Junichi Nomura 2a708cff93 dm: fix AB-BA deadlock in __dm_destroy() ... __dm_destroy() takes io_barrier SRCU lock (dm_get_live_table) and suspend_lock in reverse order. Doing so can cause AB-BA deadlock: __dm_destroy dm_swap_table --------------------------------------------------- mutex_lock(suspend_lock) dm_get_live_table() srcu_read_lock(io_barrier) dm_sync_table() synchronize_srcu(io_barrier) .. waiting for dm_put_live_table() mutex_lock(suspend_lock) .. waiting for suspend_lock Fix this by taking the locks in proper order. Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Fixes: ab7c7bb6f4 ("dm: hold suspend_lock while suspending device during device deletion") Acked-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2015-10-01 10:40:20 -04:00
..
bcache	bcache: remove driver private bio splitting code	2015-08-13 12:31:40 -06:00
persistent-data	dm: remove unlikely() before IS_ERR()	2015-08-12 11:32:21 -04:00
bitmap.c	Some md fixes for 4.2	2015-07-25 11:24:58 -07:00
bitmap.h
dm-bio-prison.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-bio-prison.h
dm-bio-record.h
dm-bufio.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-bufio.h
dm-builtin.c
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h
dm-cache-policy-cleaner.c
dm-cache-policy-internal.h
dm-cache-policy-mq.c	dm cache policy smq: move 'dm-cache-default' module alias to SMQ	2015-08-12 11:27:29 -04:00
dm-cache-policy-smq.c	dm cache policy smq: change the mutex to a spinlock	2015-08-12 11:32:19 -04:00
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-crypt.c	dm crypt: constrain crypt device's max_segment_size to PAGE_SIZE	2015-09-14 12:04:24 -04:00
dm-delay.c	dm: do not override error code returned from dm_get_device()	2015-08-12 11:32:21 -04:00
dm-era-target.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-io.c	block: remove bio_get_nr_vecs()	2015-08-13 12:32:04 -06:00
dm-ioctl.c	char: make misc_deregister a void function	2015-08-05 10:35:49 -07:00
dm-kcopyd.c
dm-linear.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-log.c
dm-mpath.c	dm-mpath, scsi_dh: request scsi_dh modules in scsi_dh, not dm-mpath	2015-08-28 13:14:55 -07:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-raid.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm: remove unlikely() before IS_ERR()	2015-08-12 11:32:21 -04:00
dm-snap-transient.c
dm-snap.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-stats.c	dm stats: report precise_timestamps and histogram in @stats_list output	2015-08-18 17:20:03 -04:00
dm-stats.h
dm-stripe.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-switch.c
dm-sysfs.c
dm-table.c	block: Replace SG_GAPS with new queue limits mask	2015-08-19 14:26:02 -07:00
dm-target.c
dm-thin-metadata.c	dm thin metadata: delete btrees when releasing metadata snapshot	2015-08-12 10:42:51 -04:00
dm-thin-metadata.h
dm-thin.c	dm thin: disable discard support for thin devices if pool's is disabled	2015-09-13 21:32:10 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-zero.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm.c	dm: fix AB-BA deadlock in __dm_destroy()	2015-10-01 10:40:20 -04:00
dm.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
faulty.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
Kconfig	SCSI misc on 20150911	2015-09-11 18:15:18 -07:00
linear.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
linear.h
Makefile
md-cluster.c	md-cluster: remove inappropriate try_module_get from join()	2015-08-31 19:43:17 +02:00
md-cluster.h	Fix read-balancing during node failure	2015-07-24 13:37:59 +10:00
md.c	Merge linux-block/for-4.3/core into md/for-linux	2015-09-05 11:08:32 +02:00
md.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
multipath.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
multipath.h
raid0.c	Merge linux-block/for-4.3/core into md/for-linux	2015-09-05 11:08:32 +02:00
raid0.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
raid1.c	Merge linux-block/for-4.3/core into md/for-linux	2015-09-05 11:08:32 +02:00
raid1.h	md/raid1: ensure device failure recorded before write request returns.	2015-08-31 19:43:23 +02:00
raid5.c	Merge linux-block/for-4.3/core into md/for-linux	2015-09-05 11:08:32 +02:00
raid5.h	md/raid5: ensure device failure recorded before write request returns.	2015-08-31 19:43:59 +02:00
raid10.c	Merge linux-block/for-4.3/core into md/for-linux	2015-09-05 11:08:32 +02:00
raid10.h	md/raid10: ensure device failure recorded before write request returns.	2015-08-31 19:43:45 +02:00