On Fri, Aug 17, 2018 at 10:18:53AM +0200, Oscar Salvador wrote:
>> failed_addition:
>> +#ifdef CONFIG_DEBUG_VM
>> pr_debug("online_pages [mem %#010llx-%#010llx] failed\n",
>> (unsigned long long) pfn << PAGE_SHIFT,
>> (((unsigned long long) pfn + nr_pages) << PAGE_SHIFT) - 1);
>> +#endif
>
>I have never been sure about this.
>IMO, if I fail to online pages, I want to know I failed.
>I think that pr_err would be better than pr_debug and without CONFIG_DEBUG_VM.
>
>But at least, if not, envolve it with a CONFIG_DEBUG_VM, but change pr_debug
>to pr_info.
>
I don't have a clear rule about these debug macro neither.
While when you look at the page related logs in calculate_node_totalpages(),
it is KERNEL_DEBUG level and without any config macro.
Maybe we should leave them at the same state?
>> +#ifdef CONFIG_DEBUG_VM
>> pr_debug("memory offlining [mem %#010llx-%#010llx] failed\n",
>> (unsigned long long) start_pfn << PAGE_SHIFT,
>> ((unsigned long long) end_pfn << PAGE_SHIFT) - 1);
>> +#endif
>
>Same goes here.
>
>Thanks
>--
>Oscar Salvador
>SUSE L3
--
Wei Yang
Help you, Help me
