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linux-2.6/drivers/md
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NeilBrown 7ecaa1e6a1 [PATCH] md: Infrastructure to allow normal IO to continue while array is expanding 
We need to allow that different stripes are of different effective sizes, and
use the appropriate size.  Also, when a stripe is being expanded, we must
block any IO attempts until the stripe is stable again.

Key elements in this change are:
 - each stripe_head gets a 'disk' field which is part of the key,
   thus there can sometimes be two stripe heads of the same area of
   the array, but covering different numbers of devices.  One of these
   will be marked STRIPE_EXPANDING and so won't accept new requests.
 - conf->expand_progress tracks how the expansion is progressing and
   is used to determine whether the target part of the array has been
   expanded yet or not.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-03-27 08:45:01 -08:00
..
raid6test [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
.gitignore gitignore: misc files 2006-01-01 22:21:50 +01:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] md: optimised resync using Bitmap based intent logging 2005-06-21 19:07:43 -07:00
bitmap.c [PATCH] mempool: use common mempool kmalloc allocator 2006-03-26 08:56:59 -08:00
dm-bio-list.h [PATCH] device-mapper snapshot: bio_list fix 2005-11-22 09:14:31 -08:00
dm-bio-record.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-crypt.c [PATCH] dm: remove SECTOR_FORMAT 2006-03-27 08:44:58 -08:00
dm-emc.c [PATCH] device-mapper dm-emc: Fix a memset 2005-05-05 16:36:46 -07:00
dm-exception-store.c [PATCH] vfree and kfree cleanup in drivers/ 2005-09-10 10:06:30 -07:00
dm-hw-handler.c BUG_ON() Conversion in md/dm-hw-handler.c 2006-03-24 18:36:27 +01:00
dm-hw-handler.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-io.c [PATCH] mempool: use common mempool kmalloc allocator 2006-03-26 08:56:59 -08:00
dm-io.h [PATCH] device-mapper: remove unused definition 2006-01-06 08:34:00 -08:00
dm-ioctl.c [PATCH] dm store geometry 2006-03-27 08:44:59 -08:00
dm-linear.c [PATCH] dm: remove SECTOR_FORMAT 2006-03-27 08:44:58 -08:00
dm-log.c [PATCH] device-mapper log bitset: fix big endian find_next_zero_bit 2006-02-02 15:07:13 -08:00
dm-log.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-mpath.c [PATCH] mempool: use mempool_create_slab_pool() 2006-03-26 08:57:00 -08:00
dm-mpath.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-path-selector.c BUG_ON() Conversion in md/dm-path-selector.c 2006-03-26 18:21:58 +02:00
dm-path-selector.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-raid1.c [PATCH] dm: remove SECTOR_FORMAT 2006-03-27 08:44:58 -08:00
dm-round-robin.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-snap.c [PATCH] dm snapshot: fix kcopyd destructor 2006-03-27 08:44:59 -08:00
dm-snap.h [PATCH] device-mapper snapshot: load metadata on creation 2006-02-01 08:53:10 -08:00
dm-stripe.c [PATCH] dm: remove unnecessary typecast 2006-03-27 08:45:00 -08:00
dm-table.c [PATCH] dm/md dependency tree in sysfs: dm to use bd_claim_by_disk 2006-03-27 08:45:00 -08:00
dm-target.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-zero.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm.c [PATCH] dm store geometry 2006-03-27 08:44:59 -08:00
dm.h [PATCH] dm store geometry 2006-03-27 08:44:59 -08:00
faulty.c [PATCH] md: allow array level to be set textually via sysfs 2006-01-06 08:34:09 -08:00
kcopyd.c [PATCH] dm snapshot: fix kcopyd destructor 2006-03-27 08:44:59 -08:00
kcopyd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linear.c [PATCH] md: allow array level to be set textually via sysfs 2006-01-06 08:34:09 -08:00
md.c [PATCH] md: Allow stripes to be expanded in preparation for expanding an array 2006-03-27 08:45:01 -08:00
mktables.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath.c [PATCH] mempool: use common mempool kzalloc allocator 2006-03-26 08:56:59 -08:00
raid0.c [PATCH] md: Assorted little md fixes 2006-02-03 08:32:00 -08:00
raid1.c [PATCH] md: Fix several raid1 bugs which cause a memory leak 2006-03-09 19:47:37 -08:00
raid5.c [PATCH] md: Infrastructure to allow normal IO to continue while array is expanding 2006-03-27 08:45:01 -08:00
raid6.h [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
raid6algos.c [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
raid6altivec.uc [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
raid6int.uc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6main.c [PATCH] md: Allow stripes to be expanded in preparation for expanding an array 2006-03-27 08:45:01 -08:00
raid6mmx.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6recov.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse2.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6x86.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid10.c [PATCH] md: Assorted little md fixes 2006-02-03 08:32:00 -08:00
unroll.pl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xor.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00