From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Hugh Dickins <hughd@google.com>,
Andi Kleen <andi@firstfloor.org>, Hillf Danton <dhillf@gmail.com>,
Michal Hocko <mhocko@suse.cz>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 09/10] memory-hotplug: enable memory hotplug to handle hugepage
Date: Tue, 09 Apr 2013 22:24:58 -0400 [thread overview]
Message-ID: <1365560698-qyvvld1y-mutt-n-horiguchi@ah.jp.nec.com> (raw)
In-Reply-To: <CAHGf_=oL7dORGCJZtLxrwc9cGgrakAsfAOJ4xx659nDmQd=rcw@mail.gmail.com>
On Tue, Apr 09, 2013 at 09:56:58PM -0400, KOSAKI Motohiro wrote:
> On Tue, Apr 9, 2013 at 6:43 PM, Naoya Horiguchi
...
> > MIGRATE_ISOLTE is changed only within the range [start_pfn, end_pfn)
> > given as the argument of __offline_pages (see also start_isolate_page_range),
> > so it's set only for pages within the single memblock to be offlined.
>
> When partial memory hot remove, that's correct behavior. different
> node is not required.
>
> > BTW, in previous discussion I already agreed with checking migrate type
> > in hugepage allocation code (maybe it will be in dequeue_huge_page_vma(),)
> > so what you concern should be solved in the next post.
>
> Umm.. Maybe I missed such discussion. Do you have a pointer?
Please see the bottom of the following:
http://thread.gmane.org/gmane.linux.kernel.mm/96665/focus=96920
It's not exactly the same, but we need to prevent the allocation
from the memblock under hotremoving not only to be efficient,
but also to avoid the race.
Thanks,
Naoya
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next prev parent reply other threads:[~2013-04-10 2:25 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 20:23 [PATCH v2 0/10] extend hugepage migration Naoya Horiguchi
2013-03-22 20:23 ` [PATCH 01/10] migrate: add migrate_entry_wait_huge() Naoya Horiguchi
2013-03-23 15:55 ` Rik van Riel
2013-03-25 10:13 ` Michal Hocko
2013-03-26 4:25 ` Naoya Horiguchi
2013-04-05 20:33 ` KOSAKI Motohiro
2013-04-08 20:00 ` Naoya Horiguchi
2013-04-05 20:33 ` KOSAKI Motohiro
2013-03-22 20:23 ` [PATCH 02/10] migrate: make core migration code aware of hugepage Naoya Horiguchi
2013-03-25 10:57 ` Michal Hocko
2013-03-26 4:33 ` Naoya Horiguchi
2013-03-26 8:49 ` Michal Hocko
2013-04-05 20:41 ` KOSAKI Motohiro
2013-03-22 20:23 ` [PATCH 03/10] soft-offline: use migrate_pages() instead of migrate_huge_page() Naoya Horiguchi
2013-03-25 12:31 ` Michal Hocko
2013-03-26 4:34 ` Naoya Horiguchi
2013-03-26 9:49 ` Michal Hocko
2013-03-26 20:35 ` Naoya Horiguchi
2013-03-27 13:00 ` Michal Hocko
2013-04-05 21:11 ` KOSAKI Motohiro
2013-03-26 11:29 ` Aneesh Kumar K.V
2013-03-27 13:52 ` Michal Hocko
2013-03-27 19:19 ` Naoya Horiguchi
2013-03-28 8:53 ` Michal Hocko
2013-03-29 5:26 ` Aneesh Kumar K.V
2013-03-29 9:36 ` Michal Hocko
2013-04-01 5:13 ` Aneesh Kumar K.V
2013-04-02 9:45 ` Michal Hocko
2013-03-22 20:23 ` [PATCH 04/10] migrate: clean up migrate_huge_page() Naoya Horiguchi
2013-04-05 21:13 ` KOSAKI Motohiro
2013-03-22 20:23 ` [PATCH 05/10] migrate: add hugepage migration code to migrate_pages() Naoya Horiguchi
2013-03-25 13:04 ` Michal Hocko
2013-03-26 5:13 ` Naoya Horiguchi
2013-03-26 8:55 ` Michal Hocko
2013-04-05 21:17 ` KOSAKI Motohiro
2013-04-08 20:21 ` Naoya Horiguchi
2013-03-22 20:23 ` [PATCH 06/10] migrate: add hugepage migration code to move_pages() Naoya Horiguchi
2013-03-25 13:36 ` Michal Hocko
2013-03-26 7:06 ` Naoya Horiguchi
2013-03-26 10:02 ` Michal Hocko
2013-03-26 20:37 ` Naoya Horiguchi
2013-03-22 20:23 ` [PATCH 07/10] mbind: add hugepage migration code to mbind() Naoya Horiguchi
2013-03-25 13:49 ` Michal Hocko
2013-04-05 22:23 ` KOSAKI Motohiro
2013-04-06 7:04 ` Michal Hocko
2013-04-05 22:18 ` KOSAKI Motohiro
2013-04-08 20:25 ` Naoya Horiguchi
2013-03-22 20:23 ` [PATCH 08/10] migrate: remove VM_HUGETLB from vma flag check in vma_migratable() Naoya Horiguchi
2013-03-22 20:23 ` [PATCH 09/10] memory-hotplug: enable memory hotplug to handle hugepage Naoya Horiguchi
2013-03-25 15:09 ` Michal Hocko
2013-03-26 18:23 ` Naoya Horiguchi
2013-03-27 14:19 ` Michal Hocko
2013-03-27 21:29 ` Naoya Horiguchi
2013-03-27 21:58 ` Naoya Horiguchi
2013-03-27 22:55 ` Michal Hocko
2013-03-26 12:01 ` Aneesh Kumar K.V
2013-03-27 19:28 ` Naoya Horiguchi
2013-04-06 0:13 ` KOSAKI Motohiro
2013-04-09 20:07 ` Naoya Horiguchi
2013-04-09 21:27 ` KOSAKI Motohiro
2013-04-09 22:43 ` Naoya Horiguchi
2013-04-10 1:56 ` KOSAKI Motohiro
2013-04-10 2:24 ` Naoya Horiguchi [this message]
2013-03-22 20:23 ` [PATCH 10/10] prepare to remove /proc/sys/vm/hugepages_treat_as_movable Naoya Horiguchi
2013-03-25 15:12 ` Michal Hocko
2013-04-06 0:15 ` KOSAKI Motohiro
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