Paolo Valente fb80a18584 block, bfq: move forward the getting of an extra ref in bfq_bfqq_move ... [ Upstream commit fd1bb3ae54 ] Commit ecedd3d7e1 ("block, bfq: get extra ref to prevent a queue from being freed during a group move") gets an extra reference to a bfq_queue before possibly deactivating it (temporarily), in bfq_bfqq_move(). This prevents the bfq_queue from disappearing before being reactivated in its new group. Yet, the bfq_queue may also be expired (i.e., its service may be stopped) before the bfq_queue is deactivated. And also an expiration may lead to a premature freeing. This commit fixes this issue by simply moving forward the getting of the extra reference already introduced by commit ecedd3d7e1 ("block, bfq: get extra ref to prevent a queue from being freed during a group move"). Reported-by: cki-project@redhat.com Tested-by: cki-project@redhat.com Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-04-17 10:50:02 +02:00
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partitions
badblocks.c
bfq-cgroup.c	block, bfq: move forward the getting of an extra ref in bfq_bfqq_move	2020-04-17 10:50:02 +02:00
bfq-iosched.c	block, bfq: remove ifdefs from around gets/puts of bfq groups	2020-03-12 13:00:32 +01:00
bfq-iosched.h	block, bfq: remove ifdefs from around gets/puts of bfq groups	2020-03-12 13:00:32 +01:00
bfq-wf2q.c	block, bfq: get a ref to a group when adding it to a service tree	2020-03-12 13:00:32 +01:00
bio-integrity.c	block: fix memleak of bio integrity data	2020-01-26 10:01:09 +01:00
bio.c	block: fix memleak of bio integrity data	2020-01-26 10:01:09 +01:00
blk-cgroup.c	blkcg: make blkcg_print_stat() print stats only for online blkgs	2019-11-06 17:08:38 -07:00
blk-core.c	block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT	2020-01-12 12:21:37 +01:00
blk-exec.c
blk-flush.c	blk-mq: insert passthrough request into hctx->dispatch directly	2020-03-21 08:11:52 +01:00
blk-integrity.c	block: centralize PI remapping logic to the block layer	2019-09-17 20:03:49 -06:00
blk-ioc.c
blk-iocost.c	blk-iocost: fix incorrect vtime comparison in iocg_is_idle()	2020-03-18 07:17:52 +01:00
blk-iolatency.c	blkcg: s/RQ_QOS_CGROUP/RQ_QOS_LATENCY/	2019-08-28 21:17:08 -06:00
blk-lib.c
blk-map.c	block: fix memleak when __blk_rq_map_user_iov() is failed	2020-01-12 12:21:43 +01:00
blk-merge.c
blk-mq-cpumap.c
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c
blk-mq-debugfs.h
blk-mq-pci.c
blk-mq-rdma.c
blk-mq-sched.c	blk-mq: insert flush request to the front of dispatch queue	2020-03-21 08:11:57 +01:00
blk-mq-sched.h
blk-mq-sysfs.c	blk-mq: make sure that line break can be printed	2019-12-17 19:56:53 +01:00
blk-mq-tag.c
blk-mq-tag.h
blk-mq-virtio.c
blk-mq.c	blk-mq: Keep set->nr_hw_queues and set->map[].nr_queues in sync	2020-04-13 10:48:14 +02:00
blk-mq.h	blk-mq: insert passthrough request into hctx->dispatch directly	2020-03-21 08:11:52 +01:00
blk-pm.c	block: bypass blk_set_runtime_active for uninitialized q->dev	2019-09-12 07:11:56 -06:00
blk-pm.h
blk-rq-qos.c	blk-wbt: fix performance regression in wbt scale_up/scale_down	2019-10-06 09:26:41 -06:00
blk-rq-qos.h	blk-rq-qos: fix first node deletion of rq_qos_del()	2019-10-15 10:13:13 -06:00
blk-settings.c	block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices	2020-04-17 10:50:01 +02:00
blk-softirq.c
blk-stat.c
blk-stat.h
blk-sysfs.c	rq-qos: get rid of redundant wbt_update_limits()	2019-09-27 01:13:10 -06:00
blk-throttle.c	block: make rq sector size accessible for block stats	2019-09-15 16:02:08 -06:00
blk-timeout.c
blk-wbt.c	blk-wbt: fix performance regression in wbt scale_up/scale_down	2019-10-06 09:26:41 -06:00
blk-wbt.h	block/rq_qos: implement rq_qos_ops->queue_depth_changed()	2019-08-28 21:17:07 -06:00
blk-zoned.c
blk.h	block: fix memleak of bio integrity data	2020-01-26 10:01:09 +01:00
bounce.c
bsg-lib.c	block: Fix the type of 'sts' in bsg_queue_rq()	2020-01-23 08:22:44 +01:00
bsg.c
cmdline-parser.c
compat_ioctl.c	compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES	2020-01-09 10:19:58 +01:00
elevator.c	block: Fix elv_support_iosched()	2019-10-14 13:54:09 -06:00
genhd.c	block: Delay default elevator initialization	2019-09-05 19:52:34 -06:00
ioctl.c
ioprio.c
Kconfig	blkcg: implement blk-iocost	2019-08-28 21:17:12 -06:00
Kconfig.iosched
kyber-iosched.c
Makefile	blkcg: implement blk-iocost	2019-08-28 21:17:12 -06:00
mq-deadline.c	block: Introduce elevator features	2019-09-05 19:52:33 -06:00
opal_proto.h	block: sed-opal: Removed duplicate OPAL_METHOD_LENGTH definition	2019-08-20 09:34:49 -06:00
partition-generic.c
scsi_ioctl.c
sed-opal.c	block: sed-opal: fix sparse warning: convert __be64 data	2019-10-03 14:21:32 -06:00
t10-pi.c	block: t10-pi: fix -Wswitch warning	2019-09-23 08:05:19 -06:00