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, 23 insertions, 7 deletions

diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index fc593fbab696..e6733bc99724 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -53,6 +53,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2o.h>
+#include <linux/smp_lock.h>
 
 #include <linux/mempool.h>
 
@@ -577,6 +578,7 @@ static int i2o_block_open(struct block_device *bdev, fmode_t mode)
         if (!dev->i2o_dev)
                 return -ENODEV;
 
+        lock_kernel();
         if (dev->power > 0x1f)
                 i2o_block_device_power(dev, 0x02);
 
@@ -585,6 +587,7 @@ static int i2o_block_open(struct block_device *bdev, fmode_t mode)
         i2o_block_device_lock(dev->i2o_dev, -1);
 
         osm_debug("Ready.\n");
+        unlock_kernel();
 
         return 0;
 };
@@ -615,6 +618,7 @@ static int i2o_block_release(struct gendisk *disk, fmode_t mode)
         if (!dev->i2o_dev)
                 return 0;
 
+        lock_kernel();
         i2o_block_device_flush(dev->i2o_dev);
 
         i2o_block_device_unlock(dev->i2o_dev, -1);
@@ -625,6 +629,7 @@ static int i2o_block_release(struct gendisk *disk, fmode_t mode)
                 operation = 0x24;
 
         i2o_block_device_power(dev, operation);
+        unlock_kernel();
 
         return 0;
 }
@@ -652,30 +657,40 @@ static int i2o_block_ioctl(struct block_device *bdev, fmode_t mode,
 {
         struct gendisk *disk = bdev->bd_disk;
         struct i2o_block_device *dev = disk->private_data;
+        int ret = -ENOTTY;
 
         /* Anyone capable of this syscall can do *real bad* things */
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
+        lock_kernel();
         switch (cmd) {
         case BLKI2OGRSTRAT:
-                return put_user(dev->rcache, (int __user *)arg);
+                ret = put_user(dev->rcache, (int __user *)arg);
+                break;
         case BLKI2OGWSTRAT:
-                return put_user(dev->wcache, (int __user *)arg);
+                ret = put_user(dev->wcache, (int __user *)arg);
+                break;
         case BLKI2OSRSTRAT:
+                ret = -EINVAL;
                 if (arg < 0 || arg > CACHE_SMARTFETCH)
-                        return -EINVAL;
+                        break;
                 dev->rcache = arg;
+                ret = 0;
                 break;
         case BLKI2OSWSTRAT:
+                ret = -EINVAL;
                 if (arg != 0
                     && (arg < CACHE_WRITETHROUGH || arg > CACHE_SMARTBACK))
-                        return -EINVAL;
+                        break;
                 dev->wcache = arg;
+                ret = 0;
                 break;
         }
-        return -ENOTTY;
+        unlock_kernel();
+
+        return ret;
 };
 
 /**
@@ -883,7 +898,7 @@ static void i2o_block_request_fn(struct request_queue *q)
                 if (!req)
                         break;
 
-                if (blk_fs_request(req)) {
+                if (req->cmd_type == REQ_TYPE_FS) {
                         struct i2o_block_delayed_request *dreq;
                         struct i2o_block_request *ireq = req->special;
                         unsigned int queue_depth;
@@ -930,7 +945,8 @@ static const struct block_device_operations i2o_block_fops = {
         .owner = THIS_MODULE,
         .open = i2o_block_open,
         .release = i2o_block_release,
-        .locked_ioctl = i2o_block_ioctl,
+        .ioctl = i2o_block_ioctl,
+        .compat_ioctl = i2o_block_ioctl,
         .getgeo = i2o_block_getgeo,
         .media_changed = i2o_block_media_changed
 };