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lvm2 for a while already optimizes 'vgremove' operation to
a single commit when possible if all LVs can be
easily deactivated.
So the number of LVs doesn't matter much - but the tested
case 'test_delete_non_complete_job' seems to be taking
some time anyway to capture the exception.
So just reducing the running time of the test significatanly
as we don't need to create 64LVs for 4 'execution mode' runs.
Order is used for man page generation (although not completely).
So place 'zero & error' to the end of list.
Keep linear,striped,snapshot in front.
For the rest use alphabetic order.
Move part of the 'inner' loop which is would be otherwise
always production same results for all 'opt_enum' values
out of the loop, so it can be evaluated just once.
Instead of resolving and storing 'command_fn'
withing 'struct command' use just funtion enum
and resolve function pointer just in place,
where it is really needed - first try to resolve
'new style' and fallback to 'old style' named.
Instead of storing command_id as string, direcly
translate string to enum index and use 'command_enum()'
to get string when needed for printing.
This way we can easily detect error in the structure
while parsing it - and we can later avoid separate
'translation' loop.
We can more efficiently use command_name struct to
lookup for lvm_command_enum and avoid many repeated
command name searches since we already know
the enum index that is now stored in 'struct command'.
Constity members in cmdline_context, would be nice, to replace
this static struct with couple function calls.
Also replace some 'while' loops with for loops, so code
is more readable.
Split struct command_name to the constant part (keep the name)
and new 'struct command_name_args' which holds runtime computed
info. To get to the _args part - we can easily use
lvm_command_enum as equivalent index.
Constified part 'struct command_name' is now fully stored
in .data.rel.ro segment, while command_name_args part goes
to .bss segment.
Code will be further reduced with next refactoring.
Refactor code to not allocate memory for rule->opts,
instead use uint16_t array of MAX_RULE_OPTS within cmd_rule.
Also print more info if array would not be enough (>= 8).
Add slight delay for waiting until 'started' dmeventd is
responsing to other 'dmeventd -i' command.
TODO: race observed here is somewhat unclear, might need some more
details
There is no reason to wait for 10sec when removing 'vg' at test
exit - we just need to kill 'sleep 10' process forked from flock.
(Not using 'flock -F' as this flag is not across all machines used
for testing)
This reverts commit d16a8f80e9.
So the correction was OK, however we missed to fix also
cut&paste bug here - as the second check should be
actually checking field->type.
Update definitions to add support for some more VDO options
when converting volumes to be used as thin-pool with vdo data volume.
Split some option in existing OO_LVCONVERT_VDO to OO_LVCONVERT_VDO_POOL
and reused then with OO_LVCONVERT_THINPOOL.
When convert already existing vdopool to be used as
thin-pool backend and user is passinng option for VDO configuration
process them - as we know converted LV is offline, we can do such
change easily instead of telling user to run separate lvchange later.
When converting volumes to be used for thin-pool with VDO, allow
users to control wipesingature behaviour.
By default volumes should be checked against signature, and if
they are present, we promt user whether he wants to process with
conversion and lose i.e. filesystem present on such volume.
Users that want to bypass prompt in script can use either --yes
or they can disable wipe signature -Wn.
