Jonathan Earl Brassow da23255cc9 Fix for bug 732142: Unsafe table load during mirror image split ... There was a bad sequence: *) Make changes to LV layout to split images (e.g. 4-way -> 2-way/2-way) 1) vg_write, suspend_lv(original_mirror), vg_commit 2) activate_lv(newly_split_lv) 3) resume_lv(original_mirror) Step #2 is not allowed. However, without it, the resume of the original mirror will also resume its former sub-LVs - making it impossible to activate the newly split LV due to the changes in layering, pointers, and names that had already been made. Additionally, the resume or the original brings the sub-lv's online with names that differ from the metadata on disk - also a no-no. Thus, the split must be done in stages such that the active LVs always reflect what is in the committed LVM metadata. First, alter the original mirror by releasing the images. The images are made visible and independent as an intermediate stage. (This way, we can have consistency between LVM metadata and active LVs.) The second stage collects the recently split LVs, deactivates them, forms them into a mirror if necessary, and then activates them. It is a bit of a circuitous method, but it is the only way to split a mirror from a mirror and obey these general rules: 1) Never [de]activate sub-lvs when the top-level LV is suspended 2) Avoid having active LVs that differ from the description in the LVM metadata Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>		2011-09-01 19:22:11 +00:00
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activate	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
cache	Use size_t return type	2011-09-01 10:25:22 +00:00
commands	Keep the old-style prototypes	2011-09-01 13:25:50 +00:00
config	Replace const usage of dm_config_find_node with more appropriate value-lookup	2011-08-31 15:19:19 +00:00
datastruct	Revert the #include changes. Need to fix this at the #include site for now, and	2011-07-18 14:34:33 +00:00
device	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
display	Fix some compile warnings on RHEL5	2011-03-01 20:17:56 +00:00
error	Add lv_activate_opts structure	2011-06-17 14:14:19 +00:00
filters	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
format1	Defer writing PV labels to vg_write.	2011-06-01 19:29:31 +00:00
format_pool	Replace free_vg with release_vg	2011-08-10 20:25:29 +00:00
format_text	Use size_t return type	2011-09-01 10:25:22 +00:00
freeseg	Replace malloc with zalloc when creating segment_type's	2011-03-25 21:59:42 +00:00
label	Report sector containing label in verbose message.	2011-06-01 15:30:36 +00:00
locking	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
log	Trivial, add void to ignore dm_snprinf result	2011-08-11 19:21:42 +00:00
metadata	Fix for bug 732142: Unsafe table load during mirror image split	2011-09-01 19:22:11 +00:00
mirror	Replace const usage of dm_config_find_node with more appropriate value-lookup	2011-08-31 15:19:19 +00:00
misc	Match the prototype old-style declaration	2011-09-01 13:30:11 +00:00
mm	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
raid	Replace const usage of dm_config_find_node with more appropriate value-lookup	2011-08-31 15:19:19 +00:00
replicator	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
report	Remove meaningless const type qualifiers on cast type	2011-08-04 14:30:51 +00:00
snapshot	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
striped	Replace const usage of dm_config_find_node with more appropriate value-lookup	2011-08-31 15:19:19 +00:00
thin	Reflect dm_config API update	2011-09-01 10:16:32 +00:00
unknown	Move the core of the lib/config/config.c functionality into libdevmapper,	2011-08-30 14:55:15 +00:00
uuid	Revert the #include changes. Need to fix this at the #include site for now, and	2011-07-18 14:34:33 +00:00
zero	Add lv_activate_opts structure	2011-06-17 14:14:19 +00:00
Makefile.in	Initial code layout for thin provisioning target	2011-08-24 08:27:49 +00:00