Hi Jens, Please consider pulling the following changes on top of tag block-5.10-2020-12-05. This is to fix raid10 data corruption [1] in 5.10-rc7. Tests run on this change: 1. md raid10: tested discard on raid10 device works properly (zero mismatch_cnt). 2. dm raid10: tested discard_granularity and discard_max_bytes was set properly. Thanks, Song [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/ The following changes since commit 7e7986f9d3ba69a7375a41080a1f8c8012cb0923: block: use gcd() to fix chunk_sectors limit stacking (2020-12-01 11:02:55 -0700) are available in the Git repository at: ssh://git@xxxxxxxxxxxxxxxxxxx/pub/scm/linux/kernel/git/song/md.git md-fixes for you to fetch changes up to 0d5c7b890229f8a9bb4b588b34ffe70c62691143: Revert "md: add md_submit_discard_bio() for submitting discard bio" (2020-12-12 00:51:41 -0800) ---------------------------------------------------------------- Song Liu (7): Revert "dm raid: remove unnecessary discard limits for raid10" Revert "dm raid: fix discard limits for raid1 and raid10" Revert "md/raid10: improve discard request for far layout" Revert "md/raid10: improve raid10 discard request" Revert "md/raid10: pull codes that wait for blocked dev into one function" Revert "md/raid10: extend r10bio devs to raid disks" Revert "md: add md_submit_discard_bio() for submitting discard bio" drivers/md/dm-raid.c | 9 +++++ drivers/md/md.c | 20 ---------- drivers/md/md.h | 2 - drivers/md/raid0.c | 14 ++++++- drivers/md/raid10.c | 423 +++++++++++++++++++++++++++++------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ drivers/md/raid10.h | 1 - 6 files changed, 78 insertions(+), 391 deletions(-)