new helper: mount_bdev()

... and switch of the obvious get_sb_bdev() users to ->mount()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index c969a1a..bb69389 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -686,17 +686,16 @@
 	return -EINVAL;
 }
 
-static int hpfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *hpfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hpfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, hpfs_fill_super);
 }
 
 static struct file_system_type hpfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hpfs",
-	.get_sb		= hpfs_get_sb,
+	.mount		= hpfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };