NeilBrown 2c810cddc4 md: allow a reshape operation to be reversed. ... Currently a reshape operation always progresses from the start of the array to the end unless the number of devices is being reduced, in which case it progressed in the opposite direction. To reverse a partial reshape which changes the number of devices you can stop the array and re-assemble with the raid-disks numbers reversed and it will undo. However for a reshape that does not change the number of devices it is not possible to reverse the reshape in the middle - you have to wait until it completes. So add a 'reshape_direction' attribute with is either 'forwards' or 'backwards' and can be explicitly set when delta_disks is zero. This will become more important when we allow the data_offset to change in a reshape. Then the explicit statement of what direction is being used will be more useful. This can be enabled in raid5 trivially as it already supports reverse reshape and just needs to use a different trigger to request it. Signed-off-by: NeilBrown <neilb@suse.de>		2012-05-21 09:27:00 +10:00
..
persistent-data	dm persistent data: remove space map ref_count entries if redundant	2012-03-28 18:41:27 +01:00
bitmap.c	md/bitmap: fix calculation of 'chunks' - missing shift.	2012-05-04 17:03:18 +10:00
bitmap.h	md/bitmap: fix calculation of 'chunks' - missing shift.	2012-05-04 17:03:18 +10:00
dm-bio-record.h	dm: preserve bi_io_vec when resubmitting bios	2009-04-02 19:55:23 +01:00
dm-bufio.c	dm bufio: prefetch	2012-03-28 18:41:29 +01:00
dm-bufio.h	dm bufio: prefetch	2012-03-28 18:41:29 +01:00
dm-crypt.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-delay.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-exception-store.c	dm exception store: fix init error path	2012-03-28 18:41:22 +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	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-io.c	dm io: fix discard support	2012-03-07 19:09:37 +00:00
dm-ioctl.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
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: reject trailing characters in sccanf input	2012-03-28 18:41:26 +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: userspace add luid to distinguish between concurrent log instances	2009-09-04 20:40:34 +01:00
dm-log.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-mpath.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +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 mpath: add start_io and nr_bytes to path selectors	2009-06-22 10:12:27 +01:00
dm-queue-length.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-raid1.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-raid.c	DM RAID: Use safe version of rdev_for_each	2012-04-24 10:23:13 +10:00
dm-region-hash.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
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	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: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
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: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
dm-thin-metadata.c	dm thin: relax hard limit on the maximum size of a metadata device	2012-03-28 18:41:28 +01:00
dm-thin-metadata.h	dm thin: relax hard limit on the maximum size of a metadata device	2012-03-28 18:41:28 +01:00
dm-thin.c	dm thin: add pool target flags to control discard	2012-03-28 18:41:29 +01:00
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	dm: add verity target	2012-03-28 18:43:38 +01:00
dm-zero.c	dm: zero silently drop discards	2010-08-12 04:14:12 +01:00
dm.c	dm: clear bi_end_io on remapping failure	2012-03-28 18:41:25 +01:00
dm.h	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
faulty.c	md: tidy up rdev_for_each usage.	2012-03-19 12:46:39 +11:00
Kconfig	dm: add verity target	2012-03-28 18:43:38 +01:00
linear.c	md/linear: If md_integrity_register() fails, linear_run() must free the mem.	2012-04-02 09:48:37 +10:00
linear.h	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm: add verity target	2012-03-28 18:43:38 +01:00
md.c	md: allow a reshape operation to be reversed.	2012-05-21 09:27:00 +10:00
md.h	md: allow a reshape operation to be reversed.	2012-05-21 09:27:00 +10:00
multipath.c	md: tidy up rdev_for_each usage.	2012-03-19 12:46:39 +11:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
raid0.c	md: Avoid OOPS when reshaping raid1 to raid0	2012-04-03 15:37:26 +10:00
raid0.h	md: add proper merge_bvec handling to RAID0 and Linear.	2012-03-19 12:46:39 +11:00
raid1.c	md/raid1,raid10: Fix calculation of 'vcnt' when processing error recovery.	2012-04-12 16:04:47 +10:00
raid1.h	md/raid1: Allocate spare to store replacement devices and their bios.	2011-12-23 10:17:56 +11:00
raid5.c	md: allow a reshape operation to be reversed.	2012-05-21 09:27:00 +10:00
raid5.h	md/raid5: detect and handle replacements during recovery.	2011-12-23 10:17:53 +11:00
raid10.c	md/raid10: fix transcription error in calc_sectors conversion.	2012-05-19 09:01:13 +10:00
raid10.h	md/raid10: prepare data structures for handling replacement.	2011-12-23 10:17:54 +11:00