy_unlocked_open,
 	.release	= floppy_release,
-	.locked_ioctl	= floppy_ioctl,
+	.ioctl		= floppy_ioctl,
 	.media_changed	= floppy_check_change,
 	.revalidate_disk= floppy_revalidate,
 };