Re: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc
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From: Aneesh Kumar K.V <hidden>
Date: 2016-09-26 15:48:55
Also in:
linux-devicetree, linux-mm, lkml
Reza Arbab [off-list ref] 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 <redacted>
quoted hunk ↗ jump to hunk
Signed-off-by: Reza Arbab <redacted> --- 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