NeilBrown 51d5668cb2 md: never advance 'events' counter by more than 1. ... When assembling arrays, md allows two devices to have different event counts as long as the difference is only '1'. This is to cope with a system failure between updating the metadata on two difference devices. However there are currently times when we update the event count by 2. This was done to keep the event count even when the array is clean and odd when it is dirty, which allows us to avoid writing common update to spare devices and so allow those spares to go to sleep. This is bad for the above reason. So change it to never increase by two. This means that the alignment between 'odd/even' and 'clean/dirty' might take a little longer to attain, but that is only a small cost. The spares will get a few more updates but that will still be spared (;-) most updates and can still go to sleep. Prior to this patch there was a small chance that after a crash an array would fail to assemble due to the overly large event count mismatch. Signed-off-by: NeilBrown <neilb@suse.de>		2009-08-13 09:54:02 +10:00
..
raid6test	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
.gitignore
bitmap.c	Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block	2009-06-11 11:10:35 -07:00
bitmap.h	md: move headers out of include/linux/raid/	2009-03-31 14:27:03 +11:00
dm-bio-record.h	dm: preserve bi_io_vec when resubmitting bios	2009-04-02 19:55:23 +01:00
dm-crypt.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-delay.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-exception-store.c	dm exception store: really fix type lookup	2009-06-30 15:18:14 +01:00
dm-exception-store.h	dm: use i_size_read	2009-06-22 10:12:14 +01:00
dm-io.c	dm io: retry after barrier error	2009-06-22 10:12:26 +01:00
dm-ioctl.c	dm: enable request based option	2009-06-22 10:12:36 +01:00
dm-kcopyd.c	dm kcopyd: fix callback race	2009-04-09 00:27:17 +01:00
dm-linear.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-log-userspace-base.c	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
dm-log-userspace-transfer.c	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
dm-log-userspace-transfer.h	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
dm-log.c	dm log: fix create_log_context to use logical_block_size of log device	2009-06-22 10:12:33 +01:00
dm-mpath.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
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: path selector use module refcount directly	2009-04-02 19:55:27 +01:00
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 mpath: add queue length load balancer	2009-06-22 10:12:27 +01:00
dm-raid1.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-region-hash.c	dm raid1: keep retrying alloc if mempool_alloc failed	2009-06-22 10:12:13 +01:00
dm-round-robin.c	dm mpath: add start_io and nr_bytes to path selectors	2009-06-22 10:12:27 +01:00
dm-service-time.c	dm mpath: add service time load balancer	2009-06-22 10:12:28 +01:00
dm-snap-persistent.c	dm snapshot: use barrier when writing exception store	2009-06-22 10:12:26 +01:00
dm-snap-transient.c	dm snapshot: move status to exception store	2009-04-02 19:55:35 +01:00
dm-snap.c	dm snapshot: support barriers	2009-06-22 10:12:25 +01:00
dm-stripe.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-sysfs.c	dm: sysfs add suspended attribute	2009-06-22 10:12:29 +01:00
dm-table.c	dm table: pass correct dev area size to device_area_is_valid	2009-07-23 20:30:42 +01:00
dm-target.c	dm target: remove struct tt_internal	2009-04-02 19:55:28 +01:00
dm-uevent.c	md: replace remaining __FUNCTION__ occurrences	2008-04-28 08:58:42 -07:00
dm-uevent.h
dm-zero.c	dm: consolidate target deregistration error handling	2009-01-06 03:04:58 +00:00
dm.c	dm: remove queue next_ordered workaround for barriers	2009-07-23 20:30:40 +01:00
dm.h	dm: remove queue next_ordered workaround for barriers	2009-07-23 20:30:40 +01:00
faulty.c	md: Move check for bitmap presence to personality code.	2009-06-18 08:49:23 +10:00
Kconfig	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
linear.c	md: Use revalidate_disk to effect changes in size of device.	2009-08-03 10:59:58 +10:00
linear.h	md/linear: use call_rcu to free obsolete 'conf' structures.	2009-06-18 08:49:42 +10:00
Makefile	dm raid1: add userspace log	2009-06-22 10:12:35 +01:00
md.c	md: never advance 'events' counter by more than 1.	2009-08-13 09:54:02 +10:00
md.h	Remove deadlock potential in md_open	2009-08-10 12:50:52 +10:00
mktables.c	md/raid6: move raid6 data processing to raid6_pq.ko	2009-03-31 15:09:39 +11:00
multipath.c	md: Push down data integrity code to personalities.	2009-08-03 10:59:47 +10:00
multipath.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid0.c	md: Push down data integrity code to personalities.	2009-08-03 10:59:47 +10:00
raid0.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid1.c	md: Use revalidate_disk to effect changes in size of device.	2009-08-03 10:59:58 +10:00
raid1.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid5.c	md: Use revalidate_disk to effect changes in size of device.	2009-08-03 10:59:58 +10:00
raid5.h	md: convert conf->chunk_size and conf->prev_chunk to sectors.	2009-06-18 08:45:55 +10:00
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: Push down data integrity code to personalities.	2009-08-03 10:59:47 +10:00
raid10.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
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