7 Commits

Author	SHA1	Message	Date
Mike Snitzer	57d31c99cc	Require logical volume(s) to be explicitly named for lvconvert --merge.	2010-08-03 20:22:31 +00:00
Mike Snitzer	60267bdce8	Disallow the direct removal of a merging snapshot. ... Allow lv_remove_with_dependencies() to know the top-level LV that was requested to be removed (otherwise it recurses and we lose context). A merging snapshot cannot be removed directly but the associated origin can be. Disallow removal of a merging snapshot unless the associated origin is also being removed.	2010-04-23 19:27:10 +00:00
Mike Snitzer	1f661c5dd8	When removing a snapshot avoid preloading the origin if the ... snapshot-merge target is not active.	2010-04-23 02:57:39 +00:00
Mike Snitzer	d9933eaf1b	Add additional test to start the snapshot merge (which had just failed ... because an FS was mounted -- origin was still open).	2010-04-19 22:44:42 +00:00
Petr Rockai	ed5686d981	Refactor the test utilities, dropping the legacy test-lib.sh and curtailing ... lvm-utils.sh. Clears up lots of unused code, should have little observable impact (it does change test directory layout slightly).	2010-04-07 14:46:26 +00:00
Mike Snitzer	234b12480e	lvconvert --merge @tag support ... Switch lvconvert's --merge code over to using process_each_lv(). Doing so adds support for a single 'lvconvert --merge' to start merging multiple LVs (which includes @tag expansion). Add 'lvconvert --merge @tag' testing to test/t-snapshot-merge.sh Adjust man/lvconvert.8.in to reflect these expanded capabilities. The lvconvert.c implementation requires rereading the VG each iteration of process_each_lv(). Otherwise a stale VG instance associated with the LV passed to lvconvert_single_merge() would result in stale VG metadata being written back out to disk. This overwrote new metadata that was written when a previous snapshot LV finished merging (via lvconvert_poll). This is only an issue when merging multiple LVs that share the same VG (a single VG is typical for most LVM configurations on system disks). In the end this new support is very useful for performing a "system rollback" that requires multiple snapshot LVs be merged to their respective origin LV. The yum-utils 'fs-snapshot' plugin tags all snapshot LVs that it creates with a common 'snapshot_tag' that is unique to the yum transaction. Rolling back a yum transaction, that created LVM snapshots with the tag 'yum_20100129133223', is as simple as: lvconvert --merge @yum_20100129133223 Signed-off-by: Mike Snitzer <snitzer@redhat.com>	2010-02-05 22:44:37 +00:00
Mike Snitzer	fc6dc34429	add test/t-snapshot-merge.sh to provide coverage of snapshot-merge support	2010-01-19 22:55:00 +00:00