device mapper fixes for 6.6-rc2

Hi Linus,

The following changes since commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d:

Linux 6.6-rc1 (2023-09-10 16:28:41 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-6.6/dm-fixes

for you to fetch changes up to a9ce385344f916cd1c36a33905e564f5581beae9:

dm: don't attempt to queue IO under RCU protection (2023-09-15 15:39:59 -0400)

Please pull, thanks.
Mike

----------------------------------------------------------------
- Fix DM core retrieve_deps() UAF race due to missing locking of a DM table's list of devices that is managed using dm_{get,put}_device.

- Revert DM core's half-baked RCU optimization if IO submitter has set REQ_NOWAIT. Can be revisited, and properly justified, after comprehensively auditing all of DM to also pass GFP_NOWAIT for any allocations if REQ_NOWAIT used.
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----------------------------------------------------------------
Jens Axboe (1):
dm: don't attempt to queue IO under RCU protection

Mikulas Patocka (1):
dm: fix a race condition in retrieve_deps

 drivers/md/dm-core.h  |  1 +
 drivers/md/dm-ioctl.c |  7 ++++++-
 drivers/md/dm-table.c | 32 ++++++++++++++++++++++++--------
 drivers/md/dm.c       | 23 ++---------------------
 4 files changed, 33 insertions(+), 30 deletions(-)

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