Hi Linus,
The following changes since commit 54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478:
Linux 6.8-rc3 (2024-02-04 12:20:36 +0000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-6.9/dm-vdo
for you to fetch changes up to cb824724dccb3195d22cad96e7b65fe13621d0a6:
dm vdo: document minimum metadata size requirements (2024-03-07 19:56:24 -0500)
Please pull, thanks.
Mike
----------------------------------------------------------------
- Introduce the DM vdo target which provides block-level
deduplication, compression, and thin provisioning. Please see both:
Documentation/admin-guide/device-mapper/vdo.rst and
Documentation/admin-guide/device-mapper/vdo-design.rst
- The DM vdo target handles its concurrency by pinning an IO, and
subsequent stages of handling that IO, to a particular VDO thread.
This aspect of VDO is "unique" but its overall implementation is
very tightly coupled to its mostly lockless threading model.
As such, VDO is not easily changed to use more traditional
finer-grained locking and Linux workqueues. Please see the "Zones
and Threading" section of vdo-design.rst
- The DM vdo target has been used in production for many years but has
seen significant changes over the past ~6 years to prepare it for
upstream inclusion. The codebase is still large but it is isolated
to drivers/md/dm-vdo/ and has been made considerably more
approachable and maintainable.
- Matt Sakai has been added to the MAINTAINERS file to reflect that he
will send VDO changes upstream through the DM subsystem maintainers.
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----------------------------------------------------------------
Bruce Johnston (4):
dm vdo dedupe: switch to using int-map instead of pointer-map
dm vdo int-map: rename functions to use a common vdo_int_map preamble
dm vdo int-map: remove unused parameter from vdo_int_map_create
dm-vdo: change unnamed enums to defines
Chung Chung (1):
dm vdo: clean up scnprintf usage
Dan Carpenter (1):
dm vdo slab-depot: delete unnecessary check in allocate_components
Harshit Mogalapalli (1):
dm vdo volume-index: fix an assert statement in start_restoring_volume_sub_index()
Jiapeng Chong (1):
dm vdo: fix various function names referenced in comment blocks
Ken Raeburn (2):
dm vdo message-stats: reformat to remove excessive newlines
dm vdo: document log_level parameter
Matthew Sakai (53):
dm: add documentation for dm-vdo target
dm vdo: add the MurmurHash3 fast hashing algorithm
dm vdo: add memory allocation utilities
dm vdo: add basic logging and support utilities
dm vdo: add vdo type declarations, constants, and simple data structures
dm vdo: add thread and synchronization utilities
dm vdo: add specialized request queueing functionality
dm vdo: add basic hash map data structures
dm vdo: add deduplication configuration structures
dm vdo: add deduplication index storage interface
dm vdo: implement the delta index
dm vdo: implement the volume index
dm vdo: implement the open chapter and chapter indexes
dm vdo: implement the chapter volume store
dm vdo: implement top-level deduplication index
dm vdo: implement external deduplication index interface
dm vdo: add administrative state and action manager
dm vdo: add vio, the request object for vdo metadata
dm vdo: add data_vio, the request object which services incoming bios
