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linux/drivers/md
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NeilBrown 18c45d9c8e md: flush ->event_work before stopping array. 
commit ee5d004fd0 upstream.

The 'event_work' worker used by dm-raid may still be running
when the array is stopped.  This can result in an oops.

So flush the workqueue on which it is run after detaching
and before destroying the device.

Reported-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Fixes: 9d09e663d5 ("dm: raid456 basic support")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2015-09-29 19:26:14 +02:00
..
bcache md/bcache: use generic io stats accounting functions to simplify io stat accounting 2014-11-24 08:05:12 -07:00
persistent-data dm btree: silence lockdep lock inversion in dm_btree_del() 2015-08-03 09:29:07 -07:00
bitmap.c md: Skip cluster setup for dm-raid 2015-08-03 09:29:13 -07:00
bitmap.h md-cluster: re-add capabilities 2015-04-22 07:59:39 +10:00
dm-bio-prison.c dm bio prison: introduce support for locking ranges of blocks 2014-11-10 15:25:30 -05:00
dm-bio-prison.h dm bio prison: introduce support for locking ranges of blocks 2014-11-10 15:25:30 -05:00
dm-bio-record.h dm: Refactor for new bio cloning/splitting 2013-11-23 22:33:55 -08:00
dm-bufio.c dm bufio: fix time comparison to use time_after_eq() 2015-02-09 13:06:48 -05:00
dm-bufio.h dm snapshot: use dm-bufio prefetch 2014-01-14 23:23:03 -05:00
dm-builtin.c dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
dm-cache-block-types.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-metadata.c dm cache: fix missing ERR_PTR returns and handling 2015-01-28 09:59:20 -05:00
dm-cache-metadata.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-policy-cleaner.c dm cache: fix race when issuing a POLICY_REPLACE operation 2015-08-03 09:29:06 -07:00
dm-cache-policy-internal.h dm cache: fix race when issuing a POLICY_REPLACE operation 2015-08-03 09:29:06 -07:00
dm-cache-policy-mq.c dm cache: fix race when issuing a POLICY_REPLACE operation 2015-08-03 09:29:06 -07:00
dm-cache-policy.c dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
dm-cache-policy.h dm cache: fix race when issuing a POLICY_REPLACE operation 2015-08-03 09:29:06 -07:00
dm-cache-target.c dm cache: fix race when issuing a POLICY_REPLACE operation 2015-08-03 09:29:06 -07:00
dm-crypt.c Revert "dm crypt: fix deadlock when async crypto algorithm returns -EBUSY" 2015-05-05 12:16:43 -04:00
dm-delay.c dm delay: use msecs_to_jiffies for time conversion 2015-04-15 12:10:21 -04:00
dm-era-target.c dm era: check for a non-NULL metadata object before closing it 2014-06-03 13:44:08 -04:00
dm-exception-store.c dm: replace simple_strtoul 2012-07-27 15:07:59 +01:00
dm-exception-store.h dm snapshot: test chunk size against both origin and snapshot 2010-08-12 04:13:51 +01:00
dm-flakey.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-io.c dm io: deal with wandering queue limits when handling REQ_DISCARD and REQ_WRITE_SAME 2015-02-27 14:53:32 -05:00
dm-ioctl.c dm: only initialize the request_queue once 2015-04-30 10:25:21 -04:00
dm-kcopyd.c dm: stop using WQ_NON_REENTRANT 2013-08-23 09:02:13 -04:00
dm-linear.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-log-userspace-base.c dm log userspace base: fix compile warning 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h dm log: userspace add luid to distinguish between concurrent log instances 2009-09-04 20:40:34 +01:00
dm-log-writes.c dm: add log writes target 2015-04-15 12:10:24 -04:00
dm-log.c dm: use memweight() 2012-07-30 17:25:16 -07:00
dm-mpath.c dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error path 2015-05-27 17:37:22 -04:00
dm-mpath.h dm mpath: remove is_active from struct dm_path 2008-10-10 13:36:58 +01:00
