static struct vfsmount *debugfs_automount(struct path *path)
{
	debugfs_automount_t f;
	f = (debugfs_automount_t)path->dentry->d_fsdata;
	return f(path->dentry, d_inode(path->dentry)->i_private);
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.