[git pull] device mapper changes for 5.18

From: Mike Snitzer <snitzer@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: dm-devel@redhat.com, linux-block@vger.kernel.org,
	Alasdair G Kergon <agk@redhat.com>,
	Aashish Sharma <shraash@google.com>,
	Barry Song <21cnbao@gmail.com>, Christoph Hellwig <hch@lst.de>,
	Colin Ian King <colin.i.king@gmail.com>,
	Jordy Zomer <jordy@jordyzomer.github.io>,
	Kirill Tkhai <ktkhai@virtuozzo.com>,
	Ming Lei <ming.lei@redhat.com>, Thore Sommer <public@thson.de>,
	Tom Rix <trix@redhat.com>, Wang Qing <wangqing@vivo.com>,
	Zhiqiang Liu <liuzhiqiang26@huawei.com>
Subject: [git pull] device mapper changes for 5.18
Date: Wed, 23 Mar 2022 16:38:49 -0400	[thread overview]
Message-ID: <YjuFWbp0vdh/7c5A@redhat.com> (raw)

Hi Linus,

These changes build on Jens' for-5.18 block tree because of various
changes that impacted DM and DM's need for bio_start_io_acct_time().

The following changes since commit bcd2be763252f3a4d5fc4d6008d4d96c601ee74b:

  block/bfq_wf2q: correct weight to ioprio (2022-02-16 20:09:14 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.18/dm-changes

for you to fetch changes up to 4d7bca13dd9a5033174b0735056c5658cb893e76:

  dm: consolidate spinlocks in dm_io struct (2022-03-21 14:15:36 -0400)

Please pull, thanks.
Mike

----------------------------------------------------------------
- Significant refactoring and fixing of how DM core does bio-based IO
  accounting with focus on fixing wildly inaccurate IO stats for
  dm-crypt (and other DM targets that defer bio submission in their
  own workqueues). End result is proper IO accounting, made possible
  by targets being updated to use the new dm_submit_bio_remap()
  interface.

- Add hipri bio polling support (REQ_POLLED) to bio-based DM.

- Reduce dm_io and dm_target_io structs so that a single dm_io (which
  contains dm_target_io and first clone bio) weighs in at 256 bytes.
  For reference the bio struct is 128 bytes.

- Various other small cleanups, fixes or improvements in DM core and
  targets.

- Update MAINTAINERS with my kernel.org email address to allow
  distinction between my "upstream" and "Red" Hats.

----------------------------------------------------------------
Aashish Sharma (1):
      dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS

Barry Song (1):
      dm io: remove stale comment block for dm_io()

Christoph Hellwig (2):
      dm-zoned: remove the ->name field in struct dmz_dev
      dm: stop using bdevname

Colin Ian King (1):
      dm cache policy smq: make static read-only array table const

Jordy Zomer (1):
      dm ioctl: prevent potential spectre v1 gadget

Kirill Tkhai (1):
      dm: fix use-after-free in dm_cleanup_zoned_dev()

Mike Snitzer (33):
      dm: interlock pending dm_io and dm_wait_for_bios_completion
      dm: fix double accounting of flush with data
      dm stats: fix too short end duration_ns when using precise_timestamps
      dm: eliminate copying of dm_io fields in dm_io_dec_pending
      dm: reorder members in mapped_device struct
      dm: rename split functions
      dm: fold __clone_and_map_data_bio into __split_and_process_bio
      dm: refactor dm_split_and_process_bio a bit
      dm: reduce code duplication in __map_bio
      dm: remove impossible BUG_ON in __send_empty_flush
      dm: remove unused mapped_device argument from free_tio
      dm: remove legacy code only needed before submit_bio recursion
      dm: record old_sector in dm_target_io before calling map function
      dm: move duplicate code from callers of alloc_tio into alloc_tio
      dm: reduce dm_io and dm_target_io struct sizes
      dm: flag clones created by __send_duplicate_bios
      dm: add dm_submit_bio_remap interface
      dm crypt: use dm_submit_bio_remap
      dm delay: use dm_submit_bio_remap
      dm: requeue IO if mapping table not yet available
      dm: remove unnecessary local variables in __bind
      dm mpath: use DMINFO instead of printk with KERN_INFO
      dm: add WARN_ON_ONCE to dm_submit_bio_remap
      dm thin: use dm_submit_bio_remap
      dm: simplify dm_sumbit_bio_remap interface
      dm cache: use dm_submit_bio_remap
      dm: factor out dm_io_complete
      dm: return void from __send_empty_flush
      dm: update email address in MAINTAINERS
      dm: switch dm_io booleans over to proper flags
      dm: switch dm_target_io booleans over to proper flags
      dm: reduce size of dm_io and dm_target_io structs
      dm: consolidate spinlocks in dm_io struct

Ming Lei (2):
      block: add ->poll_bio to block_device_operations
      dm: support bio polling

Thore Sommer (1):
      dm ima: fix wrong length calculation for no_data string

Tom Rix (1):
      dm: cleanup double word in comment

Wang Qing (1):
      dm thin: use time_is_before_jiffies instead of open coding it

Zhiqiang Liu (1):
      dm thin metadata: remove unused dm_thin_remove_block and __remove

 MAINTAINERS                      |   2 +-
 block/blk-core.c                 |  14 +-
 block/genhd.c                    |   4 +
 drivers/md/dm-cache-policy-smq.c |   4 +-
 drivers/md/dm-cache-target.c     |  17 +-
 drivers/md/dm-clone-target.c     |  10 +-
 drivers/md/dm-core.h             |  99 ++++--
 drivers/md/dm-crypt.c            |  15 +-
 drivers/md/dm-delay.c            |   5 +-
 drivers/md/dm-ima.c              |   6 +-
 drivers/md/dm-io.c               |   8 -
 drivers/md/dm-ioctl.c            |   2 +
 drivers/md/dm-mpath.c            |   5 +-
 drivers/md/dm-rq.c               |   7 +-
 drivers/md/dm-stats.c            |  34 +-
 drivers/md/dm-stats.h            |  11 +-
 drivers/md/dm-table.c            |  57 +++-
 drivers/md/dm-thin-metadata.c    |  28 --
 drivers/md/dm-thin-metadata.h    |   1 -
 drivers/md/dm-thin.c             |  15 +-
 drivers/md/dm-zoned-metadata.c   |   4 +-
 drivers/md/dm-zoned-target.c     |   1 -
 drivers/md/dm-zoned.h            |   9 +-
 drivers/md/dm.c                  | 673 ++++++++++++++++++++++++++-------------
 include/linux/blkdev.h           |   2 +
 include/linux/device-mapper.h    |   9 +-
 include/uapi/linux/dm-ioctl.h    |   4 +-
 27 files changed, 685 insertions(+), 361 deletions(-)