Re: [patch 1/2] x86: add numa=possible command line option

Américo Wang
2010-11-22T15:40:11Z

On Sun, Nov 21, 2010 at 01:46:07PM -0800, David Rientjes wrote:
>On Sun, 21 Nov 2010, Américo Wang wrote:
>> Also, numa=possible= is not as clear as numa=max=, for me at least.
>>
>
>I like name, but it requires that you know how many nodes that system
>already has. In other words, numa=possible=4 allows you to specify that 4
>additional nodes will be possible, but initially offline, for this or
>other purposes. numa=max=4 would be no-op if the system actually had 4
>nodes.
>
>I chose numa=possible over numa=additional because it is more clearly tied
>to node_possible_map, which is the only thing it modifies.

Okay, I thought "possible" means "max", but "possible" means "addtional" here.
It's clear for me now.

Thanks!