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SubjectRe: [patch v2 3/6] mm/memory_hotplug: Disable memory hotremove for 32bit
On Sun 26-05-13 13:58:38, Wanpeng Li wrote:
> As KOSAKI Motohiro mentioned, memory hotplug don't support 32bit since
> it was born,

Why? any reference? This reasoning is really weak.

> this patch disable memory hotremove when 32bit at compile
> time.
>
> Suggested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
> ---
> mm/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/mm/Kconfig b/mm/Kconfig
> index e742d06..ada9569 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -184,6 +184,7 @@ config MEMORY_HOTREMOVE
> bool "Allow for memory hot remove"
> select MEMORY_ISOLATION
> select HAVE_BOOTMEM_INFO_NODE if X86_64
> + depends on 64BIT
> depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
> depends on MIGRATION
>
> --
> 1.8.1.2
>

--
Michal Hocko
SUSE Labs


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