From: tytso@mit.edu
To: Satya Tangirala <satyat@google.com>
Cc: linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-ext4@vger.kernel.org, Eric Biggers <ebiggers@google.com>
Subject: Re: [PATCH v4 4/4] ext4: add inline encryption support
Date: Wed, 8 Jul 2020 13:18:12 -0400 [thread overview]
Message-ID: <20200708171812.GF1627842@mit.edu> (raw)
In-Reply-To: <20200702015607.1215430-5-satyat@google.com>
On Thu, Jul 02, 2020 at 01:56:07AM +0000, Satya Tangirala wrote:
> From: Eric Biggers <ebiggers@google.com>
>
> Wire up ext4 to support inline encryption via the helper functions which
> fs/crypto/ now provides. This includes:
>
> - Adding a mount option 'inlinecrypt' which enables inline encryption
> on encrypted files where it can be used.
>
> - Setting the bio_crypt_ctx on bios that will be submitted to an
> inline-encrypted file.
>
> Note: submit_bh_wbc() in fs/buffer.c also needed to be patched for
> this part, since ext4 sometimes uses ll_rw_block() on file data.
>
> - Not adding logically discontiguous data to bios that will be submitted
> to an inline-encrypted file.
>
> - Not doing filesystem-layer crypto on inline-encrypted files.
>
> Signed-off-by: Eric Biggers <ebiggers@google.com>
> Co-developed-by: Satya Tangirala <satyat@google.com>
> Signed-off-by: Satya Tangirala <satyat@google.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
next prev parent reply other threads:[~2020-07-08 17:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 1:56 [PATCH v4 0/4] Inline Encryption Support for fscrypt Satya Tangirala
2020-07-02 1:56 ` [PATCH v4 1/4] fs: introduce SB_INLINECRYPT Satya Tangirala
2020-07-08 17:07 ` tytso
2020-07-02 1:56 ` [PATCH v4 2/4] fscrypt: add inline encryption support Satya Tangirala
2020-07-08 17:14 ` tytso
2020-07-02 1:56 ` [PATCH v4 3/4] f2fs: " Satya Tangirala
2020-07-02 1:56 ` [PATCH v4 4/4] ext4: " Satya Tangirala
2020-07-08 17:18 ` tytso [this message]
2020-07-08 17:34 ` Eric Biggers
2020-07-07 18:08 ` [PATCH v4 0/4] Inline Encryption Support for fscrypt Eric Biggers
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