linux-kernel - Re: [RFC 0/4] fs: provide per-filesystem options to disable fscrypt

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Date:   Sun, 13 Nov 2022 22:02:37 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Niels de Vos <ndevos@...hat.com>
Cc:     Theodore Ts'o <tytso@....edu>, linux-fscrypt@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xiubo Li <xiubli@...hat.com>,
        Marcel Lauhoff <marcel.lauhoff@...e.com>
Subject: Re: [RFC 0/4] fs: provide per-filesystem options to disable fscrypt

On Thu, Nov 10, 2022 at 05:47:10PM +0100, Niels de Vos wrote:
> And, there actually are options like CONFIG_EXT4_FS_POSIX_ACL and
> CONFIG_EXT4_FS_SECURITY. Because these exist already, I did not expect
> too much concerns with proposing a CONFIG_EXT4_FS_ENCRYPTION...

ext4 is a little weird there as most file systems don't do that.
So I think these should go away for ext4 as well.

> Note that even with the additional options, enabling only
> CONFIG_FS_ENCRYPTION causes all the filesystems that support fscrypt to
> have it enabled. For users there is no change, except that they now have
> an option to disable fscrypt support per filesystem.

But why would you do that anyay?