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/reiserfs/super.c b/fs/reiserfs/super.c
index e15ff612..3bf7a64 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2213,12 +2213,11 @@
 
 #endif
 
-static int get_super_block(struct file_system_type *fs_type,
+static struct dentry *get_super_block(struct file_system_type *fs_type,
 			   int flags, const char *dev_name,
-			   void *data, struct vfsmount *mnt)
+			   void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super);
 }
 
 static int __init init_reiserfs_fs(void)
@@ -2253,7 +2252,7 @@
 struct file_system_type reiserfs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "reiserfs",
-	.get_sb = get_super_block,
+	.mount = get_super_block,
 	.kill_sb = reiserfs_kill_sb,
 	.fs_flags = FS_REQUIRES_DEV,
 };