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[dm-devel] [git pull] device-mapper updates for 3.6



Please pull from:
 
  git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm tags/dm-3.6-changes
 
to get the following device-mapper updates for 3.6.
 
Thanks,
Alasdair

----------------------------------------------------------------
Device-mapper updates for 3.6:
- Flip the thin target into new read-only or failed modes if errors
  are detected;
- Handle chunk sizes that are not powers of two in the snapshot and
  thin targets;
- Provide a way for userspace to avoid replacing an already-loaded
  multipath hardware handler while booting;
- Reduce dm_thin_endio_hook slab size to avoid allocation failures;
- Numerous small changes and cleanups to the code.

----------------------------------------------------------------
Alasdair G Kergon (5):
      dm thin: reduce endio_hook pool size
      dm snapshot: remove redundant assignment in merge fn
      dm crypt: store crypt_config instead of dm_target struct
      dm: use bool bitfields in struct dm_target
      dm thin: commit before gathering status

Joe Thornber (38):
      dm: remove unused flush target method
      dm persistent data: remove debug space map checker
      dm thin metadata: remove pointless label from __commit_transaction
      dm thin metadata: introduce THIN_MAX_CONCURRENT_LOCKS
      dm thin: fix memory leak in process_prepared_mapping error paths
      dm thin: avoid unnecessarily breaking sharing for flushes
      dm persistent data: always unlock superblock in dm_bm_flush_and_unlock
      dm persistent data: only commit space map if index changed
      dm: allow targets to request flushes regardless of underlying device support
      dm thin: set flush_supported
      dm thin metadata: factor __setup_btree_details out of init_pmd
      dm persistent data: create new dm_block_manager struct
      dm thin metadata: stop tracking need for commit
      dm persistent data: tidy transaction manager creation fns
      dm persistent data: stop using dm_bm_unlock_move when shadowing blocks in tm
      dm thin metadata: wrap superblock locking
      dm thin metadata: rename init_pmd to __create_persistent_data_objects
      dm thin metadata: move bm creation code into create_persistent_data_objects
      dm thin metadata: factor __destroy_persistent_data out of dm_pool_metadata_close
      dm thin metadata: lift some initialisation out of __open_or_format_metadata
      dm thin metadata: factor out __write_initial_superblock
      dm thin metadata: move dm_commit_pool_metadata into __write_initial_superblock
      dm thin metadata: lift __begin_transaction out of __write_initial_superblock
      dm thin metadata: zero unused superblock uuid
      dm thin metadata: use struct dm_pool_metadata members in __open_or_format_metadata
      dm thin metadata: split __open or format metadata
      dm thin metadata: remove nr_blocks arg from __create_persistent_data_objects
      dm thin metadata: move __superblock_all_zeroes to __open_or_format_metadata
      dm thin metadata: remove create parameter from __create_persistent_data_objects
      dm thin metadata: remove duplicate pmd initialisation
      dm thin metadata: tidy up open and format error paths
      dm thin metadata: add format option to dm_pool_metadata_open
      dm thin metadata: add dm_thin_changed_this_transaction
      dm thin: reduce number of metadata commits
      dm persistent data: introduce dm_bm_set_read_only
      dm thin metadata: introduce dm_pool_metadata_set_read_only
      dm thin metadata: introduce dm_pool_abort_metadata
      dm thin: add read only and fail io modes

Jonathan E Brassow (2):
      dm raid: restructure parse_raid_params
      dm raid: move sectors_per_dev calculation

Mike Snitzer (7):
      dm thin: clean up compiler warning
      dm thin: provide specific errors for two table load failure cases
      dm: support non power of two target max_io_len
      dm stripe: support for non power of 2 chunksize
      dm thin: support for non power of 2 pool blocksize
      dm mpath: add retain_attached_hw_handler feature
      dm thin metadata: only check incompat features on open

Mikulas Patocka (10):
      dm stripe: fix size test
      dm stripe: remove stripes_mask
      dm stripe: remove minimum stripe size
      dm stripe: optimize chunk_size calculations
      dm: introduce split_discard_requests
      dm thin: split discards on block boundary
      dm thin: optimize power of two block size
      dm crypt: rename pending field
      dm crypt: move cipher data out of per_cpu struct
      dm crypt: rename struct convert_context sector field

majianpeng (1):
      dm: replace simple_strtoul

 Documentation/device-mapper/striped.txt            |    7 +-
 Documentation/device-mapper/thin-provisioning.txt  |   24 +-
 drivers/md/Kconfig                                 |    9 -
 drivers/md/dm-crypt.c                              |  219 +++---
 drivers/md/dm-delay.c                              |    2 +-
 drivers/md/dm-exception-store.c                    |   13 +-
 drivers/md/dm-flakey.c                             |    2 +-
 drivers/md/dm-ioctl.c                              |    5 +-
 drivers/md/dm-linear.c                             |    2 +-
 drivers/md/dm-mpath.c                              |   49 +-
 drivers/md/dm-raid.c                               |   56 +-
 drivers/md/dm-raid1.c                              |   10 +-
 drivers/md/dm-snap.c                               |   34 +-
 drivers/md/dm-stripe.c                             |   87 ++-
 drivers/md/dm-table.c                              |    3 +
 drivers/md/dm-thin-metadata.c                      |  769 ++++++++++++--------
 drivers/md/dm-thin-metadata.h                      |   25 +-
 drivers/md/dm-thin.c                               |  542 ++++++++++----
 drivers/md/dm-verity.c                             |    2 +-
 drivers/md/dm.c                                    |   40 +-
 drivers/md/dm.h                                    |    5 +
 drivers/md/persistent-data/Makefile                |    1 -
 drivers/md/persistent-data/dm-block-manager.c      |  105 +--
 drivers/md/persistent-data/dm-block-manager.h      |   21 +-
 drivers/md/persistent-data/dm-space-map-checker.c  |  446 ------------
 drivers/md/persistent-data/dm-space-map-checker.h  |   26 -
 drivers/md/persistent-data/dm-space-map-common.c   |   12 +-
 drivers/md/persistent-data/dm-space-map-common.h   |    1 +
 drivers/md/persistent-data/dm-space-map-disk.c     |   34 +-
 .../md/persistent-data/dm-transaction-manager.c    |   91 +--
 .../md/persistent-data/dm-transaction-manager.h    |   11 +-
 include/linux/device-mapper.h                      |   29 +-
 include/linux/dm-ioctl.h                           |    6 +-
 33 files changed, 1373 insertions(+), 1315 deletions(-)
 delete mode 100644 drivers/md/persistent-data/dm-space-map-checker.c
 delete mode 100644 drivers/md/persistent-data/dm-space-map-checker.h


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