linux-toradex.git/drivers/md/dm-vdo, branch master

Merge tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2026-06-16T07:50:54+00:00

Pull device mapper updates from Mikulas Patocka:

 - small cleanups in dm-vdo, dm-raid, dm-cache, dm-zoned-metadata

 - rework of dm-ima

 - introduce dm-inlinecrypt

 - fix wrong return value in dm-ioctl

 - fix rcu stall when polling

* tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm-zoned-metadata: Use strscpy() to copy device name
  dm cache: make smq background work limit configurable
  dm-inlinecrypt: add support for hardware-wrapped keys
  dm: limit target bio polling to one shot
  dm-ioctl: report an error if a device has no table
  dm: add documentation for dm-inlinecrypt target
  dm-inlinecrypt: add target for inline block device encryption
  block: export blk-crypto symbols required by dm-inlinecrypt
  dm-ima: use active table's size if available
  dm-ima: Fail more gracefully in dm_ima_measure_on_*
  dm-ima: Handle race between rename and table swap
  dm-ima: Fix issues with dm_ima_measure_on_device_rename
  dm-ima: remove new_map from dm_ima_measure_on_device_clear
  dm-ima: Fix UAF errors and measuring incorrect context
  dm-ima: don't copy the active table to the inactive table
  dm-ima: Remove status_flags from dm_ima_measure_on_table_load()
  dm-ima: remove broken last_target_measured logic
  dm-ima: remove dm_ima_reset_data()
  dm-raid: only requeue bios when dm is suspending
  dm vdo: use get_random_u32() where appropriate

dm vdo: use GFP_NOIO for blkdev_issue_zeroout on format path

2026-05-04T13:02:25+00:00

GFP_NOWAIT is inappropriate when blkdev_issue_zeroout may sleep and
bio_alloc can fail under pressure; use GFP_NOIO for clear_partition and
vdo_clear_layout zeroout calls.

Signed-off-by: Bruce Johnston 
Signed-off-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka 
Fixes: fc1d43826702 ("dm vdo: save the formatted metadata to disk")

dm vdo: use get_random_u32() where appropriate

2026-05-04T12:33:42+00:00

Use the typed random integer helpers instead of
get_random_bytes() when filling a single integer variable.
The helpers return the value directly, require no pointer
or size argument, and better express intent.

Signed-off-by: David Carlier 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: Fix spelling mistake "postive" -> "positive"

2026-03-30T10:06:08+00:00

There is a spelling mistake in a vdo_log_error message. Fix it.

Signed-off-by: Colin Ian King 
Signed-off-by: Mikulas Patocka

dm vdo: save the formatted metadata to disk

2026-03-26T17:19:25+00:00

Add vdo_save_super_block() and vdo_save_geometry_block() to perform
asynchronous writes of the super block and geometry block respectively.
Add vdo_clear_layout() to zero the UDS index's first block, the block
map partition, and the recovery journal partition.

These operations are driven by new phases in the pre-load state machine
(PRE_LOAD_PHASE_FORMAT_*), ensuring that disk writes happen during
pre-resume rather than during dmsetup create.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: add formatting logic and initialization

2026-03-26T17:19:15+00:00

Add the core formatting logic. The initialization path is updated to
read the geometry block (block 0 on the storage device). If the block
is entirely zeroed, the device is treated as unformatted and
vdo_format() is called. Otherwise, the existing geometry is parsed
and the VDO is loaded as before.

The vdo_format() function initializes the volume geometry and super
block, and marks the VDO as needing it's layout saved to disk.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: add synchronous metadata I/O submission helper

2026-03-26T17:19:05+00:00

Add vdo_submit_metadata_vio_wait(), a synchronous I/O submission
helper that blocks until completion. This is needed for I/O during
early initialization before work queues are available.

Refactor read_geometry_block() to use it.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: add geometry block structure

2026-03-26T17:18:55+00:00

Introduce a vdo_geometry_block structure, containing a vio and buffer,
mirroring the existing vdo_super_block structure. Both are now
initialized at VDO startup and freed at shutdown, establishing the
infrastructure needed to read and write the geometry block using the
same mechanisms as the super block.

Refactor read_geometry_block() to use the new structure.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: add geometry block encoding

2026-03-26T17:18:42+00:00

Add vdo_encode_volume_geometry() to write the geometry block into a
buffer so that it can be written to disk. The corresponding decode
path already exists.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka

dm vdo: add upfront validation for logical size

2026-03-26T17:18:25+00:00

Add a validation check that the logical size passed via the table line
does not exceed MAXIMUM_VDO_LOGICAL_BLOCKS.

Signed-off-by: Bruce Johnston 
Reviewed-by: Matthew Sakai 
Signed-off-by: Mikulas Patocka