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From: Andrew Morton <akpm@linux-foundation.org>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>,
	Hugh Dickins <hughd@google.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Andi Kleen <andi@firstfloor.org>, Hillf Danton <dhillf@gmail.com>,
	Michal Hocko <mhocko@suse.cz>, Rik van Riel <riel@redhat.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Wanpeng Li <liwanp@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org,
	Naoya Horiguchi <nao.horiguchi@gmail.com>
Subject: Re: [PATCH v5 0/9] extend hugepage migration
Date: Wed, 14 Aug 2013 16:40:52 -0700	[thread overview]
Message-ID: <20130814164052.2ccdd5bdf7ab56deeba88e68@linux-foundation.org> (raw)
In-Reply-To: <1376025702-14818-1-git-send-email-n-horiguchi@ah.jp.nec.com>

On Fri,  9 Aug 2013 01:21:33 -0400 Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> wrote:

> Here is the 5th version of hugepage migration patchset.
> Changes in this version are as follows:
>  - removed putback_active_hugepages() as a cleanup (1/9)
>  - added code to check movability of a given hugepage (8/9)
>  - set GFP MOVABLE flag depending on the movability of hugepage (9/9).
> 
> I feel that 8/9 and 9/9 contain some new things, so need reviews on them.
> 
> TODOs: (likely to be done after this work)
>  - split page table lock for pmd/pud based hugepage (maybe applicable to thp)
>  - improve alloc_migrate_target (especially in node choice)
>  - using page walker in check_range

This is a pretty large and complex patchset.  I skimmed the patches
(and have one trivial comment) then queued them up for a bit of
testing.  I've asked Mel if he can find time to review the changes
(please).

btw, it would be helpful if this [patch 0/n] had a decent overview of
the patch series - what are the objectives, how were they achieved,
what value they have to our users, testing results, etc.

mm-prepare-to-remove-proc-sys-vm-hugepages_treat_as_movable.patch had a
conflict with
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-move-up-the-code-which-check-availability-of-free-huge-page.patch
which I resolved in the obvious manner.  Please check that from a
runtime perspective.



  parent reply	other threads:[~2013-08-14 23:40 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-09  5:21 [PATCH v5 0/9] extend hugepage migration Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 1/9] migrate: make core migration code aware of hugepage Naoya Horiguchi
2013-09-10 13:51   ` Mel Gorman
2013-09-10 19:18     ` Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 2/9] soft-offline: use migrate_pages() instead of migrate_huge_page() Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 3/9] migrate: add hugepage migration code to migrate_pages() Naoya Horiguchi
2013-08-14 23:41   ` Andrew Morton
2013-08-15  1:15     ` Naoya Horiguchi
2013-09-10 14:33   ` Mel Gorman
2013-09-10 19:45     ` Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 4/9] migrate: add hugepage migration code to move_pages() Naoya Horiguchi
2013-09-28 17:26   ` Borislav Petkov
2013-09-30 15:01     ` Naoya Horiguchi
2013-09-30 16:04       ` Borislav Petkov
2013-09-30 16:08         ` Naoya Horiguchi
2013-11-12 11:56           ` Borislav Petkov
2013-11-14 15:47             ` [PATCH] mm/migrate.c: take returned value of isolate_huge_page()(Re: [PATCH 4/9] migrate: add hugepage migration code to move_pages()) Naoya Horiguchi
2013-11-14 23:11               ` David Rientjes
2013-11-15 15:03                 ` [PATCH] mm/migrate.c: take returned value ofisolate_huge_page()(Re: [PATCH 4/9] migrate: add hugepage migration code tomove_pages()) Naoya Horiguchi
2013-11-15 23:01                   ` David Rientjes
2013-08-09  5:21 ` [PATCH 5/9] mbind: add hugepage migration code to mbind() Naoya Horiguchi
2013-09-10 14:41   ` Mel Gorman
2013-09-10 21:53     ` Naoya Horiguchi
2013-09-10 22:47       ` Andi Kleen
2013-08-09  5:21 ` [PATCH 6/9] migrate: remove VM_HUGETLB from vma flag check in vma_migratable() Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 7/9] memory-hotplug: enable memory hotplug to handle hugepage Naoya Horiguchi
2013-08-09  5:21 ` [PATCH 8/9] migrate: check movability of hugepage in unmap_and_move_huge_page() Naoya Horiguchi
2013-08-11 17:51   ` Aneesh Kumar K.V
2013-08-09  5:21 ` [PATCH 9/9] prepare to remove /proc/sys/vm/hugepages_treat_as_movable Naoya Horiguchi
2013-08-11 17:43   ` Aneesh Kumar K.V
2013-08-12 18:10     ` Naoya Horiguchi
2013-09-10 14:48   ` Mel Gorman
2013-08-14 23:40 ` Andrew Morton [this message]
2013-08-15  6:23   ` [PATCH v5 0/9] extend hugepage migration Naoya Horiguchi
2013-08-15 19:39     ` Andrew Morton
2013-08-15 19:48       ` Naoya Horiguchi

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