[Devel] Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children

[Glauber Costa]

On 08/10/2012 09:51 PM, Kamezawa Hiroyuki wrote:
>> +		/*
>> +		 * Once enabled, can't be disabled. We could in theory disable
>> +		 * it if we haven't yet created any caches, or if we can shrink
>> +		 * them all to death. But it is not worth the trouble
>> +		 */
>>   		static_key_slow_inc(&memcg_kmem_enabled_key);
>> -		memcg->kmem_accounted = true;
>> +
>> +		if (!memcg->use_hierarchy)
>> +			goto out;
>> +
>> +		for_each_mem_cgroup_tree(iter, memcg) {
>> +			if (iter == memcg)
>> +				continue;
>> +			memcg_kmem_account_parent(iter);
>> +		}
> 
> Could you add an explanation comment ?
> 

Of course, Kame.
Thanks