X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=block%2Fioctl.c;h=77185e5c026a659e300c69b276de3c5ccbb7327b;hb=7c19a3d280297d43ef5ff7c6b205dc208a16d3d1;hp=9cfa2e1ecb24c2568e020222026271f68631deb7;hpb=2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4;p=safe%2Fjmp%2Flinux-2.6

diff --git a/block/ioctl.c b/block/ioctl.c
index 9cfa2e1..77185e5 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -17,6 +17,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 	long long start, length;
 	int part;
 	int i;
+	int err;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
@@ -61,9 +62,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 				}
 			}
 			/* all seems OK */
-			add_partition(disk, part, start, length);
+			err = add_partition(disk, part, start, length, ADDPART_FLAG_NONE);
 			mutex_unlock(&bdev->bd_mutex);
-			return 0;
+			return err;
 		case BLKPG_DEL_PARTITION:
 			if (!disk->part[part-1])
 				return -ENXIO;
@@ -80,9 +81,9 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 			}
 			/* all seems OK */
 			fsync_bdev(bdevp);
-			invalidate_bdev(bdevp, 0);
+			invalidate_bdev(bdevp);
 
-			mutex_lock(&bdev->bd_mutex);
+			mutex_lock_nested(&bdev->bd_mutex, 1);
 			delete_partition(disk, part);
 			mutex_unlock(&bdev->bd_mutex);
 			mutex_unlock(&bdevp->bd_mutex);
@@ -199,8 +200,8 @@ 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)
@@ -215,7 +216,12 @@ static int blkdev_driver_ioctl(struct inode *inode, struct file *file,
 
 	return -ENOTTY;
 }
+EXPORT_SYMBOL_GPL(blkdev_driver_ioctl);
 
+/*
+ * always keep this in sync with compat_blkdev_ioctl() and
+ * compat_blkdev_locked_ioctl()
+ */
 int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
 			unsigned long arg)
 {
@@ -235,7 +241,7 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
 
 		lock_kernel();
 		fsync_bdev(bdev);
-		invalidate_bdev(bdev, 0);
+		invalidate_bdev(bdev);
 		unlock_kernel();
 		return 0;
 
@@ -283,21 +289,4 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
 
 	return blkdev_driver_ioctl(inode, file, disk, cmd, arg);
 }
-
-/* Most of the generic ioctls are handled in the normal fallback path.
-   This assumes the blkdev's low level compat_ioctl always returns
-   ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
-	struct block_device *bdev = file->f_dentry->d_inode->i_bdev;
-	struct gendisk *disk = bdev->bd_disk;
-	int ret = -ENOIOCTLCMD;
-	if (disk->fops->compat_ioctl) {
-		lock_kernel();
-		ret = disk->fops->compat_ioctl(file, cmd, arg);
-		unlock_kernel();
-	}
-	return ret;
-}
-
 EXPORT_SYMBOL_GPL(blkdev_ioctl);