NeilBrown 961902c0f8 md/bitmap: It is OK to clear bits during recovery. ... commit d0a4bb4927 introduced a regression which is annoying but fairly harmless. When writing to an array that is undergoing recovery (a spare in being integrated into the array), writing to the array will set bits in the bitmap, but they will not be cleared when the write completes. For bits covering areas that have not been recovered yet this is not a problem as the recovery will clear the bits. However bits set in already-recovered region will stay set and never be cleared. This doesn't risk data integrity. The only negatives are: - next time there is a crash, more resyncing than necessary will be done. - the bitmap doesn't look clean, which is confusing. While an array is recovering we don't want to update the 'events_cleared' setting in the bitmap but we do still want to clear bits that have very recently been set - providing they were written to the recovering device. So split those two needs - which previously both depended on 'success' and always clear the bit of the write went to all devices. Signed-off-by: NeilBrown <neilb@suse.de>		2011-12-23 09:57:48 +11:00
..
persistent-data	device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h	2011-11-07 10:29:10 -08:00
bitmap.c	md/bitmap: It is OK to clear bits during recovery.	2011-12-23 09:57:48 +11:00
bitmap.h	md: remove typedefs: mddev_t -> struct mddev	2011-10-11 16:47:53 +11:00
dm-bio-record.h
dm-bufio.c	device-mapper: dm-bufio.c needs to include module.h	2011-11-07 10:29:10 -08:00
dm-bufio.h	dm: add bufio	2011-10-31 20:19:09 +00:00
dm-crypt.c	dm crypt: always disable discard_zeroes_data	2011-09-25 23:26:21 +01:00
dm-delay.c	dm: convert workqueues to alloc_ordered	2011-01-13 19:59:57 +00:00
dm-exception-store.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
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: flakey fix corrupt_bio_byte error path	2011-09-25 23:26:15 +01:00
dm-io.c	dm io: flush cpu cache with vmapped io	2011-08-02 12:32:01 +01:00
dm-ioctl.c	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-kcopyd.c	dm kcopyd: add dm_kcopyd_zero to zero an area	2011-10-31 20:18:58 +00:00
dm-linear.c	dm: use dm_target_offset macro	2010-08-12 04:14:11 +01:00
dm-log-userspace-base.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
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: use vzalloc	2011-08-02 12:32:02 +01:00
dm-mpath.c	dm table: share target argument parsing functions	2011-08-02 12:32:04 +01:00
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	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-raid1.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-raid.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dm-region-hash.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
dm-round-robin.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-service-time.c	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
dm-snap-persistent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
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	dm snapshot: skip reading origin when overwriting complete chunk	2011-08-02 12:32:04 +01:00
dm-stripe.c	dm stripe: implement merge method	2011-03-24 13:54:35 +00:00
dm-sysfs.c
dm-table.c	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
dm-thin-metadata.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin-metadata.h	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
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-zero.c	dm: zero silently drop discards	2010-08-12 04:14:12 +01:00
dm.c	Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block	2011-11-04 17:06:58 -07:00
dm.h	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
faulty.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
Kconfig	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
linear.c	md/linear: fix hot-add of devices to linear arrays.	2011-12-23 09:56:55 +11:00
linear.h	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
md.c	md: don't give up looking for spares on first failure-to-add	2011-12-23 09:57:19 +11:00
md.h	Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block	2011-11-04 17:06:58 -07:00
multipath.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
raid0.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
raid0.h	md/raid0: typedef removal: raid0_conf_t -> struct r0conf	2011-10-11 16:48:59 +11:00
raid1.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
raid1.h	md: add proper write-congestion reporting to RAID1 and RAID10.	2011-10-11 16:50:01 +11:00
raid5.c	md/raid5: ensure correct assessment of drives during degraded reshape.	2011-12-23 09:57:00 +11:00
raid5.h	md/raid5: typedef removal: raid5_conf_t -> struct r5conf	2011-10-11 16:49:52 +11:00
raid10.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
raid10.h	md: add proper write-congestion reporting to RAID1 and RAID10.	2011-10-11 16:50:01 +11:00