NeilBrown ab69ae12ce md/raid5: be more careful about write ordering when reshaping. ... When we are reshaping an array, it is very important that we read the data from a particular sector offset before writing new data at that offset. In most cases when growing or shrinking an array we read long before we even consider writing. But when restriping an array without changing it size, there is a small possibility that we might have some data to available write before the read has happened at the same location. This would require some stripes to be in cache already. To guard against this small possibility, we check, before writing, that the 'old' stripe at the same location is not in the process of being read. And we ensure that we mark all 'source' stripes as such before allowing new 'destination' stripes to proceed. Signed-off-by: NeilBrown <neilb@suse.de>		2009-03-31 15:26:47 +11:00
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raid6test	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
.gitignore
bitmap.c	md: Make mddev->size sector-based.	2009-03-31 14:33:13 +11:00
bitmap.h	md: move headers out of include/linux/raid/	2009-03-31 14:27:03 +11:00
dm-bio-list.h	dm: bio_list macro renaming	2007-10-20 02:01:11 +01:00
dm-bio-record.h
dm-crypt.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm-delay.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm-exception-store.c	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-exception-store.h	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-io.c	block: fix bad definition of BIO_RW_SYNC	2009-02-18 10:32:00 +01:00
dm-ioctl.c	dm table: rework reference counting	2009-01-06 03:05:10 +00:00
dm-kcopyd.c	block: fix bad definition of BIO_RW_SYNC	2009-02-18 10:32:00 +01:00
dm-linear.c	dm: support barriers on simple devices	2009-01-06 03:05:09 +00:00
dm-log.c	dm log: ensure log bitmap fits on log device	2009-01-06 03:05:02 +00:00
dm-mpath.c	dm mpath: move trigger_event to system workqueue	2009-01-06 03:05:13 +00:00
dm-mpath.h	dm mpath: remove is_active from struct dm_path	2008-10-10 13:36:58 +01:00
dm-path-selector.c	dm: remove dm header from targets	2008-10-21 17:44:59 +01:00
dm-path-selector.h
dm-raid1.c	dm log: move region_size validation	2009-01-06 03:05:01 +00:00
dm-region-hash.c	dm raid1: separate region_hash interface part1	2008-10-21 17:45:06 +01:00
dm-round-robin.c	dm: remove dm header from targets	2008-10-21 17:44:59 +01:00
dm-snap-persistent.c	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-snap-transient.c	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-snap.c	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-snap.h	dm snapshot: extend exception store functions	2009-01-06 03:05:19 +00:00
dm-stripe.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm-sysfs.c	dm: add name and uuid to sysfs	2009-01-06 03:05:12 +00:00
dm-table.c	dm table: rework reference counting	2009-01-06 03:05:10 +00:00
dm-target.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm-uevent.c	md: replace remaining __FUNCTION__ occurrences	2008-04-28 08:58:42 -07:00
dm-uevent.h	dm: uevent generate events	2007-10-20 02:01:26 +01:00
dm-zero.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm.c	dm: add name and uuid to sysfs	2009-01-06 03:05:12 +00:00
dm.h	dm: add name and uuid to sysfs	2009-01-06 03:05:12 +00:00
faulty.c	md: centralize ->array_sectors modifications	2009-03-31 14:59:03 +11:00
Kconfig	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
linear.c	md: centralize ->array_sectors modifications	2009-03-31 14:59:03 +11:00
linear.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
Makefile	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
md.c	md: don't display meaningless values in sysfs files resync_start and sync_speed	2009-03-31 15:24:32 +11:00
md.h	md: add explicit method to signal the end of a reshape.	2009-03-31 15:15:05 +11:00
mktables.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
multipath.c	md: centralize ->array_sectors modifications	2009-03-31 14:59:03 +11:00
multipath.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
raid0.c	md: 'array_size' sysfs attribute	2009-03-31 15:00:31 +11:00
raid0.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
raid1.c	md: 'array_size' sysfs attribute	2009-03-31 15:00:31 +11:00
raid1.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
raid5.c	md/raid5: be more careful about write ordering when reshaping.	2009-03-31 15:26:47 +11:00
raid5.h	md/raid5: prepare for allowing reshape to change layout	2009-03-31 15:20:22 +11:00
raid6algos.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6altivec.uc	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6int.uc	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6mmx.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6recov.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6sse1.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6sse2.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
raid6x86.h	md: fix typo in FSF address	2009-03-31 14:57:37 +11:00
raid10.c	md: 'array_size' sysfs attribute	2009-03-31 15:00:31 +11:00
raid10.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
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