* [PATCH] Remove uninitialized cow if snapshot creation fails
@ 2007-11-09 16:40 Jun'ichi Nomura
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From: Jun'ichi Nomura @ 2007-11-09 16:40 UTC (permalink / raw)
To: lvm-devel
Similar to the mirror log cleanup, snapshot cow also should be
removed if the snapshot creation fails.
# dmsetup create --notable testvg-lvol1-cow
# lvcreate -s -l1 -n lvol1 testvg/lvol0
/dev/testvg/lvol1: not found: device not cleared
Aborting. Failed to wipe snapshot exception store. Remove new LV and retry.
# lvs
LV VG Attr LSize Origin Snap% Move Log Copy%
lvol0 testvg -wi-a- 4.00M
lvol1 testvg -wi--- 4.00M
Attached patch removes the incomplete COW LV if the snapshot
creation fails.
A test script is also attached.
Thanks,
--
Jun'ichi Nomura, NEC Corporation of America
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2007-11-09 16:40 [PATCH] Remove uninitialized cow if snapshot creation fails Jun'ichi Nomura
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