Linux kernel bug fix: block: drain queue before waiting for q_usage_counter becoming zero
Subsystem: block (block/blk-core.c)
Bug type: hang, severity: medium
Files changed: block/blk-core.c;block/blk-mq.c;block/blk.h
Introduced by Ming Lei on 2017-11-10 19:53:25 -0700; fixed by Ming Lei on 2018-01-05 09:09:48 -0700 (lifetime: 55 days)