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Jan Kara 165a5e22fa block: Move bdi_unregister() to del_gendisk() 
Commit 6cd18e711d "block: destroy bdi before blockdev is
unregistered." moved bdi unregistration (at that time through
bdi_destroy()) from blk_release_queue() to blk_cleanup_queue() because
it needs to happen before blk_unregister_region() call in del_gendisk()
for MD. SCSI though will free up the device number from sd_remove()
called through a maze of callbacks from device_del() in
__scsi_remove_device() before blk_cleanup_queue() and thus similar races
as described in 6cd18e711d can happen for SCSI as well as reported by
Omar [1].

Moving bdi_unregister() to del_gendisk() works for MD and fixes the
problem for SCSI since del_gendisk() gets called from sd_remove() before
freeing the device number.

This also makes device_add_disk() (calling bdi_register_owner()) more
symmetric with del_gendisk().

[1] http://marc.info/?l=linux-block&m=148554717109098&w=2

Tested-by: Lekshmi Pillai <lekshmicpillai@in.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Tested-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-02 16:08:35 -07:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-02-24 14:42:19 -08:00
blk-cgroup.c blkcg: fix double free of new_blkg in blkcg_init_queue 2017-02-03 07:52:35 -07:00
blk-core.c block: Move bdi_unregister() to del_gendisk() 2017-03-02 16:08:35 -07:00
blk-exec.c block: introduce blk_rq_is_passthrough 2017-01-31 14:00:34 -07:00
blk-flush.c block: don't defer flushes on blk-mq + scheduling 2017-02-17 12:35:47 -07:00
blk-integrity.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
blk-ioc.c block: don't call ioc_exit_icq() with the queue lock held for blk-mq 2017-03-02 13:59:08 -07:00
blk-lib.c block: don't try Write Same from __blkdev_issue_zeroout 2017-02-06 09:34:46 -07:00
blk-map.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
blk-merge.c block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-debugfs.c block: use same block debugfs directory for blk-mq and blktrace 2017-02-02 10:20:16 -07:00
blk-mq-pci.c blk_mq: linux/blk-mq.h does not include all the headers it depends on 2016-09-19 08:21:51 -06:00
blk-mq-sched.c blk-mq: move update of tags->rqs to __blk_mq_alloc_request() 2017-03-02 08:56:04 -07:00
blk-mq-sched.h blk-mq-sched: separate mark hctx and queue restart operations 2017-02-23 11:55:47 -07:00
blk-mq-sysfs.c blk-mq: move debugfs_remove() of disk dir to blk_release_queue() 2017-02-02 10:20:16 -07:00
blk-mq-tag.c blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset 2017-03-02 08:56:04 -07:00
blk-mq-tag.h blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset 2017-03-02 08:56:04 -07:00
blk-mq.c blk-mq: ensure that bd->last is always set correctly 2017-03-02 14:30:51 -07:00
blk-mq.h blk-mq: kill blk_mq_set_alloc_data() 2017-03-02 08:56:04 -07:00
blk-settings.c block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
blk-softirq.c This adds a new gcc plugin named "latent_entropy". It is designed to 2016-10-15 10:03:15 -07:00
blk-stat.c blk-stat: fix a few cases of missing batch flushing 2016-12-09 13:08:35 -07:00
blk-stat.h block: add scalable completion tracking of requests 2016-11-10 13:53:26 -07:00
blk-sysfs.c block: don't call ioc_exit_icq() with the queue lock held for blk-mq 2017-03-02 13:59:08 -07:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c scripts/spelling.txt: add "embeded" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
blk-timeout.c block: remove REQ_NO_TIMEOUT flag 2015-12-22 09:38:34 -07:00
blk-wbt.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
blk-wbt.h blk-wbt: allow wbt to be enabled always through sysfs 2016-11-28 10:27:03 -07:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h block: optionally merge discontiguous discard bios into a single request 2017-02-08 13:43:08 -07:00
bounce.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bsg-lib.c block: split scsi_request out of struct request 2017-01-27 15:08:35 -07:00
bsg.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
cfq-iosched.c for-4.11/linus-merge-signed 2017-02-21 10:57:33 -08:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block: Get rid of blk_get_backing_dev_info() 2017-02-02 08:21:32 -07:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: don't call ioc_exit_icq() with the queue lock held for blk-mq 2017-03-02 13:59:08 -07:00
genhd.c block: Move bdi_unregister() to del_gendisk() 2017-03-02 16:08:35 -07:00
ioctl.c block: Get rid of blk_get_backing_dev_info() 2017-02-02 08:21:32 -07:00
ioprio.c block: use for_each_thread() in sys_ioprio_set()/sys_ioprio_get() 2017-02-22 16:41:27 -08:00
Kconfig Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
Kconfig.iosched block: get rid of blk-mq default scheduler choice Kconfig entries 2017-02-22 13:19:45 -07:00
Makefile Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
mq-deadline.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
noop-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
opal_proto.h block/sed-opal: allocate struct opal_dev dynamically 2017-02-17 12:41:47 -07:00
partition-generic.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
scsi_ioctl.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
sed-opal.c block/sed-opal: Propagate original error message to userland. 2017-02-23 11:55:44 -07:00
t10-pi.c block: Consolidate static integrity profile properties 2015-10-21 14:42:38 -06:00