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

dm vdo indexer: embed geometry in parent structures

2026-07-28T12:34:47+00:00

Embed struct index_geometry in struct uds_configuration and struct volume directly, eliminating the need to allocate (and free) the geometry separately. Signed-off-by: corwin Signed-off-by: Matthew Sakai Signed-off-by: Mikulas Patocka

dm vdo indexer: simplify sub-index parameter calculations

2026-07-28T12:32:35+00:00

Pull the calculations from split_config() into compute_volume_sub_index_parameters(). For sparse indexes, this eliminates the duplication of both the configs and geometries in favor of merely having 2 sub_index_parameters structures. Also expand the sub_index_parameters structure to include the small number of fields its users rely on from both the config and the geometry. Signed-off-by: corwin Signed-off-by: Matthew Sakai Signed-off-by: Mikulas Patocka

dm vdo: don't read repair field in loop condition

2026-07-17T19:54:48+00:00

Respell the vio launch loop to use the existing vio_count value. The repair completion is not guaranteed to persist after all of the metadata_vios are launched. This can not currently cause problems due to the way vio callbacks are handled, but it is technically not safe to access those fields. Signed-off-by: Matthew Sakai Signed-off-by: Mikulas Patocka

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