--- x/fs/kernfs/mount.c
+++ y/fs/kernfs/mount.c
@@ -303,9 +303,7 @@ static int kernfs_fill_super(struct supe
 	sb->s_shrink->seeks = 0;
 
 	/* get root inode, initialize and unlock it */
-	down_read(&kf_root->kernfs_rwsem);
 	inode = kernfs_get_inode(sb, info->root->kn);
-	up_read(&kf_root->kernfs_rwsem);
 	if (!inode) {
 		pr_debug("kernfs: could not get root inode\n");
 		return -ENOMEM;