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[0/2] Reconcile Encryption and Casefolding in Ext4

Message ID 20210203090745.4103054-1-drosen@google.com
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Series Reconcile Encryption and Casefolding in Ext4 | expand

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Daniel Rosenberg Feb. 3, 2021, 9:07 a.m. UTC 
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