From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
David Rientjes <rientjes@google.com>,
Jiang Liu <jiang.liu@huawei.com>,
Tang Chen <tangchen@cn.fujitsu.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org
Subject: Re: [patch v2 3/6] mm/memory_hotplug: Disable memory hotremove for 32bit
Date: Sun, 26 May 2013 17:06:17 +0800 [thread overview]
Message-ID: <20130526090617.GA28604@hacker.(null)> (raw)
In-Reply-To: <20130526090054.GE10651@dhcp22.suse.cz>
On Sun, May 26, 2013 at 11:00:54AM +0200, Michal Hocko wrote:
>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.
>
http://marc.info/?l=linux-mm&m=136953099010171&w=2
>> 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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next prev parent reply other threads:[~2013-05-26 9:06 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-26 5:58 [PATCH v3 1/6] mm/memory-hotplug: fix lowmem count overflow when offline pages Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 5:58 ` [PATCH v3 2/6] mm/memory_hotplug: remove memory_add_physaddr_to_nid Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 8:59 ` Michal Hocko
2013-05-26 8:59 ` Michal Hocko
2013-05-26 9:03 ` Wanpeng Li
2013-05-26 9:03 ` Wanpeng Li
2013-05-26 5:58 ` [patch v2 3/6] mm/memory_hotplug: Disable memory hotremove for 32bit Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 9:00 ` Michal Hocko
2013-05-26 9:00 ` Michal Hocko
2013-05-26 9:06 ` Wanpeng Li [this message]
2013-05-26 18:12 ` Michal Hocko
2013-05-26 18:12 ` Michal Hocko
2013-05-26 23:51 ` Wanpeng Li
2013-05-27 6:48 ` Michal Hocko
2013-05-27 6:48 ` Michal Hocko
2013-05-27 7:00 ` Wanpeng Li
2013-05-27 7:00 ` Wanpeng Li
2013-05-26 23:51 ` Wanpeng Li
2013-05-26 9:06 ` Wanpeng Li
2013-05-26 11:58 ` KOSAKI Motohiro
2013-05-26 11:58 ` KOSAKI Motohiro
2013-05-26 12:45 ` Hush Bensen
2013-05-26 12:45 ` Hush Bensen
2013-05-26 13:06 ` KOSAKI Motohiro
2013-05-26 13:06 ` KOSAKI Motohiro
2013-05-26 13:49 ` Hush Bensen
2013-05-26 13:49 ` Hush Bensen
2013-05-26 18:09 ` Michal Hocko
2013-05-26 18:09 ` Michal Hocko
2013-05-26 22:02 ` KOSAKI Motohiro
2013-05-26 22:02 ` KOSAKI Motohiro
2013-05-26 5:58 ` [PATCH v3 4/6] mm/hugetlb: use already exist interface huge_page_shift Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 5:58 ` [PATCH v3 5/6] mm/pageblock: remove get/set_pageblock_flags Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 5:58 ` [PATCH v3 6/6] mm/hugetlb: remove hugetlb_prefault Wanpeng Li
2013-05-26 5:58 ` Wanpeng Li
2013-05-26 11:49 ` [PATCH v3 1/6] mm/memory-hotplug: fix lowmem count overflow when offline pages KOSAKI Motohiro
2013-05-26 11:49 ` KOSAKI Motohiro
2013-05-27 0:02 ` Wanpeng Li
2013-05-27 0:02 ` Wanpeng Li
[not found] ` <51a2a2ab.a2f6420a.33bb.ffffda23SMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-27 6:42 ` KOSAKI Motohiro
2013-05-27 6:42 ` KOSAKI Motohiro
2013-05-26 14:26 ` Liu Jiang
2013-05-26 14:26 ` Liu Jiang
2013-05-26 23:44 ` Wanpeng Li
2013-05-26 23:44 ` Wanpeng Li
2013-05-28 3:37 ` Ben Hutchings
2013-05-28 7:16 ` Wanpeng Li
2013-05-28 7:16 ` Wanpeng Li
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