Linux kernel bug fix: blk: Fix lock inversion between ioc lock and bfqd lock
Subsystem: block (block/mq-deadline-main.c)
Bug type: lock-order, severity: medium
Files changed: block/bfq-iosched.c;block/blk-merge.c;block/blk-mq-sched.c;block/blk-mq-sched.h;block/blk-mq.h;block/blk.h;block/elevator.c;block/mq-deadline-main.c;include/linux/elevator.h
Introduced by Paolo Valente on 2017-04-19 08:29:02 -0600; fixed by Jan Kara on 2021-06-24 18:43:55 -0600 (lifetime: 1527 days)