[dm-devel] [git pull] device mapper changes for 4.17
Mike Snitzer
snitzer at redhat.com
Thu Apr 5 15:19:42 UTC 2018
Hi Linus,
There is one merge conflict with the 4.17 block tree to be aware of,
please see this patch that linux-next has been carrying:
https://lkml.org/lkml/2018/3/26/768
The following changes since commit da5dadb4f11660ca67580cd4a7420161266d6254:
dm: fix dropped return code from dm_get_bdev_for_ioctl (2018-03-29 23:31:32 -0400)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-4.17/dm-changes
for you to fetch changes up to 5bd5e8d891c1fd2d966a7e2c26f0452d22410683:
dm: remove fmode_t argument from .prepare_ioctl hook (2018-04-04 12:12:39 -0400)
Please pull, thanks!
Mike
----------------------------------------------------------------
- DM core passthrough ioctl fix to retain reference to DM table, and
that table's block devices, while issuing the ioctl to one of those
block devices.
- DM core passthrough ioctl fix to _not_ override the fmode_t used to
issue the ioctl. Overriding by using the fmode_t that the block
device was originally open with during DM table load is a liability.
- Add DM core support for secure erase forwarding and update the DM
linear and DM striped targets to support them.
- A DM core 4.16 stable fix to allow abnormal IO (e.g. discard, write
same, write zeroes) for targets that make use of the non-splitting IO
variant (as is done for multipath or thinp when layered directly on
NVMe).
- Allow DM targets to return a payload in response to a DM message that
they are sent. This is useful for DM targets that would like to
provide statistics data in response to DM messages.
- Update DM bufio to support non-power-of-2 block sizes. Numerous other
related changes prepare the DM bufio code for this support.
- Fix DM crypt to use a bounded amount of memory across the entire
system. This is to avoid OOM that can otherwise occur in response to
certain pathological IO workloads (e.g. discarding a large DM crypt
device).
- Add a 'check_at_most_once' feature to the DM verity target to allow
verity to be used on mobile devices that have very limited resources.
- Fix the DM integrity target to fail early if a keyed algorithm
(e.g. HMAC) is to be used but the key isn't set.
- Add non-power-of-2 support to the DM unstripe target.
- Eliminate the use of a Variable Length Array in the DM stripe target.
- Update the DM log-writes target to record metadata (REQ_META flag).
- DM raid fixes for its nosync status and some variable range issues.
----------------------------------------------------------------
Denis Semakin (1):
dm: add support for secure erase forwarding
Heinz Mauelshagen (6):
dm unstripe: support non-power-of-2 chunk size
dm unstripe: add "dm-unstriped" module alias
dm unstripe: remove superfluous module init error path message
dm unstripe: remove unnecessary header includes
dm raid: fix nosync status
dm raid: fix parse_raid_params() variable range issue
Mike Snitzer (4):
dm: allow targets to return output from messages they are sent
dm: backfill abnormal IO support to non-splitting IO submission
dm: hold DM table for duration of ioctl rather than use blkdev_get
dm: remove fmode_t argument from .prepare_ioctl hook
Mikulas Patocka (10):
dm crypt: limit the number of allocated pages
dm bufio: delete outdated comment
dm bufio: move dm-bufio.h to include/linux/
dm bufio: get rid of slab cache name allocations
dm bufio: remove code that merges slab caches
dm bufio: relax alignment constraint on slab cache
dm bufio: reorder fields in dm_buffer structure
dm bufio: use slab cache for dm_buffer structure allocations
dm bufio: support non-power-of-two block sizes
dm bufio: don't embed a bio in the dm_buffer structure
Milan Broz (1):
dm integrity: fail early if required HMAC key is not available
Patrik Torstensson (1):
dm verity: add 'check_at_most_once' option to only validate hashes once
Qu Wenruo (1):
dm log writes: record metadata flag for better flags record
Tycho Andersen (1):
dm stripe: get rid of a Variable Length Array (VLA)
Wang Sheng-Hui (2):
dm: remove unused macro DM_MOD_NAME_SIZE
dm mpath: use DM_MAPIO_SUBMITTED instead of magic number 0 in process_queued_bios()
weiyongjun (A) (1):
dm verity: make verity_for_io_block static
Documentation/device-mapper/verity.txt | 11 +
drivers/md/dm-bufio.c | 279 +++++++++++---------------
drivers/md/dm-cache-target.c | 3 +-
drivers/md/dm-crypt.c | 69 ++++++-
drivers/md/dm-era-target.c | 3 +-
drivers/md/dm-flakey.c | 3 +-
drivers/md/dm-integrity.c | 5 +-
drivers/md/dm-ioctl.c | 2 +-
drivers/md/dm-linear.c | 4 +-
drivers/md/dm-log-writes.c | 17 +-
drivers/md/dm-mpath.c | 8 +-
drivers/md/dm-raid.c | 33 ++-
drivers/md/dm-snap-persistent.c | 2 +-
drivers/md/dm-stripe.c | 12 +-
drivers/md/dm-switch.c | 7 +-
drivers/md/dm-table.c | 31 +++
drivers/md/dm-target.c | 2 -
drivers/md/dm-thin.c | 3 +-
drivers/md/dm-unstripe.c | 37 ++--
drivers/md/dm-verity-target.c | 71 ++++++-
drivers/md/dm-verity.h | 3 +-
drivers/md/dm-zoned-target.c | 3 +-
drivers/md/dm.c | 145 +++++++------
drivers/md/persistent-data/dm-block-manager.c | 2 +-
include/linux/device-mapper.h | 12 +-
{drivers/md => include/linux}/dm-bufio.h | 4 +-
include/uapi/linux/dm-ioctl.h | 4 +-
27 files changed, 465 insertions(+), 310 deletions(-)
rename {drivers/md => include/linux}/dm-bufio.h (98%)
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