Heinz Mauelshagen e893fba90c dm cache: fix access beyond end of origin device ... In order to avoid wasting cache space a partial block at the end of the origin device is not cached. Unfortunately, the check for such a partial block at the end of the origin device was flawed. Fix accesses beyond the end of the origin device that occured due to attempted promotion of an undetected partial block by: - initializing the per bio data struct to allow cache_end_io to work properly - recognizing access to the partial block at the end of the origin device - avoiding out of bounds access to the discard bitset Otherwise, users can experience errors like the following: attempt to access beyond end of device dm-5: rw=0, want=20971520, limit=20971456 ... device-mapper: cache: promotion failed; couldn't copy block Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Acked-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2014-03-12 13:52:00 -04:00
..
bcache	Merge branch 'bcache-for-3.14' of git://evilpiepirate.org/~kent/linux-bcache into for-linus	2014-01-30 12:57:55 -07:00
persistent-data	dm space map metadata: fix refcount decrement below 0 which caused corruption	2014-03-07 12:02:47 -05:00
bitmap.c	kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly	2013-12-11 15:28:36 -08:00
bitmap.h	kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly	2013-12-11 15:28:36 -08:00
dm-bio-prison.c	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-bio-prison.h	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-bio-record.h	dm: Refactor for new bio cloning/splitting	2013-11-23 22:33:55 -08:00
dm-bufio.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
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: add cache target	2013-03-01 22:45:51 +00:00
dm-cache-metadata.c	dm cache metadata: check the metadata version when reading the superblock	2013-11-11 11:37:49 -05:00
dm-cache-metadata.h	dm cache: add passthrough mode	2013-11-11 11:37:49 -05:00
dm-cache-policy-cleaner.c	dm cache: policy change version from string to integer set	2013-03-20 17:21:27 +00:00
dm-cache-policy-internal.h	dm cache: add remove_cblock method to policy interface	2013-11-11 11:37:50 -05:00
dm-cache-policy-mq.c	dm cache mq: fix memory allocation failure for large cache devices	2014-02-28 12:18:29 -05:00
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: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-cache-target.c	dm cache: fix access beyond end of origin device	2014-03-12 13:52:00 -04:00
dm-crypt.c	block: Convert drivers to immutable biovecs	2013-11-23 22:33:51 -08:00
dm-delay.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
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: fix I/O to multiple destinations	2014-02-17 11:00:05 -05:00
dm-ioctl.c	dm: allow remove to be deferred	2013-11-09 18:20:22 -05:00
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: allow mark requests to piggyback on flush requests	2014-01-21 23:46:27 -05:00
dm-log-userspace-transfer.c	connector/userns: replace netlink uses of cap_raised() with capable()	2012-05-10 23:21:39 -04:00
dm-log-userspace-transfer.h
dm-log.c	dm: use memweight()	2012-07-30 17:25:16 -07:00
dm-mpath.c	dm mpath: fix stalls when handling invalid ioctls	2014-02-26 09:44:44 -05:00
dm-mpath.h
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-queue-length.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-raid1.c	dm raid1: fix immutable biovec related BUG when retrying read bio	2014-02-18 10:48:57 -05:00
dm-raid.c	MD: Remember the last sync operation that was performed	2013-06-26 12:38:24 +10:00
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: fix metadata corruption	2014-03-03 17:58:13 -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	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
dm-stats.c	dm stats: initialize read-only module parameter	2013-12-10 19:13:21 -05:00
dm-stats.h	dm: add statistics support	2013-09-05 20:46:06 -04:00
dm-stripe.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
dm-switch.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
dm-sysfs.c	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
dm-table.c	dm table: remove unused buggy code that extends the targets array	2014-01-07 10:11:44 -05:00
dm-target.c	dm: allow error target to replace bio-based and request-based targets	2013-09-05 20:46:05 -04:00
dm-thin-metadata.c	dm thin: ensure user takes action to validate data and metadata consistency	2014-03-05 15:25:35 -05:00
dm-thin-metadata.h	dm thin: ensure user takes action to validate data and metadata consistency	2014-03-05 15:25:35 -05:00
dm-thin.c	dm thin: fix noflush suspend IO queueing	2014-03-05 15:26:59 -05:00
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-verity.c	block: Generic bio chaining	2013-11-23 22:33:56 -08:00
dm-zero.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
dm.h	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
faulty.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
Kconfig	dm: fix Kconfig indentation	2014-03-03 17:31:07 -05:00
linear.c	block: Introduce new bio_split()	2013-11-23 22:33:57 -08:00
linear.h	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
md.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
md.h	Driver core / sysfs patches for 3.14-rc1	2014-01-20 15:49:44 -08:00
multipath.c	block: Abstract out bvec iterator	2013-11-23 22:33:47 -08:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
raid0.c	block: Introduce new bio_split()	2013-11-23 22:33:57 -08:00
raid0.h	md: add proper merge_bvec handling to RAID0 and Linear.	2012-03-19 12:46:39 +11:00
raid1.c	md/raid1: restore ability for check and repair to fix read errors.	2014-02-05 12:26:04 +11:00
raid1.h	raid1: Rewrite the implementation of iobarrier.	2013-11-19 15:19:18 +11:00
raid5.c	md/raid5: Fix CPU hotplug callback registration	2014-02-13 13:46:45 +11:00
raid5.h	md update for 3.13.	2013-11-20 13:05:25 -08:00
raid10.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
raid10.h	MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)	2013-02-26 11:55:30 +11:00