Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

[sfrench/cifs-2.6.git] / block / ioctl.c

diff --git a/block/ioctl.c b/block/ioctl.c
index e8eb679f2f9b19a7a6dacc4e1983c837345830dd..09fd7f1ef23a4ad3fefe2f7b4743d701c9764540 100644 (file)
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -163,18 +163,10 @@ int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
                        unsigned cmd, unsigned long arg)
 {
        struct gendisk *disk = bdev->bd_disk;
-       int ret;
 
        if (disk->fops->ioctl)
                return disk->fops->ioctl(bdev, mode, cmd, arg);
 
-       if (disk->fops->locked_ioctl) {
-               lock_kernel();
-               ret = disk->fops->locked_ioctl(bdev, mode, cmd, arg);
-               unlock_kernel();
-               return ret;
-       }
-
        return -ENOTTY;
 }
 /*
@@ -185,8 +177,7 @@ int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
 EXPORT_SYMBOL_GPL(__blkdev_driver_ioctl);
 
 /*
- * always keep this in sync with compat_blkdev_ioctl() and
- * compat_blkdev_locked_ioctl()
+ * always keep this in sync with compat_blkdev_ioctl()
  */
 int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                        unsigned long arg)
@@ -206,10 +197,8 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                if (ret != -EINVAL && ret != -ENOTTY)
                        return ret;
 
-               lock_kernel();
                fsync_bdev(bdev);
                invalidate_bdev(bdev);
-               unlock_kernel();
                return 0;
 
        case BLKROSET:
@@ -221,9 +210,7 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                        return -EACCES;
                if (get_user(n, (int __user *)(arg)))
                        return -EFAULT;
-               lock_kernel();
                set_device_ro(bdev, n);
-               unlock_kernel();
                return 0;
 
        case BLKDISCARD: {
@@ -309,14 +296,10 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
                        bd_release(bdev);
                return ret;
        case BLKPG:
-               lock_kernel();
                ret = blkpg_ioctl(bdev, (struct blkpg_ioctl_arg __user *) arg);
-               unlock_kernel();
                break;
        case BLKRRPART:
-               lock_kernel();
                ret = blkdev_reread_part(bdev);
-               unlock_kernel();
                break;
        case BLKGETSIZE:
                size = bdev->bd_inode->i_size;
@@ -329,9 +312,7 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
        case BLKTRACESTOP:
        case BLKTRACESETUP:
        case BLKTRACETEARDOWN:
-               lock_kernel();
                ret = blk_trace_ioctl(bdev, cmd, (char __user *) arg);
-               unlock_kernel();
                break;
        default:
                ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg);