Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1161923 > unrolled thread

Re: [RFC PATCH 01/12] mm: add a new config to manage the code

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [RFC PATCH 01/12] mm: add a new config to manage the code Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> - 2015-06-10 05:10 +0200

#1161923 — Re: [RFC PATCH 01/12] mm: add a new config to manage the code

On 2015/06/09 19:10, Xishi Qiu wrote:
> On 2015/6/9 14:44, Kamezawa Hiroyuki wrote:
>
>> On 2015/06/04 21:56, Xishi Qiu wrote:
>>> This patch introduces a new config called "CONFIG_ACPI_MIRROR_MEMORY", it is
>>> used to on/off the feature.
>>>
>>> Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
>>> ---
>>>    mm/Kconfig | 8 ++++++++
>>>    1 file changed, 8 insertions(+)
>>>
>>> diff --git a/mm/Kconfig b/mm/Kconfig
>>> index 390214d..4f2a726 100644
>>> --- a/mm/Kconfig
>>> +++ b/mm/Kconfig
>>> @@ -200,6 +200,14 @@ config MEMORY_HOTREMOVE
>>>        depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
>>>        depends on MIGRATION
>>>
>>> +config MEMORY_MIRROR
>>> +    bool "Address range mirroring support"
>>> +    depends on X86 && NUMA
>>> +    default y
>>> +    help
>>> +      This feature depends on hardware and firmware support.
>>> +      ACPI or EFI records the mirror info.
>>
>> default y...no runtime influence when the user doesn't use memory mirror ?
>>
>
> It is a new feature, so how about like this: default y -> n?
>

It's okay to me. But it's better to check performance impact before merge
because you modified core code of memory management.

Thanks,
-Kame
  


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web