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Add support for usage of 'dm-snapshot' for doing whole device conversion
in a snapshot which could be merged once the whole conversion has been
made.
This helps with cases where there would be any unexpected failure in the
middle of conversion process and user can continue using original
device until problem in conversion is fixed.
Import tool now uses 'truncate' tool to create a small backend file (20M) for loop device
to hold COW exception store.
Option --vdo-config has been added to allow specifing location of vdo
configuration file.
Option --no-snapshot allows to use import tool without creation of
snapshot, however recovery after finished VDO conversion and unfinished
lvm2 conversion is then very difficult.
Option --uuid-prefix allow to specify DM UUID prefix for snapshot
device.
Use read with -r.
Improve metadata parser to handle volume_geometry bio_offset,
which needs to be substracted from 'region' start_block when present.
This bio_offset block is non-zero i.e. with converted VDO volumes.
Also fix some converted structure value (but they are not in use).
Fix in the code that matches devices to system.devices entries when
the devices have the same serial number. A non-PV device in
system.devices has no pvid value, and the code was segfaulting
when checking the null pvid value.
If we are executing 'report_for_selection' to do an internal report
just for the selection itself (not for display), we can call it more
than once. In that case, we are reusing the same selection handle
(e.g. inside 'process_each_lv_in_vg').
The selection handle has 'report_type' field which is a union of all
report types needed for the report based on selection fields we actually
use.
The 'report_type' is further clarified based on checks and rules inside
'_get_final_report_type' which 'report_for_selection' calls. Then, this
final report type unambiguously identifies proper branch to take in
'report_all_in_{pv,vg,lv}' that is called next.
If the 'report_for_selection' is called more than once with the same
selection handle, we need to make sure that we always restore the report
type to its initial value, so all the rules inside 'report_for_selection'
are applied correctly next time.
This patch fixes the missing restoration of the 'report_type' value in
'selection_handle' that is reused for recurring 'report_for_selection'
calls.
An example scenario where this failed was with selecting an LV for
removal with "lvremove --select" while using a field in the selection
that required extra DM info or DM status call for the LV (that is,
"Logical Volume Device Info Fields" and "Logical Volume Device Status Fields"
as visible in 'lvs -S help').
In previous lvm versions, trailing spaces at the end of a t10 wwid would
be replaced with underscores, so the IDNAME string in system.devices
would look something like "t10.123_". Current versions of lvm ignore
trailing spaces in a t10 wwid, so the IDNAME string used would be
"t10.123". The different values would cause lvm to not recognize a
device in system.devices with the trailing _. Fix this by ignoring
trailing underscores in the IDNAME string from system.devices.
The recent fix 05c2b10c5d ensures that raid LV images are not
using the same devices. This was happening in the lvextend commands
used by this test, so fix the test to use more devices to ensue
redundancy.
vgrename does not support -S|--select, so do not provide a hint about
using it. Instead, provide a hint about using VG uuid directly.
❯ vgs
WARNING: VG name vg1 is used by VGs DXjcSK-gWfu-5gLh-9Kbg-sG49-dtRr-GqXzGL and MVMfyM-sjOa-M2xV-AT4Y-JddR-h4SP-UO5Ttk.
Fix duplicate VG names with vgrename uuid, a device filter, or system IDs.
VG #PV #LV #SN Attr VSize VFree
vg1 1 0 0 wz--n- 124.00m 124.00m
vg1 1 0 0 wz--n- 124.00m 124.00m
(vgrename does not support -S|--select)
❯ vgrename vg1 vg2
WARNING: VG name vg1 is used by VGs DXjcSK-gWfu-5gLh-9Kbg-sG49-dtRr-GqXzGL and MVMfyM-sjOa-M2xV-AT4Y-JddR-h4SP-UO5Ttk.
Fix duplicate VG names with vgrename uuid, a device filter, or system IDs.
Multiple VGs found with the same name: skipping vg1
Use VG uuid in place of the VG name.
(vgchange does support -S|--select)
❯ vgchange --addtag a vg1
WARNING: VG name vg1 is used by VGs DXjcSK-gWfu-5gLh-9Kbg-sG49-dtRr-GqXzGL and MVMfyM-sjOa-M2xV-AT4Y-JddR-h4SP-UO5Ttk.
Fix duplicate VG names with vgrename uuid, a device filter, or system IDs.
Multiple VGs found with the same name: skipping vg1
Use --select vg_uuid=<uuid> in place of the VG name.
In case of e.g. 3 PVs, creating or extending a RaidLV causes SubLV
collocation thus putting segments of diffent rimage (and potentially
larger rmeta) SubLVs onto the same PV. For redundant RaidLVs this'll
compromise redundancy. Fix by detecting such bogus allocation on
lvcreate/lvextend and reject the request.
Check for running (possibly leftover) lvmdbusd running in the
system - as this daemon may interfere with this test as in this
case both be operating on same 'live' data in /run/lvm.
Make test faster by agregating sets of operation to work on a single
created filesystem yet checking all the variants of extension and reduction.
Split 'xfs' part into separate test and convert it for use of the
minimal size 300M nowdays required by mkfs.xfs.
lvreduce uses _lvseg_get_stripes() which was unable to get raid stripe
info with an integrity layer present. This caused lvreduce on a
raid+integrity LV to fail prematurely when checking stripe parameters.
An unhelpful error message about stripe size would be printed.
When lvmcache info is dropped because it's an md component,
then the lvmcache vginfo can also be dropped, but the list
iterator was still using the list head in vginfo, so break
from the loop earlier to avoid it.
Previous commit cause the pvmove could actually be started in unexpected
order - so make sure, we are not starting new pvmove in same VG until
the previous one is started.
Keep backups within test_dir instead of dev_dir (so it doesn't
leak large files there if the tests are run over real /dev dir).
Move restoring of dm_mirror throttling before test_dir is removed.
Not quite sure if this helps anything, some of testing
machines can't reliably remove scsi_debug, reporting
they are in use - but it's not easily reproducible...
aux wait_pvmove_lv_ready() now handles multiple pvmove LVs
at one go - which allows a bit fast checking - although
at some point we may need to switch to use delayed devs
since mirror throttling seems to be no longer working well,
as CPU are getting so fast, that most of data are already
pvmoved before throttling has any chance to do something...
When 'brd' device can be removed (is unused AKA not opened),
remove such device and use again for testing.
Let's assume user has no unused brd device left in the system.
When the 'tests' sometimes fail to cleanup devices, with this
change futher cleanup from some next test may evenually release
brd device and make it available for testing.
