device mapper changes for 6.2

Hi Linus,

The following changes since commit b7b275e60bcd5f89771e865a8239325f86d9927d:

Linux 6.1-rc7 (2022-11-27 13:31:48 -0800)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-6.2/dm-changes

for you to fetch changes up to 7991dbff6849f67e823b7cc0c15e5a90b0549b9f:

dm thin: Use last transaction's pmd->root when commit failed (2022-12-08 12:17:09 -0500)

Please pull, thanks.
Mike

----------------------------------------------------------------
- Fix use-after-free races due to missing resource cleanup during DM target destruction in DM targets: thin-pool, cache, integrity and clone.

- Fix ABBA deadlocks in DM thin-pool and cache targets due to their use of a bufio client (that has a shrinker whose locking can cause the incorrect locking order).

- Fix DM cache target to set its needs_check flag after first aborting the metadata (whereby using reset persistent-data objects to update the superblock with, otherwise the superblock update could be dropped due to aborting metadata). This was found with code-inspection when comparing with the equivalent in DM thinp code.

- Fix DM thin-pool's presume to continue resuming the device even if the pool in is fail mode -- otherwise bios may never be failed up the IO stack (which will prevent resetting the thin-pool target via table reload)

- Fix DM thin-pool's metadata to use proper btree root (from previous transaction) if metadata commit failed.

- Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to wait for the specified device before continuing with its DM target initialization.

----------------------------------------------------------------
Luo Meng (5):
dm thin: Fix UAF in run_timer_softirq()
dm clone: Fix UAF in clone_dtr()
dm cache: Fix UAF in destroy()
dm integrity: Fix UAF in dm_integrity_dtr()
dm thin: resume even if in FAIL mode

Mike Snitzer (2):
dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort dm cache: set needs_check flag after aborting metadata

Mikulas Patocka (2):
dm ioctl: a small code cleanup in list_version_get_info dm ioctl: fix a couple ioctl codes

Peter Korsgaard (1):
dm init: add dm-mod.waitfor to wait for asynchronously probed block devices

Zhihao Cheng (2):
dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata dm thin: Use last transaction's pmd->root when commit failed

 .../admin-guide/device-mapper/dm-init.rst          |  8 +++
 drivers/md/dm-cache-metadata.c                     | 54 ++++++++++++++++---
 drivers/md/dm-cache-target.c                       | 11 ++--
 drivers/md/dm-clone-target.c                       |  1 +
 drivers/md/dm-init.c                               | 22 +++++++-
 drivers/md/dm-integrity.c                          |  2 +
 drivers/md/dm-ioctl.c                              |  6 +--
 drivers/md/dm-thin-metadata.c                      | 60 +++++++++++++++++++---
 drivers/md/dm-thin.c                               | 18 +++++--
 9 files changed, 154 insertions(+), 28 deletions(-)

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