On Fri, Sep 01, 2017 at 02:57:44AM -0300, Gabriel Krisman Bertazi wrote: > > As a follow-up on the discussions held in this list after Ted's proposal > on case-insensitive support for ext4 last year, I've implemented a my > version of it to learn my way through the ext4 code, and to get started > on the task. As my goal would be a slightly more complex approach, with > at least UTF-8 support for lookups, I'd like to hear from you about my > current implementation and the following proposal, as well as if there > is anyone currently working on anything like this, so we could > coordinate efforts. > > Regarding the Unicode proposal (shivers), I am aware of Ben and > Olaf's proposal from 2014, and I plan to work on top of that to get it > updated and upstream. > > Please, let me know your thoughts. > > * Current Implementation > > Simple learning experience to get the wheel spinning, based on Ted Ts'o > initial proposal back in 2016 [1]. It supports ASCII-case folding only > and doesn't rely on on-disk modifications. This isn't a complete implementation of my proposal. In particular one of the things which is missing is: 1. If case-insensitivity is enabled, override the default dcache hash and compare operations to ones that are case insensitive in ext4's dcache_operations structure. This is needed so there is a single dcache entry for case-folded file names. - Ted
