NeilBrown c8f517c444 md/raid5 revise rules for when to update metadata during reshape ... We currently update the metadata : 1/ every 3Megabytes 2/ When the place we will write new-layout data to is recorded in the metadata as still containing old-layout data. Rule one exists to avoid having to re-do too much reshaping in the face of a crash/restart. So it should really be time based rather than size based. So change it to "every 10 seconds". Rule two turns out to be too harsh when restriping an array 'in-place', as in that case the metadata much be updates for every stripe. For the in-place update, it can only possibly be safe from a crash if some user-space program data a backup of every e.g. few hundred stripes before allowing them to be reshaped. In that case, the constant metadata update is pointless. So only update the metadata if the new metadata will report that the end of the 'old-layout' data is beyond where we are currently writing 'new-layout' data. Signed-off-by: NeilBrown <neilb@suse.de>		2009-03-31 15:28:40 +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-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-path-selector.c
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-round-robin.c
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
dm-uevent.h
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: remove CONFIG_MD_RAID_RESHAPE config option.	2009-03-31 15:27:05 +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 revise rules for when to update metadata during reshape	2009-03-31 15:28:40 +11:00
raid5.h	md/raid5 revise rules for when to update metadata during reshape	2009-03-31 15:28:40 +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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