[PATCH v4 00/23] Ext4 Encoding and Case-insensitive support

Gabriel Krisman Bertazi
2018-12-06T23:09:09Z

Hi,

[Resending to include fsdevel, as requested by Dave Chinner]

Following the e2fsprogs changes, these are the corresponding kernel-side
modifications to support the fname_encoding feature.

The patches are split in two parts. The fist 14 patches are refactoring
and improvements to the NLS code, including the utf8 normalization
support. The final patches implement the fname_encoding feature in ext4.

To test this feature, you need to use the tip of e2fsprogs branch, which
already include support for enabling this feature.

As usual, the ucd files are not included in this email because they are
too large, and would actually cause the email message to bounce.

There are two test files for this in a private xfstests branch, that I
plan to submit upstream once we get this series merged:

https://gitlab.collabora.com/krisman/xfstests.git -b encoding_v4

I also tested this with the xfstests smoke tests using two scenarios:
(1) a non-encoding TEST_DEV; (2) a utf8 enabled TEST_DEV. On both
cases, no unrelated regressions where observed. With my branch of
xfstests above, that fixes some related tests, I didn't observe any
regressions.

Gabriel Krisman Bertazi (19):
nls: Wrap uni2char/char2uni callers
nls: Wrap charset field access
nls: Wrap charset hooks in ops structure
nls: Split default charset from NLS core
nls: Split struct nls_charset from struct nls_table
nls: Add support for multiple versions of an encoding
nls: Implement NLS_STRICT_MODE flag
nls: Let charsets define the behavior of tolower/toupper
nls: Add new interface for string comparisons
nls: Add optional normalization and casefold hooks
nls: ascii: Support validation and normalization operations
nls: utf8: Move nls-utf8{,-core}.c
nls: utf8: Integrate utf8 normalization code with utf8 charset
nls: utf8: Introduce test module for normalized utf8 implementation
ext4: Reserve superblock fields for encoding information
ext4: Include encoding information in the superblock
ext4: Support encoding-aware file name lookups
ext4: Implement EXT4_CASEFOLD_FL flag
docs: ext4.rst: Document encoding and case-insensitive

Olaf Weber (4):
nls: utf8: Add unicode character database files
scripts: add trie generator for UTF-8
nls: utf8: Introduce code for UTF-8 normalization
nls: utf8n: reduce the size of utf8data[]

