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    Subject[PATCHv23 00/16] Contiguous Memory Allocator
    Hi,

    This is (yet another) quick update of CMA patches. I've rebased them
    onto next-20120222 tree from
    git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git and
    fixed the bug pointed by Aaro Koskinen.

    Best regards
    Marek Szyprowski
    Samsung Poland R&D Center

    Links to previous versions of the patchset:
    v22: <http://www.spinics.net/lists/linux-media/msg44370.html>
    v21: <http://www.spinics.net/lists/linux-media/msg44155.html>
    v20: <http://www.spinics.net/lists/linux-mm/msg29145.html>
    v19: <http://www.spinics.net/lists/linux-mm/msg29145.html>
    v18: <http://www.spinics.net/lists/linux-mm/msg28125.html>
    v17: <http://www.spinics.net/lists/arm-kernel/msg148499.html>
    v16: <http://www.spinics.net/lists/linux-mm/msg25066.html>
    v15: <http://www.spinics.net/lists/linux-mm/msg23365.html>
    v14: <http://www.spinics.net/lists/linux-media/msg36536.html>
    v13: (internal, intentionally not released)
    v12: <http://www.spinics.net/lists/linux-media/msg35674.html>
    v11: <http://www.spinics.net/lists/linux-mm/msg21868.html>
    v10: <http://www.spinics.net/lists/linux-mm/msg20761.html>
    v9: <http://article.gmane.org/gmane.linux.kernel.mm/60787>
    v8: <http://article.gmane.org/gmane.linux.kernel.mm/56855>
    v7: <http://article.gmane.org/gmane.linux.kernel.mm/55626>
    v6: <http://article.gmane.org/gmane.linux.kernel.mm/55626>
    v5: (intentionally left out as CMA v5 was identical to CMA v4)
    v4: <http://article.gmane.org/gmane.linux.kernel.mm/52010>
    v3: <http://article.gmane.org/gmane.linux.kernel.mm/51573>
    v2: <http://article.gmane.org/gmane.linux.kernel.mm/50986>
    v1: <http://article.gmane.org/gmane.linux.kernel.mm/50669>


    Changelog:

    v23:
    1. fixed bug spotted by Aaro Koskinen (incorrect check inside VM_BUG_ON)

    2. rebased onto next-20120222 tree from
    git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

    v22:
    1. Fixed compilation break caused by missing fixup patch in v21

    2. Fixed typos in the comments

    3. Removed superfluous #include entries

    v21:
    1. Fixed incorrect check which broke memory compaction code

    2. Fixed hacky and racy min_free_kbytes handling

    3. Added serialization patch to watermark calculation

    4. Fixed typos here and there in the comments

    v20 and earlier - see previous patchsets.


    Patches in this patchset:

    Marek Szyprowski (6):
    mm: extract reclaim code from __alloc_pages_direct_reclaim()
    mm: trigger page reclaim in alloc_contig_range() to stabilise
    watermarks
    drivers: add Contiguous Memory Allocator
    X86: integrate CMA with DMA-mapping subsystem
    ARM: integrate CMA with DMA-mapping subsystem
    ARM: Samsung: use CMA for 2 memory banks for s5p-mfc device

    Mel Gorman (1):
    mm: Serialize access to min_free_kbytes

    Michal Nazarewicz (9):
    mm: page_alloc: remove trailing whitespace
    mm: compaction: introduce isolate_migratepages_range()
    mm: compaction: introduce map_pages()
    mm: compaction: introduce isolate_freepages_range()
    mm: compaction: export some of the functions
    mm: page_alloc: introduce alloc_contig_range()
    mm: page_alloc: change fallbacks array handling
    mm: mmzone: MIGRATE_CMA migration type added
    mm: page_isolation: MIGRATE_CMA isolation functions added

    Documentation/kernel-parameters.txt | 9 +
    arch/Kconfig | 3 +
    arch/arm/Kconfig | 2 +
    arch/arm/include/asm/dma-contiguous.h | 15 ++
    arch/arm/include/asm/mach/map.h | 1 +
    arch/arm/kernel/setup.c | 9 +-
    arch/arm/mm/dma-mapping.c | 369 ++++++++++++++++++++++++------
    arch/arm/mm/init.c | 23 ++-
    arch/arm/mm/mm.h | 3 +
    arch/arm/mm/mmu.c | 31 ++-
    arch/arm/plat-s5p/dev-mfc.c | 51 +----
    arch/x86/Kconfig | 1 +
    arch/x86/include/asm/dma-contiguous.h | 13 +
    arch/x86/include/asm/dma-mapping.h | 4 +
    arch/x86/kernel/pci-dma.c | 18 ++-
    arch/x86/kernel/pci-nommu.c | 8 +-
    arch/x86/kernel/setup.c | 2 +
    drivers/base/Kconfig | 89 +++++++
    drivers/base/Makefile | 1 +
    drivers/base/dma-contiguous.c | 401 +++++++++++++++++++++++++++++++
    include/asm-generic/dma-contiguous.h | 28 +++
    include/linux/device.h | 4 +
    include/linux/dma-contiguous.h | 110 +++++++++
    include/linux/gfp.h | 12 +
    include/linux/mmzone.h | 47 +++-
    include/linux/page-isolation.h | 18 +-
    mm/Kconfig | 2 +-
    mm/Makefile | 3 +-
    mm/compaction.c | 418 +++++++++++++++++++++------------
    mm/internal.h | 33 +++
    mm/memory-failure.c | 2 +-
    mm/memory_hotplug.c | 6 +-
    mm/page_alloc.c | 409 ++++++++++++++++++++++++++++----
    mm/page_isolation.c | 15 +-
    mm/vmstat.c | 3 +
    35 files changed, 1790 insertions(+), 373 deletions(-)
    create mode 100644 arch/arm/include/asm/dma-contiguous.h
    create mode 100644 arch/x86/include/asm/dma-contiguous.h
    create mode 100644 drivers/base/dma-contiguous.c
    create mode 100644 include/asm-generic/dma-contiguous.h
    create mode 100644 include/linux/dma-contiguous.h

    --
    1.7.1.569.g6f426



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