[RFC PATCH 0/8] staging: apfs: init APFS module

Ethan Carter Edwards
2025-03-14T21:58:31Z

Hello everyone,

This is a follow up patchset to the driver I sent an email about a few
weeks ago [0]. I understand this patchset will probably get rejected,
but I wanted to report on what I have done thus far. I have got the
upstream module imported and building, and it passes some basic tests
so far (I have not tried getting XFS/FStests running yet).

Like mentioned earlier, some of the files have been moved to folios, but
a large majority of them still use bufferheads. I would like to have
them completely removed before moved from staging/ into fs/.

I have split everything up into separate commits as best as I could.
Most of the C files rely in functions from other C files, so I included
them all in one patch/commit.

I am curious to hear everyone's thoughts on this and to start getting
the ball rolling for the code-review process. Please feel free to
include/CC anyone who may be interested in this driver/the review
process. I have included a few people, but have certainly missed others.

[0]: https://lore.kernel.org/lkml/20250307165054.GA9774@eaf/

Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>
---
Ethan Carter Edwards (8):
staging: apfs: init lzfse compression library for APFS
staging: apfs: init unicode.{c,h}
staging: apfs: init apfs_raw.h to handle on-disk structures
staging: apfs: init libzbitmap.{c,h} for decompression
staging: apfs: init APFS
staging: apfs: init build support for APFS
staging: apfs: init TODO and README.rst
MAINTAINERS: apfs: add entry and relevant information

MAINTAINERS | 6 +
drivers/staging/Kconfig | 2 +
drivers/staging/apfs/Kconfig | 13 +
drivers/staging/apfs/Makefile | 10 +
drivers/staging/apfs/README.rst | 87 +
drivers/staging/apfs/TODO | 7 +
drivers/staging/apfs/apfs.h | 1193 ++++++++
drivers/staging/apfs/apfs_raw.h | 1567 +++++++++++
drivers/staging/apfs/btree.c | 1174 ++++++++
drivers/staging/apfs/compress.c | 442 +++
drivers/staging/apfs/dir.c | 1440 ++++++++++
drivers/staging/apfs/extents.c | 2371 ++++++++++++++++
drivers/staging/apfs/file.c | 164 ++
drivers/staging/apfs/inode.c | 2235 +++++++++++++++
drivers/staging/apfs/key.c | 337 +++
drivers/staging/apfs/libzbitmap.c | 442 +++
drivers/staging/apfs/libzbitmap.h | 31 +
drivers/staging/apfs/lzfse/lzfse.h | 136 +
drivers/staging/apfs/lzfse/lzfse_decode.c | 74 +
drivers/staging/apfs/lzfse/lzfse_decode_base.c | 652 +++++
drivers/staging/apfs/lzfse/lzfse_encode.c | 163 ++
drivers/staging/apfs/lzfse/lzfse_encode_base.c | 826 ++++++
drivers/staging/apfs/lzfse/lzfse_encode_tables.h | 218 ++
drivers/staging/apfs/lzfse/lzfse_fse.c | 217 ++
drivers/staging/apfs/lzfse/lzfse_fse.h | 606 +++++
drivers/staging/apfs/lzfse/lzfse_internal.h | 612 +++++
drivers/staging/apfs/lzfse/lzfse_main.c | 336 +++
drivers/staging/apfs/lzfse/lzfse_tunables.h | 60 +
drivers/staging/apfs/lzfse/lzvn_decode_base.c | 721 +++++
drivers/staging/apfs/lzfse/lzvn_decode_base.h | 68 +
drivers/staging/apfs/lzfse/lzvn_encode_base.c | 593 ++++
drivers/staging/apfs/lzfse/lzvn_encode_base.h | 116 +
drivers/staging/apfs/message.c | 29 +
drivers/staging/apfs/namei.c | 133 +
drivers/staging/apfs/node.c | 2069 ++++++++++++++
drivers/staging/apfs/object.c | 315 +++
drivers/staging/apfs/snapshot.c | 684 +++++
drivers/staging/apfs/spaceman.c | 1433 ++++++++++
drivers/staging/apfs/super.c | 2099 ++++++++++++++
drivers/staging/apfs/symlink.c | 78 +
drivers/staging/apfs/transaction.c | 959 +++++++
drivers/staging/apfs/unicode.c | 3156 ++++++++++++++++++++++
drivers/staging/apfs/unicode.h | 27 +
drivers/staging/apfs/xattr.c | 912 +++++++
drivers/staging/apfs/xfield.c | 171 ++
45 files changed, 28984 insertions(+)
---
base-commit: 695caca9345a160ecd9645abab8e70cfe849e9ff
change-id: 20250210-apfs-9d4478785f80

Best regards,
--
Ethan Carter Edwards <ethan@ethancedwards.com>