linux-kernel - [PATCH 0/2] Reconcile Encryption and Casefolding in Ext4

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Message-Id: <20210203090745.4103054-1-drosen@google.com>
Date:   Wed,  3 Feb 2021 09:07:43 +0000
From:   Daniel Rosenberg <drosen@...gle.com>
To:     "Theodore Y . Ts'o" <tytso@....edu>,
        Eric Biggers <ebiggers@...nel.org>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        linux-ext4@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Gabriel Krisman Bertazi <krisman@...labora.com>,
        kernel-team@...roid.com, Daniel Rosenberg <drosen@...gle.com>
Subject: [PATCH 0/2] Reconcile Encryption and Casefolding in Ext4

These patches add support for ext4 encryption and casefolding at the same time.
Since the hash for encrypted casefolded directory names cannot be computed
without the key, we need to store the hash on disk. We only do so for encrypted
and casefolded directories to avoid on disk format changes.

e2fsprogs has already been updated with support for casefolding and encryption.

Daniel Rosenberg (2):
  ext4: Handle casefolding with encryption
  ext4: Optimize match for casefolded encrypted dirs

 Documentation/filesystems/ext4/directory.rst |  27 ++
 fs/ext4/dir.c                                |  46 ++-
 fs/ext4/ext4.h                               |  79 +++--
 fs/ext4/hash.c                               |  25 +-
 fs/ext4/ialloc.c                             |   5 +-
 fs/ext4/inline.c                             |  41 +--
 fs/ext4/namei.c                              | 323 +++++++++++++------
 fs/ext4/super.c                              |   6 -
 8 files changed, 391 insertions(+), 161 deletions(-)


base-commit: e9f53353e166a67dfe4f8295100f8ac39d6cf10b
-- 
2.30.0.365.g02bc693789-goog