Mike Snitzer 7da444af10 dm: handle requests beyond end of device instead of using BUG_ON ... commit ba1cbad93d upstream. The access beyond the end of device BUG_ON that was introduced to dm_request_fn via commit 29e4013de7 ("dm: implement REQ_FLUSH/FUA support for request-based dm") was an overly drastic (but simple) response to this situation. I have received a report that this BUG_ON was hit and now think it would be better to use dm_kill_unmapped_request() to fail the clone and original request with -EIO. map_request() will assign the valid target returned by dm_table_find_target to tio->ti. But when the target isn't valid tio->ti is never assigned (because map_request isn't called); so add a check for tio->ti != NULL to dm_done(). Reported-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-10-07 08:27:23 -07:00
..
bitmap.c	md/bitmap: prevent bitmap_daemon_work running while initialising bitmap	2012-04-22 16:21:44 -07:00
bitmap.h	md/bitmap: remove unused fields from struct bitmap	2011-06-09 11:43:01 +10:00
dm-bio-record.h
dm-crypt.c	dm crypt: add missing error handling	2012-04-02 09:27:19 -07:00
dm-delay.c	dm: convert workqueues to alloc_ordered	2011-01-13 19:59:57 +00:00
dm-exception-store.c	dm exception store: fix init error path	2012-04-02 09:27:19 -07:00
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	dm: do not forward ioctls from logical volumes to the underlying device	2012-01-25 17:24:54 -08:00
dm-io.c	dm io: fix discard support	2012-03-12 10:33:01 -07:00
dm-ioctl.c	dm ioctl: add flag to wipe buffers for secure data	2011-03-24 13:54:30 +00:00
dm-kcopyd.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-linear.c	dm: do not forward ioctls from logical volumes to the underlying device	2012-01-25 17:24:54 -08:00
dm-log-userspace-base.c	dm log userspace: add version number to comms	2011-01-13 19:59:52 +00:00
dm-log-userspace-transfer.c	netlink: kill eff_cap from struct netlink_skb_parms	2011-03-03 13:32:07 -08:00
dm-log-userspace-transfer.h
dm-log.c	dm io: use fixed initial mempool size	2011-05-29 13:03:09 +01:00
dm-mpath.c	dm: do not forward ioctls from logical volumes to the underlying device	2012-01-25 17:24:54 -08:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: fix flush support	2012-03-12 10:33:01 -07:00
dm-raid1.c	dm raid1: fix crash with mirror recovery and discard	2012-08-01 12:26:54 -07:00
dm-region-hash.c	dm raid1: fix crash with mirror recovery and discard	2012-08-01 12:26:54 -07:00
dm-round-robin.c
dm-service-time.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
dm-snap-persistent.c	dm snapshot: flush disk cache when merging	2011-08-04 21:58:42 -07:00
dm-snap-transient.c	dm snapshot: move cow ref from exception store to snap core	2009-12-10 23:52:12 +00:00
dm-snap.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-stripe.c	dm stripe: implement merge method	2011-03-24 13:54:35 +00:00
dm-sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
dm-table.c	dm table: avoid crash if integrity profile changes	2011-10-16 14:14:53 -07:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
dm-uevent.c	dm table: remove dm_get from dm_table_get_md	2010-03-06 02:29:52 +00:00
dm-uevent.h
dm-zero.c	dm: zero silently drop discards	2010-08-12 04:14:12 +01:00
dm.c	dm: handle requests beyond end of device instead of using BUG_ON	2012-10-07 08:27:23 -07:00
dm.h	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
faulty.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
Kconfig	dm: add flakey target	2011-03-24 13:54:24 +00:00
linear.c	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
linear.h	md/linear: avoid corrupting structure while waiting for rcu_free to complete.	2011-10-03 11:40:03 -07:00
Makefile	dm: add flakey target	2011-03-24 13:54:24 +00:00
md.c	md: Don't truncate size at 4TB for RAID0 and Linear	2012-10-02 09:47:25 -07:00
md.h	md: Avoid waking up a thread after it has been freed.	2011-10-16 14:14:53 -07:00
multipath.c	md: Avoid waking up a thread after it has been freed.	2011-10-16 14:14:53 -07:00
multipath.h	md/multipath: discard ->working_disks in favour of ->degraded	2011-05-11 14:38:02 +10:00
raid1.c	md/raid1,raid10: avoid deadlock during resync/recovery.	2012-04-02 09:27:11 -07:00
raid1.h	MD: raid1 changes to allow use by device mapper	2011-06-08 15:11:31 +10:00
raid5.c	md/raid5: Do not add data_offset before call to is_badblock	2012-07-16 08:47:51 -07:00
raid5.h	md - remove old plugging code.	2011-04-18 18:25:42 +10:00
raid10.c	md/raid10: Don't try to recovery unmatched (and unused) chunks.	2012-07-16 08:47:52 -07:00
raid10.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
raid0.c	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
raid0.h	md: fix handling of array level takeover that re-arranges devices.	2010-06-24 13:33:24 +10:00