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SubjectRe: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc
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Reza Arbab <arbab@linux.vnet.ibm.com> writes:

> To create a movable node, we need to hotplug all of its memory into
> ZONE_MOVABLE.
>
> Note that to do this, auto_online_blocks should be off. Since the memory
> will first be added to the default zone, we must explicitly use
> online_movable to online.
>
> Because such a node contains no normal memory, can_online_high_movable()
> will only allow us to do the onlining if CONFIG_MOVABLE_NODE is set.
> Enable the use of this config option on PPC64 platforms.
>

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

> Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
> ---
> Documentation/kernel-parameters.txt | 2 +-
> mm/Kconfig | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index a4f4d69..3d8460d 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -2344,7 +2344,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
> that the amount of memory usable for all allocations
> is not too small.
>
> - movable_node [KNL,X86] Boot-time switch to enable the effects
> + movable_node [KNL,X86,PPC] Boot-time switch to enable the effects
> of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details.
>
> MTD_Partition= [MTD]
> diff --git a/mm/Kconfig b/mm/Kconfig
> index be0ee11..4b19cd3 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -153,7 +153,7 @@ config MOVABLE_NODE
> bool "Enable to assign a node which has only movable memory"
> depends on HAVE_MEMBLOCK
> depends on NO_BOOTMEM
> - depends on X86_64
> + depends on X86_64 || PPC64
> depends on NUMA
> default n
> help
> --
> 1.8.3.1

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