dm vdo: add flush support
dm vdo: add the vdo io_submitter
dm vdo: add hash locks and hash zones
dm vdo: add use of deduplication index in hash zones
dm vdo: add the compressed block bin packer
dm vdo: add slab structure, slab journal and reference counters
dm vdo: add the slab summary
dm vdo: add the block allocators and physical zones
dm vdo: add the slab depot
dm vdo: add the block map
dm vdo: implement the block map page cache
dm vdo: add the recovery journal
dm vdo: add repair of damaged vdo volumes
dm vdo: add the primary vdo structure
dm vdo: add the on-disk formats and marshalling of vdo structures
dm vdo: add statistics reporting
dm vdo: add sysfs support for setting parameters and fetching stats
dm vdo: add debugging support
dm vdo: add the top-level DM target
dm vdo: enable configuration and building of dm-vdo
dm vdo: add MAINTAINERS file entry
dm vdo: add vdo documentation to device-mapper index
dm vdo: add vio life cycle details to design doc
dm vdo: add documentation details on zones and locking
dm vdo: remove unnecessary indexer.h includes
dm vdo indexer delta-index: fix typos in comments
dm vdo: update module comments
dm vdo: remove outdated pointer_map reference
dm vdo errors: remove unused error codes
dm vdo indexer: update ASSERT and ASSERT_LOG_ONLY usage
dm vdo indexer: fix use after free
dm vdo: remove vdo_perform_once
dm vdo: remove meaningless version number constant
dm vdo: document minimum metadata size requirements
Mike Snitzer (76):
dm vdo io-submitter: remove get_bio_sector
dm vdo io-submitter: rename to vdo_submit_metadata_vio
dm vdo io-submitter: rename to vdo_submit_flush_vio
dm vdo io-submitter: rename to vdo_submit_data_vio
dm vdo io-submitter: rename to vdo_submit_vio and submit_data_vio
dm vdo wait-queue: add proper namespace to interface
dm vdo wait-queue: remove unused debug function vdo_waitq_get_next_waiter
dm vdo wait-queue: optimize vdo_waitq_dequeue_matching_waiters
dm vdo block-map: optimize enter_zone_read_only_mode
dm vdo wait-queue: rename to vdo_waitq_dequeue_waiter
dm vdo: fix how dm_kcopyd_client_create() failure is checked
dm vdo: use a proper Makefile for dm-vdo
dm vdo block-map: fix a few small nits
dm vdo block-map: use uds_log_ratelimit() rather than open code it
dm vdo block-map: remove extra vdo arg from initialize_block_map_zone
dm vdo block-map: avoid extra dereferences to access vdo object
dm vdo block-map: rename struct cursors member to 'completion'
dm vdo: slight cleanup of UDS error codes
dm vdo: rename uds_map_to_system_error to uds_status_to_errno
dm vdo: rename vdo_map_to_system_error to vdo_status_to_errno
dm vdo data-vio: rename is_trim flag to is_discard
dm vdo slab-depot: fix various small nits
dm vdo dedupe: fix various small nits
dm vdo index: fix various small nits
dm vdo: rename struct geometry to index_geometry
dm vdo: rename struct configuration to uds_configuration
dm vdo: fix sparse warnings about missing statics
dm vdo: fix sparse 'warning: Using plain integer as NULL pointer'
dm vdo: fix various blk_opf_t sparse warnings
dm vdo data-vio: silence sparse warnings about locking context imbalances
dm vdo dedupe: silence sparse warnings about locking context imbalances
dm vdo recovery-journal: fix sparse 'mixed bitwiseness' warning
dm vdo: use #define for NO_CHAPTER and NO_CHAPTER_INDEX_ENTRY
