[PATCH 0/3] btrfs: Add zstd support to btrfs

[Nick Terrell]

Hi all,

This patch set imports the upstream kernel zstd library, patches it to work
in grub, adds zstd support to the btrfs module, and adds a test case. I've
separated the importing and patching of the upstream kernel zstd library
for ease of review.

Thanks to David Sterba for starting this project! I started my patch from
where he left off.

Best,
Nick Terrell

Nick Terrell (3):
  Import kernel zstd
  Patch the kernel zstd
  Add btrfs zstd support

 Makefile.util.def                   |    8 +-
 grub-core/Makefile.core.def         |   10 +-
 grub-core/fs/btrfs.c                |   85 +-
 grub-core/lib/zstd/bitstream.h      |  380 ++++++
 grub-core/lib/zstd/decompress.c     | 2494 +++++++++++++++++++++++++++++++++++
 grub-core/lib/zstd/entropy_common.c |  243 ++++
 grub-core/lib/zstd/error_private.h  |   52 +
 grub-core/lib/zstd/fse.h            |  575 ++++++++
 grub-core/lib/zstd/fse_decompress.c |  329 +++++
 grub-core/lib/zstd/huf.h            |  212 +++
 grub-core/lib/zstd/huf_decompress.c |  957 ++++++++++++++
 grub-core/lib/zstd/kerncompat.h     |   69 +
 grub-core/lib/zstd/mem.h            |  155 +++
 grub-core/lib/zstd/xxhash.c         |  482 +++++++
 grub-core/lib/zstd/xxhash.h         |  236 ++++
 grub-core/lib/zstd/zstd.h           | 1157 ++++++++++++++++
 grub-core/lib/zstd/zstd_common.c    |   75 ++
 grub-core/lib/zstd/zstd_internal.h  |  265 ++++
 tests/btrfs_test.in                 |    1 +
 tests/util/grub-fs-tester.in        |    4 +-
 20 files changed, 7783 insertions(+), 6 deletions(-)
 create mode 100644 grub-core/lib/zstd/bitstream.h
 create mode 100644 grub-core/lib/zstd/decompress.c
 create mode 100644 grub-core/lib/zstd/entropy_common.c
 create mode 100644 grub-core/lib/zstd/error_private.h
 create mode 100644 grub-core/lib/zstd/fse.h
 create mode 100644 grub-core/lib/zstd/fse_decompress.c
 create mode 100644 grub-core/lib/zstd/huf.h
 create mode 100644 grub-core/lib/zstd/huf_decompress.c
 create mode 100644 grub-core/lib/zstd/kerncompat.h
 create mode 100644 grub-core/lib/zstd/mem.h
 create mode 100644 grub-core/lib/zstd/xxhash.c
 create mode 100644 grub-core/lib/zstd/xxhash.h
 create mode 100644 grub-core/lib/zstd/zstd.h
 create mode 100644 grub-core/lib/zstd/zstd_common.c
 create mode 100644 grub-core/lib/zstd/zstd_internal.h

--
2.16.2