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    Subject[PATCH v3 0/3] add crc64 calculation as kernel library
    Date
    This patch set adds basic implementation of crc64 calculation as Linux
    kernel library. Since bcache already does crc64 by itself, this patch
    set also modifies bcache code to use the new crc64 library routine.

    bcache uses crc64 as storage checksum, if a change of crc lib routines
    results an inconsistent result, the unmatched checksum may make bcache
    'think' the on-disk is corrupted, such change should be avoided or
    detected as early as possible. Therefore the last patch in this series
    adds a crc test framework, to check consistency of different calculations.

    Changelog:
    v3: Remove little endian restriction and remove 'le' from function names.
    Fixes all review comments of v2
    v2: Combine first two patches into one
    Fixes all review comments of v1
    v1: Initial version.

    Coly Li

    Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Michael Lyle <mlyle@lyle.org>
    Cc: Kent Overstreet <kent.overstreet@gmail.com>
    Cc: Kate Stewart <kstewart@linuxfoundation.org>
    ---
    Andy Shevchenko (1):
    lib/crc64: add crc64 option to lib/Kconfig

    Coly Li (3):
    lib: add crc64 calculation routines
    bcache: use routines from lib/crc64.c for CRC64 calculation
    lib/test_crc: Add test cases for crc calculation

    drivers/md/bcache/bcache.h | 7 +-
    drivers/md/bcache/btree.c | 2 +-
    drivers/md/bcache/request.c | 2 +-
    drivers/md/bcache/super.c | 5 +-
    drivers/md/bcache/util.c | 131 ----------------------------------
    drivers/md/bcache/util.h | 5 +-
    include/linux/crc64.h | 15 ++++
    lib/.gitignore | 2 +
    lib/Kconfig | 8 +++
    lib/Kconfig.debug | 11 +++
    lib/Makefile | 12 ++++
    lib/crc64.c | 71 +++++++++++++++++++
    lib/gen_crc64table.c | 76 ++++++++++++++++++++
    lib/test_crc.c | 136 ++++++++++++++++++++++++++++++++++++
    14 files changed, 341 insertions(+), 142 deletions(-)
    create mode 100644 include/linux/crc64.h
    create mode 100644 lib/crc64.c
    create mode 100644 lib/gen_crc64table.c
    create mode 100644 lib/test_crc.c

    --
    2.17.1

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