vfs: drop lock/unlock super

		spin_lock_init(&s->s_inode_lru_lock);

		INIT_LIST_HEAD(&s->s_mounts);

		init_rwsem(&s->s_umount);

		mutex_init(&s->s_lock);

		lockdep_set_class(&s->s_umount, &type->s_umount_key);

		/*

		 * The locking rules for s_lock are up to the

		 * filesystem. For example ext3fs has different

		 * lock ordering than usbfs:

		 */

		lockdep_set_class(&s->s_lock, &type->s_lock_key);

		/*

		 * sget() can have s_umount recursion.

		 *

	return false;

}

/*

 * Superblock locking.  We really ought to get rid of these two.

 */

void lock_super(struct super_block * sb)

{

	mutex_lock(&sb->s_lock);

}

void unlock_super(struct super_block * sb)

{

	mutex_unlock(&sb->s_lock);

}

EXPORT_SYMBOL(lock_super);

EXPORT_SYMBOL(unlock_super);

/**

 *	generic_shutdown_super	-	common helper for ->kill_sb()

 *	@sb: superblock to kill

	unsigned long		s_magic;

	struct dentry		*s_root;

	struct rw_semaphore	s_umount;

	struct mutex		s_lock;

	int			s_count;

	atomic_t		s_active;

#ifdef CONFIG_SECURITY