On Sat, Dec 12 2020 at 4:12am -0500, Song Liu <songliubraving@xxxxxx> wrote: > 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(-) > Jens already pulled 95% of these changes no? why are you sending a pull that ignores that fact? And as I stated here: https://www.redhat.com/archives/dm-devel/2020-December/msg00253.html I don't agree with reverting commit e0910c8e4f87bb9 ("dm raid: fix discard limits for raid1 and raid10"). Espeiclaly not like you've done, given it was marked for stable any follow-on fix/revert needs to be as well. Simply changing 'struct mddev' chunk_sectors members from int to 'unsigned int' is the better way forward I think. Mike