dm-path-selector.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-path-selector.h dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-queue-length.c dm: reject trailing characters in sccanf input 2012-03-28 18:41:26 +01:00
dm-raid.c - Most significant change this cycle is request-based DM now supports 2015-02-12 16:36:31 -08:00
dm-raid1.c dm mirror: do not degrade the mirror on discard error 2015-02-13 19:50:46 -05:00
dm-region-hash.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-round-robin.c dm: reject trailing characters in sccanf input 2012-03-28 18:41:26 +01:00
dm-service-time.c dm: reject trailing characters in sccanf input 2012-03-28 18:41:26 +01:00
dm-snap-persistent.c dm snapshot: remove unnecessary NULL checks before vfree() calls 2015-02-09 13:06:49 -05:00
dm-snap-transient.c md: Add in export.h for files using EXPORT_SYMBOL 2011-10-31 19:31:19 -04:00
dm-snap.c dm snapshot: suspend merging snapshot when doing exception handover 2015-02-27 14:53:16 -05:00
dm-stats.c dm stats: fix divide by zero if 'number_of_areas' arg is zero 2015-08-03 09:29:06 -07:00
dm-stats.h dm: add statistics support 2013-09-05 20:46:06 -04:00
dm-stripe.c dm stripe: fix potential for leak in stripe_ctr error path 2014-10-10 22:05:18 -04:00
dm-switch.c dm switch: efficiently support repetitive patterns 2014-08-01 12:30:37 -04:00
dm-sysfs.c dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
dm-table.c dm: fix reload failure of 0 path multipath mapping on blk-mq devices 2015-05-29 13:41:16 -04:00
dm-target.c dm: allocate requests in target when stacking on blk-mq devices 2015-02-09 13:06:47 -05:00
dm-thin-metadata.c dm thin metadata: delete btrees when releasing metadata snapshot 2015-09-13 09:07:40 -07:00
dm-thin-metadata.h dm thin metadata: remove unused dm_pool_get_data_block_size() 2015-02-09 13:06:49 -05:00
dm-thin.c dm thin: allocate the cell_sort_array dynamically 2015-08-03 09:29:06 -07:00
dm-uevent.c md: Add in export.h for files using EXPORT_SYMBOL 2011-10-31 19:31:19 -04:00
dm-uevent.h dm: uevent generate events 2007-10-20 02:01:26 +01:00
dm-verity.c dm verity: add error handling modes for corrupted blocks 2015-04-15 12:10:22 -04:00
dm-zero.c dm crypt, dm zero: update author name following legal name change 2014-07-10 16:44:14 -04:00
dm.c dm: fix dm_merge_bvec regression on 32 bit systems 2015-08-16 20:52:23 -07:00
dm.h dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
faulty.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
Kconfig md updates for 4.1 2015-04-24 09:28:01 -07:00
linear.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
linear.h md/linear: typedef removal: linear_conf_t -> struct linear_conf 2011-10-11 16:48:54 +11:00
Makefile md updates for 4.1 2015-04-24 09:28:01 -07:00
md-cluster.c md-cluster: re-add capabilities 2015-04-22 07:59:39 +10:00
md-cluster.h md-cluster: re-add capabilities 2015-04-22 07:59:39 +10:00
md.c md: flush ->event_work before stopping array. 2015-09-29 19:26:14 +02:00
md.h md: remove 'go_faster' option from ->sync_request() 2015-04-22 08:00:40 +10:00
multipath.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
multipath.h md/multipath: typedef removal: multipath_conf_t -> struct mpconf 2011-10-11 16:48:57 +11:00
raid0.c md/raid0: fix restore to sector variable in raid0_make_request 2015-05-21 09:14:25 +10:00
raid0.h md: add proper merge_bvec handling to RAID0 and Linear. 2012-03-19 12:46:39 +11:00
raid1.c md/raid1: extend spinlock to protect raid1_end_read_request against inconsistencies 2015-08-16 20:52:23 -07:00
raid1.h md: make ->congested robust against personality changes. 2015-02-04 08:35:52 +11:00
raid5.c md/raid5: don't let shrink_slab shrink too far. 2015-09-29 19:26:13 +02:00
raid5.h md/raid5: avoid races when changing cache size. 2015-09-29 19:26:13 +02:00
raid10.c md/raid10: always set reshape_safe when initializing reshape_position. 2015-09-29 19:26:13 +02:00
raid10.h md: make ->congested robust against personality changes. 2015-02-04 08:35:52 +11:00