[LTP] [PATCH v9 1/2] cpuset02: Convert the test6 from cpuset_memory_testset.sh to C code

[Petr Vorel]

Hi Wei, Li, Cyril,

...
> +static void setup(void)
> +{
> +	node = tst_get_nodemap(TST_NUMA_MEM, getpagesize() / 1024);
> +	if (node->cnt <= 1)
> +		tst_brk(TCONF, "test requires at least 2 NUMA memory nodes");
Naive question: why test requires 2 memory nodes? Wouldn't be 1 enough?

Kind regards,
Petr

> +
> +	check_node_id = node->map[node->cnt - 1];
> +
> +	hpage_size = SAFE_READ_MEMINFO(MEMINFO_HPAGE_SIZE)*1024;
> +
> +	char path[256];
> +	unsigned int i;
> +	unsigned int nr_hugepages;
> +
> +	for (i = 0; i < node->cnt; i++) {
> +		unsigned int current_node_id = node->map[i];
> +
> +		sprintf(path,
> +			"/sys/devices/system/node/node%d/hugepages/hugepages-%ldkB/nr_hugepages",
> +			current_node_id, hpage_size / 1024);
> +		FILE_PRINTF(path, "%d", 1);
> +		SAFE_FILE_SCANF(path, "%d", &nr_hugepages);
> +		if (nr_hugepages != 1)
> +			tst_brk(TCONF, "reserve 1 huge page on node%d failed", current_node_id);
> +	}
> +}