linux-kernel - [PATCH v5 0/9] extend hugepage migration

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Date:	Fri,  9 Aug 2013 01:21:33 -0400
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Cc:	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andi Kleen <andi@...stfloor.org>,
	Hillf Danton <dhillf@...il.com>, Michal Hocko <mhocko@...e.cz>,
	Rik van Riel <riel@...hat.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org,
	Naoya Horiguchi <nao.horiguchi@...il.com>
Subject: [PATCH v5 0/9] extend hugepage migration

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

Thanks,
Naoya Horiguchi
---
GitHub:
  git://github.com/Naoya-Horiguchi/linux.git extend_hugepage_migration.v5

Test code:
  git://github.com/Naoya-Horiguchi/test_hugepage_migration_extension.git

Naoya Horiguchi (9):
      migrate: make core migration code aware of hugepage
      soft-offline: use migrate_pages() instead of migrate_huge_page()
      migrate: add hugepage migration code to migrate_pages()
      migrate: add hugepage migration code to move_pages()
      mbind: add hugepage migration code to mbind()
      migrate: remove VM_HUGETLB from vma flag check in vma_migratable()
      memory-hotplug: enable memory hotplug to handle hugepage
      migrate: check movability of hugepage in unmap_and_move_huge_page()
      prepare to remove /proc/sys/vm/hugepages_treat_as_movable

 Documentation/sysctl/vm.txt   |  13 +---
 arch/arm/mm/hugetlbpage.c     |   5 ++
 arch/arm64/mm/hugetlbpage.c   |   5 ++
 arch/ia64/mm/hugetlbpage.c    |   5 ++
 arch/metag/mm/hugetlbpage.c   |   5 ++
 arch/mips/mm/hugetlbpage.c    |   5 ++
 arch/powerpc/mm/hugetlbpage.c |  10 ++++
 arch/s390/mm/hugetlbpage.c    |   5 ++
 arch/sh/mm/hugetlbpage.c      |   5 ++
 arch/sparc/mm/hugetlbpage.c   |   5 ++
 arch/tile/mm/hugetlbpage.c    |   5 ++
 arch/x86/mm/hugetlbpage.c     |   8 +++
 include/linux/hugetlb.h       |  25 ++++++++
 include/linux/mempolicy.h     |   2 +-
 include/linux/migrate.h       |   5 --
 mm/hugetlb.c                  | 134 +++++++++++++++++++++++++++++++++++++-----
 mm/memory-failure.c           |  15 ++++-
 mm/memory.c                   |  17 +++++-
 mm/memory_hotplug.c           |  42 ++++++++++---
 mm/mempolicy.c                |  46 +++++++++++++--
 mm/migrate.c                  |  61 ++++++++++---------
 mm/page_alloc.c               |  12 ++++
 mm/page_isolation.c           |  14 +++++
 23 files changed, 371 insertions(+), 78 deletions(-)
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