Merge branch 'master' into upstream-fixes

[linux-2.6.git] / block / ioctl.c

diff --git a/block/ioctl.c b/block/ioctl.c
index 9cfa2e1ecb24c2568e020222026271f68631deb7..58aab630dfc1a55eaf06975d5a48600b5f14e49e 100644 (file)
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -72,7 +72,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
                        bdevp = bdget_disk(disk, part);
                        if (!bdevp)
                                return -ENOMEM;
-                       mutex_lock(&bdevp->bd_mutex);
+                       mutex_lock_nested(&bdevp->bd_mutex, BD_MUTEX_PARTITION);
                        if (bdevp->bd_openers) {
                                mutex_unlock(&bdevp->bd_mutex);
                                bdput(bdevp);
@@ -82,7 +82,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
                        fsync_bdev(bdevp);
                        invalidate_bdev(bdevp, 0);
 
-                       mutex_lock(&bdev->bd_mutex);
+                       mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_WHOLE);
                        delete_partition(disk, part);
                        mutex_unlock(&bdev->bd_mutex);
                        mutex_unlock(&bdevp->bd_mutex);
@@ -199,8 +199,8 @@ static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev,
        return -ENOIOCTLCMD;
 }
 
-static int blkdev_driver_ioctl(struct inode *inode, struct file *file,
-               struct gendisk *disk, unsigned cmd, unsigned long arg)
+int blkdev_driver_ioctl(struct inode *inode, struct file *file,
+                       struct gendisk *disk, unsigned cmd, unsigned long arg)
 {
        int ret;
        if (disk->fops->unlocked_ioctl)
@@ -215,6 +215,7 @@ static int blkdev_driver_ioctl(struct inode *inode, struct file *file,
 
        return -ENOTTY;
 }
+EXPORT_SYMBOL_GPL(blkdev_driver_ioctl);
 
 int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
                        unsigned long arg)