void __init vfs_caches_init_early(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(in_lookup_hashtable); i++)
		INIT_HLIST_BL_HEAD(&in_lookup_hashtable[i]);

	dcache_init_early();
	inode_init_early();
}

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.