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OpenCloudOS-Kernel/drivers/md
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NeilBrown ccfcc3c10b [PATCH] md: Core of raid5 resize process 
This patch provides the core of the resize/expand process.

sync_request notices if a 'reshape' is happening and acts accordingly.

It allocated new stripe_heads for the next chunk-wide-stripe in the target
geometry, marking them STRIPE_EXPANDING.

Then it finds which stripe heads in the old geometry can provide data needed
by these and marks them STRIPE_EXPAND_SOURCE.  This causes stripe_handle to
read all blocks on those stripes.

Once all blocks on a STRIPE_EXPAND_SOURCE stripe_head are read, any that are
needed are copied into the corresponding STRIPE_EXPANDING stripe_head.  Once a
STRIPE_EXPANDING stripe_head is full, it is marks STRIPE_EXPAND_READY and then
is written out and released.

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: Core of raid5 resize process 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: Core of raid5 resize process 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