NeilBrown
c148ffdcda
md/raid5: Allow dirty-degraded arrays to be assembled when only party is degraded. ...
Normally is it not safe to allow a raid5 that is both dirty and
degraded to be assembled without explicit request from that admin, as
it can cause hidden data corruption.
This is because 'dirty' means that the parity cannot be trusted, and
'degraded' means that the parity needs to be used.
However, if the device that is missing contains only parity, then
there is no issue and assembly can continue.
This particularly applies when a RAID5 is being converted to a RAID6
and there is an unclean shutdown while the conversion is happening.
So check for whether the degraded space only contains parity, and
in that case, allow the assembly.
Signed-off-by: NeilBrown <neilb@suse.de>
2009-11-13 17:47:00 +11:00
md: drivers/md/unroll.pl replaced with awk analog
2009-10-16 16:25:19 +11:00
md: remove clumsy usage of do_sync_mapping_range from bitmap code
2009-10-16 15:56:01 +11:00
dm table: pass correct dev area size to device_area_is_valid
2009-07-23 20:30:42 +01:00
dm table: pass correct dev area size to device_area_is_valid
2009-07-23 20:30:42 +01:00
dm snapshot: allow chunk size to be less than page size
2009-10-16 23:18:22 +01:00
dm snapshot: use unsigned integer chunk size
2009-10-16 23:18:17 +01:00
dm io: retry after barrier error
2009-06-22 10:12:26 +01:00
Driver-Core: extend devnode callbacks to provide permissions
2009-09-19 12:50:38 -07:00
dm kcopyd: fix callback race
2009-04-09 00:27:17 +01:00
dm table: pass correct dev area size to device_area_is_valid
2009-07-23 20:30:42 +01:00
dm log: userspace fix incorrect luid cast in userspace_ctr
2009-10-16 23:18:15 +01:00
dm/connector: Only process connector packages from privileged processes
2009-10-02 10:54:10 -07:00
dm log: userspace add luid to distinguish between concurrent log instances
2009-09-04 20:40:34 +01:00
dm log: fix create_log_context to use logical_block_size of log device
2009-06-22 10:12:33 +01:00
[SCSI] scsi_dh: Use scsi_dh_set_params() in multipath.
2009-08-22 17:52:15 -05:00
dm mpath: add start_io and nr_bytes to path selectors
2009-06-22 10:12:27 +01:00
dm mpath: add queue length load balancer
2009-06-22 10:12:27 +01:00
bio: first step in sanitizing the bio->bi_rw flag testing
2009-09-11 14:33:31 +02:00
dm raid1: keep retrying alloc if mempool_alloc failed
2009-06-22 10:12:13 +01:00
dm mpath: add start_io and nr_bytes to path selectors
2009-06-22 10:12:27 +01:00
dm mpath: add service time load balancer
2009-06-22 10:12:28 +01:00
dm snapshot: use unsigned integer chunk size
2009-10-16 23:18:17 +01:00
dm snapshot: use unsigned integer chunk size
2009-10-16 23:18:17 +01:00
block: Optimal I/O limit wrapper
2009-09-14 08:24:52 +02:00
dm: sysfs add suspended attribute
2009-06-22 10:12:29 +01:00
dm stripe: expose correct io hints
2009-09-04 20:40:25 +01:00
dm: dec_pending needs locking to save error value
2009-10-16 23:18:15 +01:00
dm: remove queue next_ordered workaround for barriers
2009-07-23 20:30:40 +01:00
md: Move check for bitmap presence to personality code.
2009-06-18 08:49:23 +10:00
Merge branch 'dmaengine' into async-tx-next
2009-09-08 17:55:21 -07:00
md: report device as congested when suspended
2009-09-23 18:10:29 +10:00
md/linear: use call_rcu to free obsolete 'conf' structures.
2009-06-18 08:49:42 +10:00
md: drivers/md/unroll.pl replaced with awk analog
2009-10-16 16:25:19 +11:00
md: allow v0.91 metadata to record devices as being active but not in-sync.
2009-11-13 17:40:48 +11:00
md: report device as congested when suspended
2009-09-23 18:10:29 +10:00
md: remove unnecessary memset from multipath.
2009-09-23 18:16:31 +10:00
md: remove mddev_to_conf "helper" macro
2009-06-16 16:54:21 +10:00
md: report device as congested when suspended
2009-09-23 18:10:29 +10:00
md: remove mddev_to_conf "helper" macro
2009-06-16 16:54:21 +10:00
md: raid1/raid10: handle allocation errors during array setup.
2009-10-16 15:55:44 +11:00
md: remove mddev_to_conf "helper" macro
2009-06-16 16:54:21 +10:00
md/raid5: Allow dirty-degraded arrays to be assembled when only party is degraded.
2009-11-13 17:47:00 +11:00
md: fix problems with RAID6 calculations for DDF.
2009-10-16 16:27:34 +11:00
md: drivers/md/unroll.pl replaced with awk analog
2009-10-16 16:25:19 +11:00
md: drivers/md/unroll.pl replaced with awk analog
2009-10-16 16:25:19 +11:00
md: raid1/raid10: handle allocation errors during array setup.
2009-10-16 15:55:44 +11:00
md: remove mddev_to_conf "helper" macro
2009-06-16 16:54:21 +10:00
md: drivers/md/unroll.pl replaced with awk analog
2009-10-16 16:25:19 +11:00
c148ffdcda