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Diffstat (limited to 'Documentation/filesystems/bcachefs/casefolding.rst')
| -rw-r--r-- | Documentation/filesystems/bcachefs/casefolding.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/filesystems/bcachefs/casefolding.rst b/Documentation/filesystems/bcachefs/casefolding.rst index ba5de97d155f..871a38f557e8 100644 --- a/Documentation/filesystems/bcachefs/casefolding.rst +++ b/Documentation/filesystems/bcachefs/casefolding.rst @@ -88,3 +88,21 @@ This would fail if negative dentry's were cached. This is slightly suboptimal, but could be fixed in future with some vfs work. + +References +---------- + +(from Peter Anvin, on the list) + +It is worth noting that Microsoft has basically declared their +"recommended" case folding (upcase) table to be permanently frozen (for +new filesystem instances in the case where they use an on-disk +translation table created at format time.) As far as I know they have +never supported anything other than 1:1 conversion of BMP code points, +nor normalization. + +The exFAT specification enumerates the full recommended upcase table, +although in a somewhat annoying format (basically a hex dump of +compressed data): + +https://learn.microsoft.com/en-us/windows/win32/fileio/exfat-specification |