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SubjectRe: [PATCH v1 10/10] mm/memory_hotplug: allow online/offline memory by a kernel module
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On 23.05.2018 21:51, Christoph Hellwig wrote:
> On Wed, May 23, 2018 at 05:11:51PM +0200, David Hildenbrand wrote:
>> Kernel modules that want to control how/when memory is onlined/offlined
>> need a proper interface to these functions. Also, for adding memory
>> properly, memory_block_size_bytes is required.
>
> Which module? Please send it along with the enabling code.

Hi,

as indicated in the cover letter, it is called "virtio-mem".
I sent it yesterday as a separate series (RFC).

Cover letter: https://lkml.org/lkml/2018/5/23/800
Relevant patch: https://lkml.org/lkml/2018/5/23/803

>
>> --- a/drivers/base/memory.c
>> +++ b/drivers/base/memory.c
>> @@ -88,6 +88,7 @@ unsigned long __weak memory_block_size_bytes(void)
>> {
>> return MIN_MEMORY_BLOCK_SIZE;
>> }
>> +EXPORT_SYMBOL(memory_block_size_bytes);
>
>> +EXPORT_SYMBOL(mem_hotplug_begin);
>
>> +EXPORT_SYMBOL(mem_hotplug_done);
>
> EXPORT_SYMBOL_GPL for any deep down VM internals, please.
>

I continued using what was being used for symbols in this file. If there
are not other opinions, I'll switch to EXPORT_SYMBOL_GPL. Thanks!

--

Thanks,

David / dhildenb

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