dm vdo string-utils: remove unnecessary includes
dm vdo dedupe: fix various small nits
dm vdo: cleanup style for comments in structs
dm vdo chapter_index: fix a few small nits
dm vdo delta-index: fix various small nits
dm vdo: tweak wait_for_completion_interruptible callers
dm vdo logger: switch UDS_LOG_NOTICE to be alias for UDS_LOG_INFO
dm vdo logger: update logging to start with "device-mapper: vdo"
dm vdo block-map: rename page state name from "UDS_FREE" to "FREE"
dm vdo: make uds_*_semaphore interface private to uds-threads.c
dm vdo uds-threads: eliminate uds_*_semaphore interfaces
dm vdo uds-threads: push 'barrier' down to sparse-cache
dm vdo indexer sparse-cache: cleanup threads_barrier code
dm vdo: rename uds-threads.[ch] to thread-utils.[ch]
dm vdo indexer: rename uds.h to indexer.h
dm vdo: fold thread-cond-var.c into thread-utils
dm vdo thread-utils: push uds_*_cond interface down to indexer
dm vdo thread-utils: remove all uds_*_mutex wrappers
dm vdo thread-utils: further cleanup of thread functions
dm vdo thread-utils: cleanup included headers
dm vdo thread-registry: rename all methods to reflect vdo-only use
dm vdo thread-device: rename all methods to reflect vdo-only use
dm vdo memory-alloc: simplify allocations_allowed()
dm vdo flush: initialize return to NULL in allocate_flush
dm vdo indexer-volume: fix missing mutex_lock in process_entry
dm vdo: include <asm/current.h> to resolve current being undeclared
dm vdo: move indexer files into sub-directory
dm vdo memory-alloc: change from uds_ to vdo_ namespace
dm vdo memory-alloc: rename vdo_do_allocation to __vdo_do_allocation
dm vdo memory-alloc: return VDO_SUCCESS on success
dm vdo: check for VDO_SUCCESS return value from memory-alloc functions
dm vdo int-map: return VDO_SUCCESS on success
dm vdo thread-utils: return VDO_SUCCESS on vdo_create_thread success
dm-vdo funnel-workqueue: return VDO_SUCCESS from make_simple_work_queue
dm vdo permassert: audit all of ASSERT to test for VDO_SUCCESS
dm vdo encodings: update some stale comments
dm vdo target: eliminate inappropriate uses of UDS_SUCCESS
dm vdo: remove all sysfs interfaces
dm vdo: add 'log_level' module parameter
dm vdo logger: remove log level to string conversion code
dm vdo funnel-queue: change from uds_ to vdo_ namespace
dm vdo logger: change from uds_ to vdo_ namespace
dm vdo string-utils: change from uds_ to vdo_ namespace
Susan LeGendre-McGhee (2):
dm vdo: move encoding constants to encodings.c
dm vdo: remove internal ticket references
Yang Li (1):
dm vdo block-map: Remove stray semicolon
Documentation/admin-guide/device-mapper/index.rst | 2 +
.../admin-guide/device-mapper/vdo-design.rst | 633 +++
Documentation/admin-guide/device-mapper/vdo.rst | 406 ++
MAINTAINERS | 8 +
drivers/md/Kconfig | 2 +
drivers/md/Makefile | 1 +
drivers/md/dm-vdo/Kconfig | 17 +
drivers/md/dm-vdo/Makefile | 57 +
drivers/md/dm-vdo/action-manager.c | 388 ++
drivers/md/dm-vdo/action-manager.h | 110 +
drivers/md/dm-vdo/admin-state.c | 506 ++
drivers/md/dm-vdo/admin-state.h | 178 +
drivers/md/dm-vdo/block-map.c | 3318 +++++++++++++
drivers/md/dm-vdo/block-map.h | 394 ++
drivers/md/dm-vdo/completion.c | 140 +
drivers/md/dm-vdo/completion.h | 152 +
drivers/md/dm-vdo/constants.h | 96 +
drivers/md/dm-vdo/cpu.h | 59 +
drivers/md/dm-vdo/data-vio.c | 2063 ++++++++
