[PATCH v2 2/3] powerpc/mm: allow memory hotplug into a memoryless node

[Balbir Singh]

On 15/09/16 06:06, Reza Arbab wrote:
> Remove the check which prevents us from hotplugging into an empty node.
> 
> This limitation has been questioned before [1], and judging by the
> response, there doesn't seem to be a reason we can't remove it. No issues
> have been found in light testing.
> 
> [1] http://lkml.kernel.org/r/CAGZKiBrmkSa1yyhbf5hwGxubcjsE5SmkSMY4tpANERMe2UG4bg@mail.gmail.com
>     http://lkml.kernel.org/r/20160511215051.GF22115@arbab-laptop.austin.ibm.com
> 
> Signed-off-by: Reza Arbab <arbab at linux.vnet.ibm.com>
> Acked-by: Balbir Singh <bsingharora at gmail.com>
> Cc: Nathan Fontenot <nfont at linux.vnet.ibm.com>
> Cc: Bharata B Rao <bharata at linux.vnet.ibm.com>
> ---
>  arch/powerpc/mm/numa.c | 13 +------------
>  1 file changed, 1 insertion(+), 12 deletions(-)
> 

I presume you've tested with CONFIG_NODES_SHIFT of 8 (255 nodes?)

Balbir Singh.