From: Yu Kuai <yukuai3@xxxxxxxxxx> Changes in v2: - Change the title from '-next' to 'md-6.8'; - Add Acked-by tag from Mike; - Add Singed-off-by tag from Xiao; link to part1: https://lore.kernel.org/all/CAPhsuW7u1UKHCDOBDhD7DzOVtkGemDz_QnJ4DUq_kSN-Q3G66Q@xxxxxxxxxxxxxx/ part1 contains fixes for deadlocks for stopping sync_thread This set contains fixes: - reshape can start unexpected, cause data corruption, patch 1,5,6; - deadlocks that reshape concurrent with IO, patch 8; - a lockdep warning, patch 9; I'm running lvm2 tests with following scripts with a few rounds now, for t in `ls test/shell`; do if cat test/shell/$t | grep raid &> /dev/null; then make check T=shell/$t fi done There are no deadlocks now, there are still some fs corruption, however, it's verified there are no new failed tests compared to v6.6. Yu Kuai (9): md: don't clear MD_RECOVERY_FROZEN for new dm-raid until resume md: export helpers to stop sync_thread md: export helper md_is_rdwr() md: add a new helper reshape_interrupted() dm-raid: really frozen sync_thread during suspend md/dm-raid: don't call md_reap_sync_thread() directly dm-raid: add a new helper prepare_suspend() in md_personality dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape dm-raid: fix lockdep waring in "pers->hot_add_disk" drivers/md/dm-raid.c | 93 ++++++++++++++++++++++++++++++++++---------- drivers/md/md.c | 73 ++++++++++++++++++++++++++-------- drivers/md/md.h | 38 +++++++++++++++++- drivers/md/raid5.c | 32 ++++++++++++++- 4 files changed, 196 insertions(+), 40 deletions(-) -- 2.39.2
