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    Subject[PATCH 0 of 3] Block Layer Data Integrity
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    These patches allow data integrity information (checksum and more) to
    be attached to I/Os at the block/filesystem layers and transferred
    through the entire I/O stack all the way to the physical storage
    device.

    The integrity metadata can be generated in close proximity to the
    original data. Capable host adapters, RAID arrays and physical disks
    can verify the data integrity and abort I/Os in case of a mismatch.

    Changes:

    - Fix sector calculation for DIF Type 3 devices

    - Use DIV_ROUND_UP()

    - Create bio_integrity_mark_{head,tail} helpers and use them when
    adjusting integrity vectors

    - Consolidate bio_integrity_{set,get} tag

    - sysfs ABI doc

    15 files changed, 1732 insertions(+), 31 deletions(-)
    Documentation/ABI/testing/sysfs-block | 34 +
    Documentation/block/data-integrity.txt | 327 ++++++++++++++
    block/Kconfig | 12
    block/Makefile | 1
    block/blk-core.c | 7
    block/blk-integrity.c | 385 +++++++++++++++++
    block/blk-merge.c | 3
    block/blk.h | 8
    block/elevator.c | 6
    fs/Makefile | 1
    fs/bio-integrity.c | 700 ++++++++++++++++++++++++++++++++
    fs/bio.c | 62 +-
    include/linux/bio.h | 115 +++++
    include/linux/blkdev.h | 99 ++++
    include/linux/genhd.h | 3




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