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830778a180
linux/drivers/md
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NeilBrown 830778a180 md: ensure metadata is writen after raid level change. 
level_store() currently does not make sure the metadata is
updates to reflect the new raid level.  It simply sets MD_CHANGE_DEVS.

Any level with a ->thread will quickly notice this and update the
metadata.  However RAID0 and Linear do not have a thread so no
metadata update happens until the array is stopped.  At that point the
metadata is written.

This is later that we would like.  While the delay doesn't risk any
data it can cause confusion.  So if there is no md thread, immediately
update the metadata after a level change.

Reported-by: Richard Michael <rmichael@edgeofthenet.org>
Signed-off-by: NeilBrown <neilb@suse.de>
2014-01-14 16:44:21 +11:00
..
bcache bcache: defensively handle format strings 2013-11-10 21:56:43 -08:00
persistent-data dm space map disk: optimise sm_disk_dec_block 2013-11-09 18:20:24 -05:00
bitmap.c sysfs: clean up sysfs_get_dirent() 2013-09-26 15:33:18 -07:00
bitmap.h md/bitmap: record the space available for the bitmap in the superblock. 2012-05-22 13:55:34 +10:00
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-bufio.c drivers: convert shrinkers to new count/scan API 2013-09-10 18:56:32 -04:00
dm-bufio.h dm bufio: prefetch 2012-03-28 18:41:29 +01:00
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: resolve small nits and improve Documentation 2013-11-12 13:11:09 -05:00
dm-cache-policy.c dm cache: return -EINVAL if the user specifies unknown cache policy 2013-11-09 18:20:18 -05:00
dm-cache-policy.h dm cache: add remove_cblock method to policy interface 2013-11-11 11:37:50 -05:00
dm-cache-target.c dm cache: resolve small nits and improve Documentation 2013-11-12 13:11:09 -05:00
dm-crypt.c tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
dm-delay.c dm: rename request variables to bios 2013-03-01 22:45:47 +00:00
dm-exception-store.c dm: replace simple_strtoul 2012-07-27 15:07:59 +01:00
dm-exception-store.h
dm-flakey.c dm flakey: correct ctr alloc failure mesg 2013-07-10 23:41:17 +01:00
dm-io.c dm: add reserved_bio_based_ios module parameter 2013-09-23 10:42:24 -04:00
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 dm: rename request variables to bios 2013-03-01 22:45:47 +00:00
dm-log-userspace-base.c
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: requeue I/O during pg_init 2013-11-05 11:20:34 -05:00
dm-mpath.h
dm-path-selector.c
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: stop using WQ_NON_REENTRANT 2013-08-23 09:02:13 -04:00
dm-raid.c MD: Remember the last sync operation that was performed 2013-06-26 12:38:24 +10:00
dm-region-hash.c dm raid1: fix crash with mirror recovery and discard 2012-07-20 14:25:03 +01:00
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 data corruption 2013-10-16 03:17:47 +01:00
dm-snap-transient.c
dm-snap.c dm-snapshot: fix performance degradation due to small hash size 2013-09-20 10:36:34 -04:00
dm-stats.c dm stats: fix possible counter corruption on 32-bit systems 2013-09-18 14:41:06 -04:00
dm-stats.h dm: add statistics support 2013-09-05 20:46:06 -04:00
dm-stripe.c dm stripe: silence a couple sparse warnings 2013-09-06 11:36:01 -04:00
dm-switch.c dm: add switch target 2013-07-10 23:41:19 +01:00
dm-sysfs.c
dm-table.c dm table: print error on preresume failure 2013-11-09 18:20:21 -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: generate event when metadata threshold passed 2013-05-10 14:37:21 +01:00
dm-thin-metadata.h dm thin: generate event when metadata threshold passed 2013-05-10 14:37:21 +01:00
dm-thin.c dm thin: do not expose non-zero discard limits if discards disabled 2013-09-23 10:42:06 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c dm verity: use __ffs and __fls 2013-07-10 23:41:17 +01:00
dm-zero.c dm: rename request variables to bios 2013-03-01 22:45:47 +00:00
dm.c dm: allow remove to be deferred 2013-11-09 18:20:22 -05:00
dm.h dm: allow remove to be deferred 2013-11-09 18:20:22 -05:00
faulty.c block: Add bio_end_sector() 2013-03-23 14:15:29 -07:00
Kconfig dm: fix Kconfig menu indentation 2013-11-09 18:20:22 -05:00
linear.c block: Add bio_end_sector() 2013-03-23 14:15:29 -07:00
linear.h
Makefile dm: add statistics support 2013-09-05 20:46:06 -04:00
md.c md: ensure metadata is writen after raid level change. 2014-01-14 16:44:21 +11:00
md.h md: fix problem when adding device to read-only array with bitmap. 2014-01-14 16:44:08 +11:00
multipath.c MD: change the parameter of md thread 2012-10-11 13:34:00 +11:00
multipath.h
raid0.c md: fix buglet in RAID5 -> RAID0 conversion. 2013-06-26 12:38:19 +10:00
raid0.h
raid1.c md/raid1: fix request counting bug in new 'barrier' code. 2014-01-14 16:44:07 +11:00
raid1.h raid1: Rewrite the implementation of iobarrier. 2013-11-19 15:19:18 +11:00
raid5.c md/raid5: fix a recently broken BUG_ON(). 2014-01-14 16:44:07 +11:00
raid5.h md update for 3.13. 2013-11-20 13:05:25 -08:00
raid10.c md/raid10: avoid fullsync when not necessary. 2014-01-14 16:44:21 +11:00
raid10.h MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1) 2013-02-26 11:55:30 +11:00