device mapper fixes for 5.9-rc4

Hi Linus,

The following changes since commit f75aef392f869018f78cfedf3c320a6b3fcfda6b:

Linux 5.9-rc3 (2020-08-30 16:01:54 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-5.9/dm-fixes

for you to fetch changes up to 3a653b205f29b3f9827a01a0c88bfbcb0d169494:

dm thin metadata: Fix use-after-free in dm_bm_set_read_only (2020-09-02 13:38:40 -0400)

Please pull, thanks!
Mike

----------------------------------------------------------------
- DM writecache fix to allow dax_direct_access() to partitioned pmem devices.

- DM multipath fix to avoid any Path Group initialization if 'pg_init_in_progress' isn't set.

- DM crypt fix to use DECLARE_CRYPTO_WAIT() for onstack wait structures.

- DM integrity fix to properly check integrity after device creation when in bitmap mode.

- DM thinp and cache target __create_persistent_data_objects() fixes to reset the metadata's dm_block_manager pointer from PTR_ERR to NULL before returning from error path.

- DM persistent-data block manager fix to guard against dm_block_manager NULL pointer dereference in dm_bm_is_read_only() and update various opencoded bm->read_only checks to use dm_bm_is_read_only() instead.

----------------------------------------------------------------
Damien Le Moal (1):
dm crypt: Initialize crypto wait structures

Mike Snitzer (1):
dm mpath: fix racey management of PG initialization

Mikulas Patocka (2):
dm writecache: handle DAX to partitions on persistent memory correctly dm integrity: fix error reporting in bitmap mode after creation

Ye Bin (3):

      dm cache metadata: Avoid returning cmd->bm wild pointer on error
      dm thin metadata:  Avoid returning cmd->bm wild pointer on error
      dm thin metadata: Fix use-after-free in dm_bm_set_read_only

 drivers/md/dm-cache-metadata.c                |  8 ++++++--
 drivers/md/dm-crypt.c                         |  4 ++--
 drivers/md/dm-integrity.c                     | 12 ++++++++++++
 drivers/md/dm-mpath.c                         | 22 +++++++++++++++-------
 drivers/md/dm-thin-metadata.c                 | 10 +++++++---
 drivers/md/dm-writecache.c                    | 12 ++++++++++--
 drivers/md/persistent-data/dm-block-manager.c | 14 ++++++++------
 7 files changed, 60 insertions(+), 22 deletions(-)