Re: [PATCH] docs/memory-hotplug: adjust the explanation of valid_zones sysfs

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On Thu, Jun 22, 2017 at 08:21:14PM +0200, Michal Hocko wrote:
>On Thu 22-06-17 12:18:44, Wei Yang wrote:
>[...]
>> -'valid_zones'     : read-only: designed to show which zones this memory block
>> -		    can be onlined to.
>> -		    The first column shows it's default zone.
>> +'valid_zones'     : read-only: shows different information based on state.
>> +		    When state is online, it is designed to show the
>> +		    zone name this memory block is onlined to.
>> +		    When state is offline, it is designed to show which zones
>> +		    this memory block can be onlined to.  The first column
>> +		    shows it's default zone.
>
>I do not think we really need to touch this. First of all the last
>sentence is not really correct. The ordering of zones doesn't tell which
>zone will be onlined by default. This is indeed a change of behavior of
>my patch. I am just not sure anybody depends on that. I can fix it up
>but again the old semantic was just awkward and I didn't feel like I
>should keep it. Also I plan to change this behavior again with planned
>patches. I would like to get rid of the non-overlapping zones
>restriction so the wording would have to change again.

Sure, look forward your up coming patches.

>
>That being said, let's keep the wording as it is now.
>
>Thanks!
>-- 
>Michal Hocko
>SUSE Labs

-- 
Wei Yang
Help you, Help me

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