linux-kernel - Re: [PATCH v14 11/14] exfat: add Kconfig and Makefile

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Date:   Mon, 6 Apr 2020 09:35:43 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Namjae Jeon <namjae.jeon@...sung.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Valdis Kletnieks <valdis.kletnieks@...edu>,
        Christoph Hellwig <hch@....de>, sj1557.seo@...sung.com,
        Arnd Bergmann <arnd@...db.de>, linkinjeon@...il.com
Subject: Re: [PATCH v14 11/14] exfat: add Kconfig and Makefile

On Monday 06 April 2020 09:27:01 Geert Uytterhoeven wrote:
> I tried to do it myself:
> 
>           Set this to the default input/output character set to use for
>           converting between the encoding that is used for user visible
>           filenames, and the UTF-16 character set that the exFAT filesystem
>           uses.  This can be overridden with the "iocharset" mount option for
>           the exFAT filesystems.
> 
> but then I got puzzled by the _3_ encodings that are part of it:
>   1. the default input/output character set to use for conversion,
>   2. encoding that is used for user visible filenames,
>   3. UTF-16 character set that the exFAT filesystem uses.
> I assume 1 == 2, but there may be more to it?

It is encoding between user visible filenames in VFS and UTF-16, so 1 == 2.