From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
David Rientjes <rientjes@google.com>,
Jiang Liu <jiang.liu@huawei.com>,
Tang Chen <tangchen@cn.fujitsu.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <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 07:58:42 -0400 [thread overview]
Message-ID: <CAHGf_=otK_LNgd6S09Fjjo0PfTSF3X0kj+=kGNyaTAze7m-b8w@mail.gmail.com> (raw)
In-Reply-To: <20130526090054.GE10651@dhcp22.suse.cz>
>> As KOSAKI Motohiro mentioned, memory hotplug don't support 32bit since
>> it was born,
>
> Why? any reference? This reasoning is really weak.
I have no seen any highmem support in memory hotplug code and I don't think this
patch fixes all 32bit highmem issue. If anybody are interesting to
support it, it is good thing. But in fact, _now_ it is broken when
enable HIGHMEM.
So, I just want to mark broken until someone want to support highmem
and verify overall.
And, yes, this patch is no good. Kconfig doesn't describe why disable
when highmem.
So,
depends on 64BIT || !HIGHMEM || BROKEN
maybe clear documentation more.
--
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next prev parent reply other threads:[~2013-05-26 11:59 UTC|newest]
Thread overview: 34+ 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 ` [PATCH v3 2/6] mm/memory_hotplug: remove memory_add_physaddr_to_nid Wanpeng Li
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 9:00 ` Michal Hocko
2013-05-26 9:06 ` Wanpeng Li
2013-05-26 18:12 ` Michal Hocko
2013-05-26 23:51 ` Wanpeng Li
2013-05-26 23:51 ` Wanpeng Li
2013-05-27 6:48 ` Michal Hocko
2013-05-27 7:00 ` Wanpeng Li
2013-05-27 7:00 ` Wanpeng Li
2013-05-26 9:06 ` Wanpeng Li
2013-05-26 11:58 ` KOSAKI Motohiro [this message]
2013-05-26 12:45 ` Hush Bensen
2013-05-26 13:06 ` KOSAKI Motohiro
2013-05-26 13:49 ` Hush Bensen
2013-05-26 18:09 ` Michal Hocko
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 ` [PATCH v3 5/6] mm/pageblock: remove get/set_pageblock_flags Wanpeng Li
2013-05-26 5:58 ` [PATCH v3 6/6] mm/hugetlb: remove hugetlb_prefault Wanpeng Li
2013-05-26 11:49 ` [PATCH v3 1/6] mm/memory-hotplug: fix lowmem count overflow when offline pages KOSAKI Motohiro
2013-05-27 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
2013-05-26 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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