Documentation/admin-guide/ext4.rst | 29 +
fs/befs/linuxvfs.c | 8 +-
fs/cifs/cifs_unicode.c | 15 +-
fs/cifs/cifsfs.c | 2 +-
fs/cifs/connect.c | 2 +-
fs/cifs/dir.c | 7 +-
fs/ext4/dir.c | 59 +
fs/ext4/ext4.h | 33 +-
fs/ext4/hash.c | 38 +-
fs/ext4/ialloc.c | 2 +-
fs/ext4/inline.c | 2 +-
fs/ext4/inode.c | 4 +-
fs/ext4/ioctl.c | 18 +
fs/ext4/namei.c | 85 +-
fs/ext4/super.c | 83 +
fs/fat/dir.c | 13 +-
fs/fat/inode.c | 6 +-
fs/fat/namei_vfat.c | 6 +-
fs/hfs/super.c | 6 +-
fs/hfs/trans.c | 9 +-
fs/hfsplus/options.c | 2 +-
fs/hfsplus/unicode.c | 6 +-
fs/isofs/inode.c | 5 +-
fs/isofs/joliet.c | 3 +-
fs/jfs/jfs_unicode.c | 9 +-
fs/jfs/super.c | 3 +-
fs/nls/Kconfig | 15 +
fs/nls/Makefile | 20 +
fs/nls/mac-celtic.c | 34 +-
fs/nls/mac-centeuro.c | 34 +-
fs/nls/mac-croatian.c | 34 +-
fs/nls/mac-cyrillic.c | 34 +-
fs/nls/mac-gaelic.c | 34 +-
fs/nls/mac-greek.c | 34 +-
fs/nls/mac-iceland.c | 34 +-
fs/nls/mac-inuit.c | 34 +-
fs/nls/mac-roman.c | 34 +-
fs/nls/mac-romanian.c | 34 +-
fs/nls/mac-turkish.c | 34 +-
fs/nls/nls_ascii.c | 84 +-
fs/nls/nls_core.c | 163 ++
fs/nls/nls_cp1250.c | 34 +-
fs/nls/nls_cp1251.c | 34 +-
fs/nls/nls_cp1255.c | 36 +-
fs/nls/nls_cp437.c | 34 +-
fs/nls/nls_cp737.c | 34 +-
fs/nls/nls_cp775.c | 34 +-
fs/nls/nls_cp850.c | 34 +-
fs/nls/nls_cp852.c | 34 +-
fs/nls/nls_cp855.c | 34 +-
fs/nls/nls_cp857.c | 34 +-
fs/nls/nls_cp860.c | 34 +-
fs/nls/nls_cp861.c | 34 +-
fs/nls/nls_cp862.c | 34 +-
fs/nls/nls_cp863.c | 34 +-
fs/nls/nls_cp864.c | 34 +-
fs/nls/nls_cp865.c | 34 +-
fs/nls/nls_cp866.c | 34 +-
fs/nls/nls_cp869.c | 34 +-
fs/nls/nls_cp874.c | 36 +-
fs/nls/nls_cp932.c | 36 +-
fs/nls/nls_cp936.c | 36 +-
fs/nls/nls_cp949.c | 36 +-
fs/nls/nls_cp950.c | 36 +-
fs/nls/{nls_base.c => nls_default.c} | 124 +-
fs/nls/nls_euc-jp.c | 29 +-
fs/nls/nls_iso8859-1.c | 34 +-
fs/nls/nls_iso8859-13.c | 34 +-
fs/nls/nls_iso8859-14.c | 34 +-
fs/nls/nls_iso8859-15.c | 34 +-
fs/nls/nls_iso8859-2.c | 34 +-
fs/nls/nls_iso8859-3.c | 34 +-
fs/nls/nls_iso8859-4.c | 34 +-
fs/nls/nls_iso8859-5.c | 34 +-
fs/nls/nls_iso8859-6.c | 34 +-
fs/nls/nls_iso8859-7.c | 34 +-
fs/nls/nls_iso8859-9.c | 34 +-
fs/nls/nls_koi8-r.c | 34 +-
fs/nls/nls_koi8-ru.c | 30 +-
fs/nls/nls_koi8-u.c | 34 +-
fs/nls/nls_utf8-core.c | 328 +++
fs/nls/nls_utf8-norm.c | 797 ++++++
fs/nls/nls_utf8-selftest.c | 316 +++
fs/nls/nls_utf8.c | 67 -
fs/nls/ucd/README | 34 +
fs/nls/utf8n.h | 117 +
fs/ntfs/inode.c | 2 +-
fs/ntfs/super.c | 6 +-
fs/ntfs/unistr.c | 13 +-
fs/udf/super.c | 3 +-
fs/udf/unicode.c | 4 +-
include/linux/fs.h | 2 +
include/linux/nls.h | 293 ++-
scripts/Makefile | 1 +
scripts/mkutf8data.c | 3392 ++++++++++++++++++++++++++
95 files changed, 7287 insertions(+), 618 deletions(-)
create mode 100644 fs/nls/nls_core.c
rename fs/nls/{nls_base.c => nls_default.c} (89%)
create mode 100644 fs/nls/nls_utf8-core.c
create mode 100644 fs/nls/nls_utf8-norm.c
create mode 100644 fs/nls/nls_utf8-selftest.c
delete mode 100644 fs/nls/nls_utf8.c
create mode 100644 fs/nls/ucd/README
create mode 100644 fs/nls/utf8n.h
create mode 100644 scripts/mkutf8data.c

--
2.20.0.rc2