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
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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	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 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 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 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 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 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 snapshot: move status to exception store	2009-04-02 19:55:35 +01:00
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 target: remove struct tt_internal	2009-04-02 19:55:28 +01:00
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 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	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/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	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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