linux-kernel - [RFC] fscrypt_key_required mount option

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Message-Id: <20190314171559.27584-1-richard@nod.at>
Date:   Thu, 14 Mar 2019 18:15:55 +0100
From:   Richard Weinberger <richard@....at>
To:     linux-mtd@...ts.infradead.org
Cc:     linux-fscrypt@...r.kernel.org, jaegeuk@...nel.org, tytso@....edu,
        linux-unionfs@...r.kernel.org, miklos@...redi.hu,
        amir73il@...il.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, paullawrence@...gle.com
Subject: [RFC] fscrypt_key_required mount option

This series is an RFC, it outlines how an filesystem, in this case UBIFS,
could implement a mount option to disable filesystem operations on encrypted
files where no key is present.
The desired byproduct is that in this case ->d_revalidate() is not needed
anymore and VFS folks are in less fear about the dcache implications.

Thanks,
//richard

[PATCH 1/4] fscrypt: Implement FS_CFLG_OWN_D_OPS
[PATCH 2/4] fscrypt: Export fscrypt_d_ops
[PATCH 3/4] ubifs: Simplify fscrypt_get_encryption_info() error
[PATCH 4/4] ubifs: Implement new mount option, fscrypt_key_required