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* Merge tag 'for-5.4/block-2019-09-16' of git://git.kernel.dk/linux-blockLinus Torvalds2019-09-1830-342/+3274
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| * block: also check RQF_STATS in blk_mq_need_time_stamp()Hou Tao2019-09-161-3/+3
| * block: make rq sector size accessible for block statsHou Tao2019-09-162-7/+7
| * bfq: Fix bfq linkage errorPavel Begunkov2019-09-141-0/+2
| * block: fix race between switching elevator and removing queuesMing Lei2019-09-121-3/+5
| * block: bypass blk_set_runtime_active for uninitialized q->devStanley Chu2019-09-121-5/+7
| * iocost_monitor: Report debtTejun Heo2019-09-101-3/+3
| * blk-iocost: Don't let merges push vtime into the futureTejun Heo2019-09-101-7/+18
| * blk-iocost: Account force-charged overage in absolute vtimeTejun Heo2019-09-101-7/+55
| * blk-iocost: Fix incorrect operation order during iocg freeTejun Heo2019-09-101-3/+3
| * bfq: Add per-device weightFam Zheng2019-09-062-11/+87
| * bfq: Extract bfq_group_set_weight from bfq_io_set_weight_legacyFam Zheng2019-09-061-28/+32
| * bfq: Fix the missing barrier in __bfq_entity_update_weight_prioFam Zheng2019-09-061-0/+2
| * block: fix elevator_get_by_features()Jens Axboe2019-09-061-6/+7
| * block: Delay default elevator initializationDamien Le Moal2019-09-063-3/+25
| * block: Improve default elevator selectionDamien Le Moal2019-09-061-7/+44
| * block: Introduce elevator featuresDamien Le Moal2019-09-063-11/+55
| * block: Change elevator_init_mq() to always succeedDamien Le Moal2019-09-063-19/+14
| * block: Cleanup elevator_init_mq() useDamien Le Moal2019-09-062-15/+16
| * block: elevator.c: Remove now unused elevator= argumentMarcos Paulo de Souza2019-09-031-14/+0
| * block: mq-deadline: Fix queue restart handlingDamien Le Moal2019-09-031-10/+9
| * blkcg: add missing NULL check in ioc_cpd_alloc()Tejun Heo2019-08-301-1/+3
| * blkcg: fix missing free on error path of blk_iocost_init()Tejun Heo2019-08-291-0/+1
| * blkcg: add tools/cgroup/iocost_coef_gen.pyTejun Heo2019-08-291-0/+3
| * blkcg: add tools/cgroup/iocost_monitor.pyTejun Heo2019-08-291-0/+21
| * blkcg: implement blk-iocostTejun Heo2019-08-294-0/+2385
| * blk-mq: add optional request->alloc_time_nsTejun Heo2019-08-292-2/+14
| * blkcg: s/RQ_QOS_CGROUP/RQ_QOS_LATENCY/Tejun Heo2019-08-292-5/+5
| * block/rq_qos: implement rq_qos_ops->queue_depth_changed()Tejun Heo2019-08-295-15/+26
| * block/rq_qos: add rq_qos_merge()Tejun Heo2019-08-293-0/+22
| * blkcg: separate blkcg_conf_get_disk() out of blkg_conf_prep()Tejun Heo2019-08-291-19/+43
| * blkcg: make ->cpd_init_fn() optionalTejun Heo2019-08-291-1/+2
| * blkcg: pass @q and @blkcg into blkcg_pol_alloc_pd_fn()Tejun Heo2019-08-294-9/+14
| * block: split .sysfs_lock into two locksMing Lei2019-08-275-33/+83
| * block: add helper for checking if queue is registeredMing Lei2019-08-273-4/+4
| * blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueueMing Lei2019-08-271-7/+0
| * block: don't hold q->sysfs_lock in elevator_init_mqMing Lei2019-08-271-9/+5
| * block: Remove blk_mq_register_dev()Bart Van Assche2019-08-271-11/+0
| * block: move same page handling from __bio_add_pc_page to the callersChristoph Hellwig2019-08-221-10/+10
| * block: create a bio_try_merge_pc_page helperChristoph Hellwig2019-08-221-24/+10
| * block: improve the gap check in __bio_add_pc_pageChristoph Hellwig2019-08-221-7/+7
| * block: sed-opal: Removed duplicate OPAL_METHOD_LENGTH definitionRevanth Rajashekar2019-08-201-2/+0
| * block: sed-opal: Remove always false conditional statementRevanth Rajashekar2019-08-201-4/+0
| * block: sed-opal: Add/remove spacesRevanth Rajashekar2019-08-202-6/+42
| * block: remove struct request_queue queue_headJunxiao Bi2019-08-191-1/+0
| * block: annotate refault stalls from IO submissionJohannes Weiner2019-08-142-1/+25
| * blk-mq: Fix memory leak in blk_mq_init_allocated_queue error handlingzhengbin2019-08-121-3/+6
| * block: stop exporting bio_map_kernHans Holmberg2019-08-061-1/+0
| * blk-mq: balance mapping between present CPUs and queuesMing Lei2019-08-051-7/+22
| * blk-zoned: implement REQ_OP_ZONE_RESET_ALLChaitanya Kulkarni2019-08-052-0/+44