Hi, Dongmao
I think you are using workqueue the wrong way in two places.
1)
WQ_NON_REENTRANT is deprecated. You should remove it.
> + if (lc->integrated_flush) {
> + lc->dmlog_wq = alloc_workqueue("dmlogd", WQ_NON_REENTRANT | WQ_MEM_RECLAIM, 0);
2)
destory_workqueue first calls drain_workqueue which
then calls flush_workqueue. You should remove the first line of these.
> + flush_workqueue(lc->dmlog_wq);
> + destroy_workqueue(lc->dmlog_wq);
Akira
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