Mikulas Patocka
ae0b7448e9
dm snapshot: fix on disk chunk size validation
...
Fix some problems seen in the chunk size processing when activating a
pre-existing snapshot.
For a new snapshot, the chunk size can either be supplied by the creator
or a default value can be used. For an existing snapshot, the
chunk size in the snapshot header on disk should always be used.
If someone attempts to load an existing snapshot and has the 'default
chunk size' option set, the kernel uses its default value even when it
is incorrect for the snapshot being loaded. This patch ensures the
correct on-disk value is always used.
Secondly, when the code does use the chunk size stored on the disk it is
prudent to revalidate it, so the code can exit cleanly if it got
corrupted as happened in
https://bugzilla.redhat.com/show_bug.cgi?id=461506 .
Cc: stable@kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-09-04 20:40:43 +01:00
..
raid6test
.gitignore
bitmap.c
bitmap.h
dm-bio-record.h
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 snapshot: fix on disk chunk size validation
2009-09-04 20:40:43 +01:00
dm-exception-store.h
dm exception store: split set_chunk_size
2009-09-04 20:40:41 +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-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 log: userspace add luid to distinguish between concurrent log instances
2009-09-04 20:40:34 +01:00
dm-log-userspace-transfer.c
dm log: userspace add luid to distinguish between concurrent log instances
2009-09-04 20:40:34 +01:00
dm-log-userspace-transfer.h
dm log: userspace add luid to distinguish between concurrent log instances
2009-09-04 20:40:34 +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-path-selector.c
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 raid1: do not allow log_failure variable to unset after being set
2009-09-04 20:40:32 +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: fix on disk chunk size validation
2009-09-04 20:40:43 +01:00
dm-snap-transient.c
dm-snap.c
dm snapshot: implement iterate devices
2009-09-04 20:40:19 +01:00
dm-stripe.c
dm stripe: expose correct io hints
2009-09-04 20:40:25 +01:00
dm-sysfs.c
dm: sysfs add suspended attribute
2009-06-22 10:12:29 +01:00
dm-table.c
dm stripe: expose correct io hints
2009-09-04 20:40:25 +01:00
dm-target.c
dm-uevent.c
dm-uevent.h
dm-zero.c
dm.c
dm multipath: fix oops when request based io fails when no paths
2009-09-04 20:40:16 +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
Fix new incorrect error return from do_md_stop.
2009-08-18 10:35:26 +10:00
md.h
Remove deadlock potential in md_open
2009-08-10 12:50:52 +10:00
mktables.c
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/raid5: Properly remove excess drives after shrinking a raid5/6
2009-08-13 10:41:49 +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
raid6altivec.uc
raid6int.uc
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
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
unroll.pl