linux-kernel - Re: [PATCH v5 0/9] ovl: Enable support for casefold layers

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Message-ID: <cffb248a-87ce-434e-bd64-2c8112872a18@igalia.com>
Date: Thu, 14 Aug 2025 14:30:31 -0300
From: André Almeida <andrealmeid@...lia.com>
To: Amir Goldstein <amir73il@...il.com>
Cc: Miklos Szeredi <miklos@...redi.hu>, Theodore Tso <tytso@....edu>,
 linux-unionfs@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk>,
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
 kernel-dev@...lia.com, Gabriel Krisman Bertazi <krisman@...nel.org>
Subject: Re: [PATCH v5 0/9] ovl: Enable support for casefold layers

Em 14/08/2025 14:22, André Almeida escreveu:
> Hi all,
> 
> We would like to support the usage of casefold layers with overlayfs to
> be used with container tools. This use case requires a simple setup,
> where every layer will have the same encoding setting (i.e. Unicode
> version and flags), using one upper and one lower layer.
> 

Amir,

I tried to run your xfstest for casefolded ovl[1] but I can see that it 
still requires some work. I tried to fix some of the TODO's but I didn't 
managed to mkfs the base fs with casefold enabled... but we might as 
well discuss this in a dedicated xfstest email thread if you want to 
send a RFC for the test.

[1] 
https://github.com/amir73il/xfstests/commit/03b3facf60e14cab9fc563ad54893563b4cb18e4