NeilBrown d3e972d5e7 md/raid10: always set reshape_safe when initializing reshape_position. ... commit 299b0685e3 upstream. 'reshape_position' tracks where in the reshape we have reached. 'reshape_safe' tracks where in the reshape we have safely recorded in the metadata. These are compared to determine when to update the metadata. So it is important that reshape_safe is initialised properly. Currently it isn't. When starting a reshape from the beginning it usually has the correct value by luck. But when reducing the number of devices in a RAID10, it has the wrong value and this leads to the metadata not being updated correctly. This can lead to corruption if the reshape is not allowed to complete. This patch is suitable for any -stable kernel which supports RAID10 reshape, which is 3.5 and later. Fixes: 3ea7daa5d7 ("md/raid10: add reshape support") Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2015-10-01 12:07:32 +02:00
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bcache	bcache: Data corruption fix	2014-02-06 11:08:16 -08:00
persistent-data	dm btree: silence lockdep lock inversion in dm_btree_del()	2015-08-03 09:29:45 -07:00
bitmap.c	md/bitmap: return an error when bitmap superblock is corrupt.	2015-08-16 20:51:43 -07:00
bitmap.h
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-bufio.c	dm bufio: fix memleak when using a dm_buffer's inline bio	2015-01-08 09:58:15 -08:00
dm-bufio.h
dm-builtin.c	dm sysfs: fix a module unload race	2014-02-13 13:48:02 -08:00
dm-cache-block-types.h	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-cache-metadata.c	dm cache: fix missing ERR_PTR returns and handling	2015-02-05 22:35:37 -08:00
dm-cache-metadata.h	dm cache: policy ignore hints if generated by different version	2013-03-20 17:21:28 +00:00
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: policy change version from string to integer set	2013-03-20 17:21:27 +00:00
dm-cache-policy-mq.c	dm cache: policy change version from string to integer set	2013-03-20 17:21:27 +00:00
dm-cache-policy.c	dm cache: policy change version from string to integer set	2013-03-20 17:21:27 +00:00
dm-cache-policy.h	dm cache policy: fix description of lookup fn	2013-05-10 14:37:17 +01:00
dm-cache-target.c	dm cache: always split discards on cache block boundaries	2014-06-11 12:03:23 -07:00
dm-crypt.c	dm crypt: fix access beyond the end of allocated space	2014-10-05 14:54:12 -07:00
dm-delay.c	dm delay: fix a possible deadlock due to shared workqueue	2013-12-20 07:45:11 -08:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm-io.c	dm io: reject unsupported DISCARD requests with EOPNOTSUPP	2015-03-18 13:22:34 +01:00
dm-ioctl.c	dm ioctl: set noio flag to avoid __vmalloc deadlock	2013-08-04 16:51:02 +08:00
dm-kcopyd.c	dm kcopyd: introduce configurable throttling	2013-03-01 22:45:49 +00:00
dm-linear.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c	dm log userspace: fix memory leak in dm_ulog_tfr_init failure path	2014-11-14 08:47:55 -08:00
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	2014-03-06 21:30:13 -08:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: ensure superblock's size matches device's logical block size	2014-11-21 09:22:53 -08:00
dm-raid1.c	dm mirror: do not degrade the mirror on discard error	2015-03-18 13:22:34 +01:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: fix data corruption	2013-11-04 04:31:06 -08:00
dm-snap-transient.c
dm-snap.c	dm snapshot: fix a possible invalid memory access on unload	2015-03-18 13:22:34 +01:00
dm-stripe.c	dm stripe: fix regression in stripe_width calculation	2013-05-10 14:37:14 +01:00
dm-sysfs.c	dm sysfs: fix a module unload race	2014-02-13 13:48:02 -08:00
dm-table.c	dm table: fail dm_table_create on dm_round_up overflow	2013-12-20 07:45:11 -08:00
dm-target.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm-thin-metadata.c	dm thin metadata: delete btrees when releasing metadata snapshot	2015-09-13 09:07:59 -07:00
dm-thin-metadata.h	dm thin: avoid metadata commit if a pool's thin devices haven't changed	2014-03-06 21:30:13 -08:00
dm-thin.c	dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode	2015-02-05 22:35:36 -08:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm verity: fix inability to use a few specific devices sizes	2013-08-04 16:51:02 +08:00
dm-zero.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm.c	dm: hold suspend_lock while suspending device during device deletion	2015-04-13 14:02:12 +02:00
dm.h	dm sysfs: fix a module unload race	2014-02-13 13:48:02 -08:00
faulty.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
Kconfig	dm sysfs: fix a module unload race	2014-02-13 13:48:02 -08:00
linear.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
linear.h
Makefile	dm sysfs: fix a module unload race	2014-02-13 13:48:02 -08:00
md.c	md: use kzalloc() when bitmap is disabled	2015-08-16 20:51:37 -07:00
md.h	md: fix problem when adding device to read-only array with bitmap.	2014-01-25 08:27:12 -08:00
multipath.c	MD: change the parameter of md thread	2012-10-11 13:34:00 +11:00
multipath.h
raid1.c	md/raid1: extend spinlock to protect raid1_end_read_request against inconsistencies	2015-08-16 20:51:41 -07:00
raid1.h	md/raid1: prevent merging too large request	2012-07-31 10:03:53 +10:00
raid5.c	md/raid5: don't record new size if resize_stripes fails.	2015-06-05 23:19:59 -07:00
raid5.h	md/raid5: fix interaction of 'replace' and 'recovery'.	2013-08-04 16:50:54 +08:00
raid10.c	md/raid10: always set reshape_safe when initializing reshape_position.	2015-10-01 12:07:32 +02:00
raid10.h	MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)	2013-02-26 11:55:30 +11:00
raid0.c	block: Change bio_split() to respect the current value of bi_idx	2013-03-23 14:15:30 -07:00
raid0.h