[0/3] use new mount API for bcachefs

Message

Thomas Bertschinger May 28, 2024, 4:36 a.m. UTC

This updates bcachefs to use the new fs_context_operations functions for
mounting and remounting.

However, rather than using the parsing utilities defined in fs_parser.h,
I stick with using the existing options parsing code that bcachefs
already has. This simplifies the changes, since integrating the bcachefs
options with the generic parsing utilities in fs_context would otherwise
involve some tricky macro manipulations.

Following this series is a new test in Ktest [1] which exercises mount
and remount functionality to test the new code.

[1] https://evilpiepirate.org/git/ktest.git/

Thomas Bertschinger (3):
  bcachefs: add printbuf arg to bch2_parse_mount_opts()
  bcachefs: Add error code to defer option parsing
  bcachefs: use new mount API

 fs/bcachefs/chardev.c     |   4 +-
 fs/bcachefs/disk_groups.c |   2 +-
 fs/bcachefs/errcode.h     |   3 +-
 fs/bcachefs/fs.c          | 113 ++++++++++++++++++++++++++++-------
 fs/bcachefs/opts.c        | 120 ++++++++++++++++++++++++--------------
 fs/bcachefs/opts.h        |  12 +++-
 6 files changed, 185 insertions(+), 69 deletions(-)