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

Niels de Vos
2022-11-10T14:13:47Z

While more filesystems are getting support for fscrypt, it is useful to
be able to disable fscrypt for a selection of filesystems, while
enabling it for others.

The new USE_FS_ENCRYPTION define gets picked up in
include/linux/fscrypt.h. This allows filesystems to choose to use the
empty function definitions, or the functional ones when fscrypt is to be
used with the filesystem.

Using USE_FS_ENCRYPTION is a relatively clean approach, and requires
minimal changes to the filesystems supporting fscrypt. This RFC is
mostly for checking the acceptance of this solution, or if an other
direction is preferred.

---

Niels de Vos (4):
fscrypt: introduce USE_FS_ENCRYPTION
fs: make fscrypt support an ext4 config option
fs: make fscrypt support a f2fs config option
fs: make fscrypt support a UBIFS config option

Documentation/filesystems/fscrypt.rst | 2 +-
fs/crypto/Kconfig | 3 +++
fs/crypto/fscrypt_private.h | 2 ++
fs/ext4/Kconfig | 13 ++++++++++++-
fs/ext4/Makefile | 2 +-
fs/ext4/ext4.h | 12 ++++++++----
fs/ext4/inode.c | 6 +++---
fs/ext4/namei.c | 6 +++---
fs/ext4/super.c | 6 +++---
fs/ext4/sysfs.c | 8 ++++----
fs/f2fs/Kconfig | 15 +++++++++++++--
fs/f2fs/data.c | 2 +-
fs/f2fs/dir.c | 6 +++---
fs/f2fs/f2fs.h | 8 ++++++--
fs/f2fs/super.c | 6 +++---
fs/f2fs/sysfs.c | 8 ++++----
fs/ubifs/Kconfig | 14 ++++++++++++--
fs/ubifs/Makefile | 2 +-
fs/ubifs/sb.c | 4 ++--
fs/ubifs/ubifs.h | 7 +++++--
include/linux/fscrypt.h | 6 +++---
21 files changed, 93 insertions(+), 45 deletions(-)

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2.37.3