drivers/md/dm-vdo/data-vio.h | 670 +++
drivers/md/dm-vdo/dedupe.c | 3003 ++++++++++++
drivers/md/dm-vdo/dedupe.h | 120 +
drivers/md/dm-vdo/dm-vdo-target.c | 2910 +++++++++++
drivers/md/dm-vdo/dump.c | 275 ++
drivers/md/dm-vdo/dump.h | 17 +
drivers/md/dm-vdo/encodings.c | 1483 ++++++
drivers/md/dm-vdo/encodings.h | 1298 +++++
drivers/md/dm-vdo/errors.c | 307 ++
drivers/md/dm-vdo/errors.h | 73 +
drivers/md/dm-vdo/flush.c | 560 +++
drivers/md/dm-vdo/flush.h | 44 +
drivers/md/dm-vdo/funnel-queue.c | 170 +
drivers/md/dm-vdo/funnel-queue.h | 110 +
drivers/md/dm-vdo/funnel-workqueue.c | 638 +++
drivers/md/dm-vdo/funnel-workqueue.h | 51 +
drivers/md/dm-vdo/indexer/chapter-index.c | 293 ++
drivers/md/dm-vdo/indexer/chapter-index.h | 61 +
drivers/md/dm-vdo/indexer/config.c | 376 ++
drivers/md/dm-vdo/indexer/config.h | 124 +
drivers/md/dm-vdo/indexer/delta-index.c | 1970 ++++++++
drivers/md/dm-vdo/indexer/delta-index.h | 279 ++
drivers/md/dm-vdo/indexer/funnel-requestqueue.c | 279 ++
drivers/md/dm-vdo/indexer/funnel-requestqueue.h | 31 +
drivers/md/dm-vdo/indexer/geometry.c | 201 +
drivers/md/dm-vdo/indexer/geometry.h | 140 +
drivers/md/dm-vdo/indexer/hash-utils.h | 66 +
drivers/md/dm-vdo/indexer/index-layout.c | 1765 +++++++
drivers/md/dm-vdo/indexer/index-layout.h | 43 +
drivers/md/dm-vdo/indexer/index-page-map.c | 173 +
drivers/md/dm-vdo/indexer/index-page-map.h | 50 +
drivers/md/dm-vdo/indexer/index-session.c | 739 +++
drivers/md/dm-vdo/indexer/index-session.h | 85 +
drivers/md/dm-vdo/indexer/index.c | 1388 ++++++
drivers/md/dm-vdo/indexer/index.h | 83 +
drivers/md/dm-vdo/indexer/indexer.h | 353 ++
drivers/md/dm-vdo/indexer/io-factory.c | 415 ++
drivers/md/dm-vdo/indexer/io-factory.h | 64 +
drivers/md/dm-vdo/indexer/open-chapter.c | 426 ++
drivers/md/dm-vdo/indexer/open-chapter.h | 79 +
drivers/md/dm-vdo/indexer/radix-sort.c | 330 ++
drivers/md/dm-vdo/indexer/radix-sort.h | 26 +
drivers/md/dm-vdo/indexer/sparse-cache.c | 624 +++
drivers/md/dm-vdo/indexer/sparse-cache.h | 46 +
drivers/md/dm-vdo/indexer/volume-index.c | 1283 +++++
drivers/md/dm-vdo/indexer/volume-index.h | 193 +
drivers/md/dm-vdo/indexer/volume.c | 1693 +++++++
drivers/md/dm-vdo/indexer/volume.h | 172 +
drivers/md/dm-vdo/int-map.c | 707 +++
drivers/md/dm-vdo/int-map.h | 39 +
drivers/md/dm-vdo/io-submitter.c | 477 ++
drivers/md/dm-vdo/io-submitter.h | 47 +
drivers/md/dm-vdo/logger.c | 239 +
drivers/md/dm-vdo/logger.h | 100 +
drivers/md/dm-vdo/logical-zone.c | 373 ++
drivers/md/dm-vdo/logical-zone.h | 89 +
drivers/md/dm-vdo/memory-alloc.c | 438 ++
drivers/md/dm-vdo/memory-alloc.h | 162 +
drivers/md/dm-vdo/message-stats.c | 432 ++
drivers/md/dm-vdo/message-stats.h | 13 +
drivers/md/dm-vdo/murmurhash3.c | 175 +
drivers/md/dm-vdo/murmurhash3.h | 15 +
drivers/md/dm-vdo/numeric.h | 78 +
drivers/md/dm-vdo/packer.c | 780 +++
drivers/md/dm-vdo/packer.h | 122 +
drivers/md/dm-vdo/permassert.c | 26 +
drivers/md/dm-vdo/permassert.h | 45 +
drivers/md/dm-vdo/physical-zone.c | 644 +++
drivers/md/dm-vdo/physical-zone.h | 115 +
drivers/md/dm-vdo/priority-table.c | 224 +
drivers/md/dm-vdo/priority-table.h | 47 +
drivers/md/dm-vdo/recovery-journal.c | 1762 +++++++
drivers/md/dm-vdo/recovery-journal.h | 316 ++
drivers/md/dm-vdo/repair.c | 1756 +++++++
drivers/md/dm-vdo/repair.h | 14 +
drivers/md/dm-vdo/slab-depot.c | 5101 ++++++++++++++++++++
