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Message-ID: <20240301-abheben-laborversuch-1a2c74c28643@brauner>
Date: Fri, 1 Mar 2024 14:12:01 +0100
From: Christian Brauner <brauner@...nel.org>
To: Luis Henriques <lhenriques@...e.de>
Cc: Theodore Ts'o <tytso@....edu>, 
	Andreas Dilger <adilger.kernel@...ger.ca>, Alexander Viro <viro@...iv.linux.org.uk>, 
	Jan Kara <jack@...e.cz>, Miklos Szeredi <miklos@...redi.hu>, 
	Amir Goldstein <amir73il@...il.com>, linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-unionfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] fs_parser: handle parameters that can be empty and
 don't have a value

> Unfortunately, the two filesystems that use this flag (ext4 and overlayfs)
> aren't prepared to have the parameter value set to NULL.  Patches #2 and #3
> fix this.

Both ext4 and overlayfs define

#define fsparam_string_empty(NAME, OPT) \
        __fsparam(fs_param_is_string, NAME, OPT, fs_param_can_be_empty, NULL)

Please add that to include/linux/fs_parser.h so that it can be used by both.

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