[U-Boot] [PATCH v1 0/3] fs: btrfs: Add zstd decompression support

[Marek Behún]

Hi,

zstd has been enabled in kernel btrfs driver for over a year, it is time
we support this also in U-Boot.

This xxhash and zstd library are imported from kernel with minimal changes.

This was tested on ARM target (Turris Omnia).

Marek

Marek Behún (3):
  lib: Add xxhash support
  lib: add Zstandard decompression support
  fs: btrfs: add zstd decompression support

 fs/btrfs/Kconfig          |    1 +
 fs/btrfs/btrfs_tree.h     |    5 +-
 fs/btrfs/compression.c    |   59 +
 include/linux/xxhash.h    |  259 ++++
 include/linux/zstd.h      | 1157 +++++++++++++++++
 lib/Kconfig               |   15 +
 lib/Makefile              |    2 +
 lib/xxhash.c              |  497 ++++++++
 lib/zstd/Makefile         |    4 +
 lib/zstd/bitstream.h      |  374 ++++++
 lib/zstd/decompress.c     | 2525 +++++++++++++++++++++++++++++++++++++
 lib/zstd/entropy_common.c |  243 ++++
 lib/zstd/error_private.h  |   53 +
 lib/zstd/fse.h            |  575 +++++++++
 lib/zstd/fse_decompress.c |  332 +++++
 lib/zstd/huf.h            |  212 ++++
 lib/zstd/huf_decompress.c |  960 ++++++++++++++
 lib/zstd/mem.h            |  152 +++
 lib/zstd/zstd_common.c    |   75 ++
 lib/zstd/zstd_internal.h  |  263 ++++
 lib/zstd/zstd_opt.h       | 1014 +++++++++++++++
 21 files changed, 8775 insertions(+), 2 deletions(-)
 create mode 100644 include/linux/xxhash.h
 create mode 100644 include/linux/zstd.h
 create mode 100644 lib/xxhash.c
 create mode 100644 lib/zstd/Makefile
 create mode 100644 lib/zstd/bitstream.h
 create mode 100644 lib/zstd/decompress.c
 create mode 100644 lib/zstd/entropy_common.c
 create mode 100644 lib/zstd/error_private.h
 create mode 100644 lib/zstd/fse.h
 create mode 100644 lib/zstd/fse_decompress.c
 create mode 100644 lib/zstd/huf.h
 create mode 100644 lib/zstd/huf_decompress.c
 create mode 100644 lib/zstd/mem.h
 create mode 100644 lib/zstd/zstd_common.c
 create mode 100644 lib/zstd/zstd_internal.h
 create mode 100644 lib/zstd/zstd_opt.h

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2.21.0