drivers/md/dm-vdo/slab-depot.h | 601 +++
drivers/md/dm-vdo/statistics.h | 278 ++
drivers/md/dm-vdo/status-codes.c | 94 +
drivers/md/dm-vdo/status-codes.h | 86 +
drivers/md/dm-vdo/string-utils.c | 22 +
drivers/md/dm-vdo/string-utils.h | 23 +
drivers/md/dm-vdo/thread-device.c | 34 +
drivers/md/dm-vdo/thread-device.h | 20 +
drivers/md/dm-vdo/thread-registry.c | 93 +
drivers/md/dm-vdo/thread-registry.h | 32 +
drivers/md/dm-vdo/thread-utils.c | 108 +
drivers/md/dm-vdo/thread-utils.h | 20 +
drivers/md/dm-vdo/time-utils.h | 28 +
drivers/md/dm-vdo/types.h | 393 ++
drivers/md/dm-vdo/vdo.c | 1730 +++++++
drivers/md/dm-vdo/vdo.h | 362 ++
drivers/md/dm-vdo/vio.c | 500 ++
drivers/md/dm-vdo/vio.h | 199 +
drivers/md/dm-vdo/wait-queue.c | 205 +
drivers/md/dm-vdo/wait-queue.h | 138 +
115 files changed, 53411 insertions(+)
create mode 100644 Documentation/admin-guide/device-mapper/vdo-design.rst
create mode 100644 Documentation/admin-guide/device-mapper/vdo.rst
create mode 100644 drivers/md/dm-vdo/Kconfig
create mode 100644 drivers/md/dm-vdo/Makefile
create mode 100644 drivers/md/dm-vdo/action-manager.c
create mode 100644 drivers/md/dm-vdo/action-manager.h
create mode 100644 drivers/md/dm-vdo/admin-state.c
create mode 100644 drivers/md/dm-vdo/admin-state.h
create mode 100644 drivers/md/dm-vdo/block-map.c
create mode 100644 drivers/md/dm-vdo/block-map.h
create mode 100644 drivers/md/dm-vdo/completion.c
create mode 100644 drivers/md/dm-vdo/completion.h
create mode 100644 drivers/md/dm-vdo/constants.h
create mode 100644 drivers/md/dm-vdo/cpu.h
create mode 100644 drivers/md/dm-vdo/data-vio.c
create mode 100644 drivers/md/dm-vdo/data-vio.h
create mode 100644 drivers/md/dm-vdo/dedupe.c
create mode 100644 drivers/md/dm-vdo/dedupe.h
create mode 100644 drivers/md/dm-vdo/dm-vdo-target.c
create mode 100644 drivers/md/dm-vdo/dump.c
create mode 100644 drivers/md/dm-vdo/dump.h
create mode 100644 drivers/md/dm-vdo/encodings.c
create mode 100644 drivers/md/dm-vdo/encodings.h
create mode 100644 drivers/md/dm-vdo/errors.c
create mode 100644 drivers/md/dm-vdo/errors.h
create mode 100644 drivers/md/dm-vdo/flush.c
create mode 100644 drivers/md/dm-vdo/flush.h
create mode 100644 drivers/md/dm-vdo/funnel-queue.c
create mode 100644 drivers/md/dm-vdo/funnel-queue.h
create mode 100644 drivers/md/dm-vdo/funnel-workqueue.c
create mode 100644 drivers/md/dm-vdo/funnel-workqueue.h
create mode 100644 drivers/md/dm-vdo/indexer/chapter-index.c
create mode 100644 drivers/md/dm-vdo/indexer/chapter-index.h
create mode 100644 drivers/md/dm-vdo/indexer/config.c
create mode 100644 drivers/md/dm-vdo/indexer/config.h
create mode 100644 drivers/md/dm-vdo/indexer/delta-index.c
create mode 100644 drivers/md/dm-vdo/indexer/delta-index.h
create mode 100644 drivers/md/dm-vdo/indexer/funnel-requestqueue.c
create mode 100644 drivers/md/dm-vdo/indexer/funnel-requestqueue.h
create mode 100644 drivers/md/dm-vdo/indexer/geometry.c
create mode 100644 drivers/md/dm-vdo/indexer/geometry.h
create mode 100644 drivers/md/dm-vdo/indexer/hash-utils.h
create mode 100644 drivers/md/dm-vdo/indexer/index-layout.c
create mode 100644 drivers/md/dm-vdo/indexer/index-layout.h
create mode 100644 drivers/md/dm-vdo/indexer/index-page-map.c
create mode 100644 drivers/md/dm-vdo/indexer/index-page-map.h
create mode 100644 drivers/md/dm-vdo/indexer/index-session.c
