[PATCH V4 0/2] ndctl: Add daxctl support for the new "famfs" mode of devdax

John Groves
2026-01-18T22:36:03Z

From: John Groves <john@groves.net>

No change since V2 - re-sending due to technical challenges.

No change since V1 - reposting as V2 to keep this with the related
kernel (dax and fuse) patches and libfuse patches.

This short series adds support and tests to daxctl for famfs[1]. The
famfs kernel patch series, under the same "compound cover" as this
series, adds a new 'fsdev_dax' driver for devdax. When that driver
is bound (instead of device_dax), the device is in 'famfs' mode rather
than 'devdax' mode.

References

[1] - https://famfs.org

John Groves (2):
daxctl: Add support for famfs mode
Add test/daxctl-famfs.sh to test famfs mode transitions:

daxctl/device.c | 126 ++++++++++++++--
daxctl/json.c | 6 +-
daxctl/lib/libdaxctl-private.h | 2 +
daxctl/lib/libdaxctl.c | 77 ++++++++++
daxctl/lib/libdaxctl.sym | 7 +
daxctl/libdaxctl.h | 3 +
test/daxctl-famfs.sh | 253 +++++++++++++++++++++++++++++++++
test/meson.build | 2 +
8 files changed, 465 insertions(+), 11 deletions(-)
create mode 100755 test/daxctl-famfs.sh

base-commit: 4f7a1c63b3305c97013d3c46daa6c0f76feff10d
--
2.49.0