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Date:   Tue, 21 Jan 2020 22:14:47 +0000
From:   Al Viro <viro@zeniv.linux.org.uk>
To:     Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>
Cc:     OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        "Theodore Y. Ts'o" <tytso@mit.edu>,
        Namjae Jeon <linkinjeon@gmail.com>,
        Gabriel Krisman Bertazi <krisman@collabora.com>
Subject: Re: vfat: Broken case-insensitive support for UTF-8
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On Tue, Jan 21, 2020 at 09:36:25PM +0000, Al Viro wrote:
> On Tue, Jan 21, 2020 at 09:34:05PM +0100, Pali Rohár wrote:
> 
> > This is a great idea to get FAT equivalence classes. Thank you!
> > 
> > Now I quickly tried it... and it failed. FAT has restriction for number
> > of files in a directory, so I would have to do it in more clever way,
> > e.g prepare N directories and then try to create/open file for each
> > single-point string in every directory until it success or fail in every
> > one.
> 
> IIRC, the limitation in root directory was much harder than in
> subdirectories...  Not sure, though - it had been a long time since
> I had to touch *FAT for any reasons...

Interesting...  FWIW, Linux vfat happily creates 65536 files in root
directory.  What are the native limits?