Hi,
在 2023/05/29 21:20, Yu Kuai 写道:
From: Yu Kuai <yuku...@huawei.com>
Changes in v2:
- rebase for the latest md-next
Patch 1 revert the commit because it will cause MD_RECOVERY_RUNNING to be
cleared while sync_thread is still running. The deadlock this patch tries
to fix will be fixed by patch 2-5.
Patch 6 enhance checking to prevent MD_RECOVERY_RUNNING to be cleared
while sync_thread is still running.
Any suggestions on this patchset? I already sent regression test
for the deadlock problem for both raid10 and raid456.
Thanks,
Kuai
Yu Kuai (6):
Revert "md: unlock mddev before reap sync_thread in action_store"
md: refactor action_store() for 'idle' and 'frozen'
md: add a mutex to synchronize idle and frozen in action_store()
md: refactor idle/frozen_sync_thread() to fix deadlock
md: wake up 'resync_wait' at last in md_reap_sync_thread()
md: enhance checking in md_check_recovery()
drivers/md/dm-raid.c | 1 -
drivers/md/md.c | 124 +++++++++++++++++++++++++++++--------------
drivers/md/md.h | 5 ++
3 files changed, 88 insertions(+), 42 deletions(-)
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