[PATCH v7 00/10] Ext4 case-insensitive support

[Gabriel Krisman Bertazi <krisman@collabora.com>]

Hi Ted,

This is the v7 of the case-insensitive support.  It includes the design
changes we discussed, unicode 12.0 support, and the Linus' request about
the way we store the utf8data.h file.

* We no longer generate utf8data.h during build time.  Instead, it is
added to the tree with instructions on how to generate it.

* Integrate your modifications to README.utf8data.

* Directories without the Casefold inode attribute are no longer
  normalized.

* Update to Unicode 12.0

* Fixes 0day/sparse issues reported against the last version.

* Remove sign-off from Olaf Weber on patch 01 modified by me.  I was
  thinking about this since the last series.  I cannot assume Olaf's
  signoff on patch 01/10, since it changed too much, so make sure he
  keeps the credit and copyright for the script, but drop his
  signoff on the certificate of origin.

* i didn't commented ou t the normalization bits because it is being
  tested by utf8-selftest, so I'm not sure if we should remove
  everything already.  Also, utf8data.h will not get much smaller
  without it.

I suspect the patches adding/modifying utf8data.h might bounce in the
mailing list.  If that is the case, you can find the series at:

  https://gitlab.collabora.com/krisman/linux.git -b ext4-ci-directory-no-nls_v7

You can also find the e2fsprogs latest fixes, that I am proposing on a
different thread, and which is required to support the current patchset at:

  https://gitlab.collabora.com/krisman/e2fsprogs.git -b casefold-feature

As usual, I am testing this with xfstests:

  https://gitlab.collabora.com/krisman/xfstests.git -b casefold-test

(generic/484 and generic/485 in that repository)

Please, let me know what you think.

Gabriel Krisman Bertazi (8):
  unicode: Introduce UTF-8 character database
  unicode: Implement higher level API for string handling
  unicode: Introduce test module for normalized utf8 implementation
  unicode: Update unicode database unicode version 12.0.0
  MAINTAINERS: Add Unicode subsystem entry
  ext4: Include encoding information in the superblock
  ext4: Support case-insensitive file name lookups
  docs: ext4.rst: Document case-insensitive directories

Olaf Weber (2):
  unicode: Introduce code for UTF-8 normalization
  unicode: reduce the size of utf8data[]

 Documentation/admin-guide/ext4.rst |   38 +
 MAINTAINERS                        |    6 +
 fs/Kconfig                         |    1 +
 fs/Makefile                        |    1 +
 fs/ext4/dir.c                      |   48 +
 fs/ext4/ext4.h                     |   42 +-
 fs/ext4/hash.c                     |   34 +-
 fs/ext4/ialloc.c                   |    2 +-
 fs/ext4/inline.c                   |    2 +-
 fs/ext4/inode.c                    |    4 +-
 fs/ext4/ioctl.c                    |   18 +
 fs/ext4/namei.c                    |  107 +-
 fs/ext4/super.c                    |   91 +
 fs/unicode/Kconfig                 |   13 +
 fs/unicode/Makefile                |   19 +
 fs/unicode/README.utf8data         |   57 +
 fs/unicode/utf8-core.c             |  187 ++
 fs/unicode/utf8-norm.c             |  799 ++++++
 fs/unicode/utf8-selftest.c         |  320 +++
 fs/unicode/utf8data.h              | 4106 ++++++++++++++++++++++++++++
 fs/unicode/utf8n.h                 |  117 +
 include/linux/fs.h                 |    2 +
 include/linux/unicode.h            |   30 +
 scripts/Makefile                   |    1 +
 scripts/mkutf8data.c               | 3418 +++++++++++++++++++++++
 25 files changed, 9441 insertions(+), 22 deletions(-)
 create mode 100644 fs/unicode/Kconfig
 create mode 100644 fs/unicode/Makefile
 create mode 100644 fs/unicode/README.utf8data
 create mode 100644 fs/unicode/utf8-core.c
 create mode 100644 fs/unicode/utf8-norm.c
 create mode 100644 fs/unicode/utf8-selftest.c
 create mode 100644 fs/unicode/utf8data.h
 create mode 100644 fs/unicode/utf8n.h
 create mode 100644 include/linux/unicode.h
 create mode 100644 scripts/mkutf8data.c

-- 
2.20.1