create mode 100644 drivers/md/dm-vdo/indexer/index-session.h
create mode 100644 drivers/md/dm-vdo/indexer/index.c
create mode 100644 drivers/md/dm-vdo/indexer/index.h
create mode 100644 drivers/md/dm-vdo/indexer/indexer.h
create mode 100644 drivers/md/dm-vdo/indexer/io-factory.c
create mode 100644 drivers/md/dm-vdo/indexer/io-factory.h
create mode 100644 drivers/md/dm-vdo/indexer/open-chapter.c
create mode 100644 drivers/md/dm-vdo/indexer/open-chapter.h
create mode 100644 drivers/md/dm-vdo/indexer/radix-sort.c
create mode 100644 drivers/md/dm-vdo/indexer/radix-sort.h
create mode 100644 drivers/md/dm-vdo/indexer/sparse-cache.c
create mode 100644 drivers/md/dm-vdo/indexer/sparse-cache.h
create mode 100644 drivers/md/dm-vdo/indexer/volume-index.c
create mode 100644 drivers/md/dm-vdo/indexer/volume-index.h
create mode 100644 drivers/md/dm-vdo/indexer/volume.c
create mode 100644 drivers/md/dm-vdo/indexer/volume.h
create mode 100644 drivers/md/dm-vdo/int-map.c
create mode 100644 drivers/md/dm-vdo/int-map.h
create mode 100644 drivers/md/dm-vdo/io-submitter.c
create mode 100644 drivers/md/dm-vdo/io-submitter.h
create mode 100644 drivers/md/dm-vdo/logger.c
create mode 100644 drivers/md/dm-vdo/logger.h
create mode 100644 drivers/md/dm-vdo/logical-zone.c
create mode 100644 drivers/md/dm-vdo/logical-zone.h
create mode 100644 drivers/md/dm-vdo/memory-alloc.c
create mode 100644 drivers/md/dm-vdo/memory-alloc.h
create mode 100644 drivers/md/dm-vdo/message-stats.c
create mode 100644 drivers/md/dm-vdo/message-stats.h
create mode 100644 drivers/md/dm-vdo/murmurhash3.c
create mode 100644 drivers/md/dm-vdo/murmurhash3.h
create mode 100644 drivers/md/dm-vdo/numeric.h
create mode 100644 drivers/md/dm-vdo/packer.c
create mode 100644 drivers/md/dm-vdo/packer.h
create mode 100644 drivers/md/dm-vdo/permassert.c
create mode 100644 drivers/md/dm-vdo/permassert.h
create mode 100644 drivers/md/dm-vdo/physical-zone.c
create mode 100644 drivers/md/dm-vdo/physical-zone.h
create mode 100644 drivers/md/dm-vdo/priority-table.c
create mode 100644 drivers/md/dm-vdo/priority-table.h
create mode 100644 drivers/md/dm-vdo/recovery-journal.c
create mode 100644 drivers/md/dm-vdo/recovery-journal.h
create mode 100644 drivers/md/dm-vdo/repair.c
create mode 100644 drivers/md/dm-vdo/repair.h
create mode 100644 drivers/md/dm-vdo/slab-depot.c
create mode 100644 drivers/md/dm-vdo/slab-depot.h
create mode 100644 drivers/md/dm-vdo/statistics.h
create mode 100644 drivers/md/dm-vdo/status-codes.c
create mode 100644 drivers/md/dm-vdo/status-codes.h
create mode 100644 drivers/md/dm-vdo/string-utils.c
create mode 100644 drivers/md/dm-vdo/string-utils.h
create mode 100644 drivers/md/dm-vdo/thread-device.c
create mode 100644 drivers/md/dm-vdo/thread-device.h
create mode 100644 drivers/md/dm-vdo/thread-registry.c
create mode 100644 drivers/md/dm-vdo/thread-registry.h
create mode 100644 drivers/md/dm-vdo/thread-utils.c
create mode 100644 drivers/md/dm-vdo/thread-utils.h
create mode 100644 drivers/md/dm-vdo/time-utils.h
create mode 100644 drivers/md/dm-vdo/types.h
create mode 100644 drivers/md/dm-vdo/vdo.c
create mode 100644 drivers/md/dm-vdo/vdo.h
create mode 100644 drivers/md/dm-vdo/vio.c
create mode 100644 drivers/md/dm-vdo/vio.h
create mode 100644 drivers/md/dm-vdo/wait-queue.c
create mode 100644 drivers/md/dm-vdo/wait-queue.h
