David Teigland [Tue, 8 Aug 2023 21:57:22 +0000 (16:57 -0500)]
lvconvert swapmetadata: fix lvmlockd locking
The lockd lock needs to be freed for the LV that is becoming
the new metadata LV, and a new lockd lock needs to be created
for the old metadata LV that is becoming an independent LV.
Fixes b3e45219c2f4
Peter Rajnoha [Mon, 31 Jul 2023 11:37:34 +0000 (13:37 +0200)]
report: fix pv_major and pv_minor report field type
We incorrectly marked pv_major and pv_minor fields as being of string
type, even though the values were already correctly handled as integers
internally. This confused -S|--select that tried to compare string
values instead of integers.
Previous fix was invalid (after some in-place shuffling)
'dd' copied goes to 'stderr' so we need to catch all output.
Grep needs to check output of tee tool.
Ensure 'C' locales are in use with 'dd'.
Use cachepool name for create name for metadata backup LV.
(so we do not generate 2 'sequences' of metadata filenames.)
Move path preparion before handling _pmspare.
Also drop extra call to sync_local_dev_names() as it's
already got in sync with call of exec_cmd().
When repair thinpool or cachepool, lvm2 leaves original metadata
volume backup. To avoid potential damage of those data, mark such
volume as 'read-only' and also allow user to use --setactivationskip
option for this volume.
TODO: likely better default would be to automatically skip, but
that might need some more thinking about recovery reporting doc.
Replace the use of internal /dev/mapper names with the use of
public LV names /dev/vg/lv for use with repair tools.
For this make the activation of _pmspare LV to be handled as
a component activation with public name.
Metadata is already atomatically activated this way (as readonly).
So if there is any 'error' happening, we leave public LVs in
system.
Pass more args with some 'aux' commands:
wipefs_a, enable_dev, disable_dev
(so it's a bit more efficient using single udev_wait call).
Use prepare_vg instead of prepare_pvs.
Keep using test directory for created files.
Trap errors and remove brd in this case.
Use some shell builtins to reduce fork count.
Use "$VAR".
Run 'pvs' with devlist (so not acceing other system devices).
lvresize --usepolicy requires resized LVs to be active.
(So it's not only required for shared VG).
The test for active pool needs to use lv_info to query 'layer'
otherwise the pool is considered inactive if it was not activated
explicitely - thun 'implicit' activation with VDO or ThinLV was
not managed by --usepolicy option.
Some linkers do need libdevmapper-event-lvm2.so.2.03,
so add also this symlink to the tests /lib dir.
This fixes the need to use previous LD_LIBRARY_PATH complex
setting and now works with much shorter list.
Last commit c38b668fc3ead664a35130c1acec63518630d1dc was pushed
with type 'scanf' instead of 'sscanf' needed for buffer reading.
Interestingly this caused scanning from 'stdin' descriptor and
thus failures in lvm shell usage.
The code in init_log_file relies on the process name (COMM) to not
contain whitespaces. This change fixes it by looking up the right-most
parenthesis to safely jump past COMM.
For more context see:
https://www.openwall.com/lists/oss-security/2022/12/21/6
Code is only used with testing, so it should have no impact on regular
users.
Reported-by: Hugues Evrard <hevrard@google.com>
mm
With 3596558861e62ca0c6f37bfba6a4e80e46dcca47 it's been introduced
a more fine grained description.
However 'disabled' might be actually more confusing then empty field,
so keep only the info about 'not enabled'aka dmevend is not allowed
to monitor LV which otherwise could be monitored.
Update pool conversion function to handle also conversion of
thick LV to thin LV by moving thick LV into thin pool data LV
and creating fully provissioned thin LV on top of this volume.
Reworking existing conversion to use insert_layer_for_lv co
the uuid is now kept with thin-pool - this should however not
really matter as we are doing full deactivation & activation cycle.
With conversion to thin LV user can use same set of arguments
to set chunk-size.
TODO: add some smart code to decide best values for chunks sizes.
Enable support to cache thin/error/zero virtual targets.
Use can now select whether he want to cache whole thin-pool,
or an individual thin volume out of whole thin-pool.
Support using zero and error LVs as data volume for
cachepool is possibly useful for benchmarking, not much
can be expected from such setup.
Avoid activation when going to skip zeroing of 'error' segtype
(so it's not erroring out).
Also skip zeroing for 'zero' segtype LV (already being zero).
Zdenek Kabelac [Thu, 29 Jun 2023 21:19:09 +0000 (23:19 +0200)]
snapshot: no error when extending above max size
When lvm2 calculates the maximal usable COW size and crops the user
requested size to this value, don't return the error result from
the 'lvextend' operation.
We already apply the same logic when resizing thin-pool beyond
the supported maximal size.
FIXME: The return code error logic here is somewhat fuzzy.
git://sourceware.org / lvm2.git / log