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In order to support striped raid5/6/10 LV reshaping (change
of LV type, stripesize or number of legs), this patch
introduces the changes to call the reshaping infratructure
from lv_raid_convert().
Changes:
- add reshaping calls from lv_raid_convert()
- add command definitons for reshaping to tools/command-lines.in
- fix raid_rimage_extents()
- add 2 new test scripts lvconvert-raid-reshape-linear_to_striped.sh
and lvconvert-raid-reshape-striped_to_linear.sh to test
the linear <-> striped multi-step conversions
- add lvconvert-raid-reshape.sh reshaping tests
- enhance lvconvert-raid-takeover.sh with new raid10 tests
Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
Add simple helper/wrapper check function to check result
of dmsetup call i.e.:
check grep_dmsetup table vg-lv "grep_expected"
check grep_dmsetup status vg-lv -v "grep_unexpected"
Rewrite check lv_on and add new lv_tree_on
Move more pvmove test unrelated code out to check & get sections
(so they do not obfuscate trace output unnecesserily)
Use new lv_tree_on()
NOTE: unsure how the snapshot origin should be accounted here.
Split pmove-all-segments into separate tests for raid and thins
(so the test output properly shows what has been skipped in test)
Update usage of "" around shell vars.
trim needs to trim both sides now.
trim also removes debug.log since it's only called when lvm command
has finished properly (so if something fails afterward, there
is no missleading debug trace in the log)
'die' evaluates given string - so \n could be used for
multiline error report
Also remove debug.log since the command finished properly when we
call 'die'
Note: we should not call 'die' after lvm command failure.
- lvs -o lv_attr has now 10 indicator bits
- use '--ignoremonitoring' instead of the shortcut '--ig' used before (since
it would be ambiguous with new '--ignoreactivationskip')
Test the different RAID lvchange scenarios under snapshot as well.
This patch also updates calculations for where to write to an
underlying PV when testing various syncactions.
'in_sync' was using the last field in the RAID status output as
the location for the sync ratio field. The sync ratio may not always
be the last field, but it will always be the 7th field. So we switch
to using the absolute value rather than computing the last field
index number.
Add make help target.
Add LVM_TEST_PARALLEL to support parallel runs of tests
Work around the problem the dmsetup table/info may return error
by using dmtable and dminfo function that will use 'should'.
(Error happens when some concurently running process removes table
entry while dmsetup command resolves table entries inside the loop.)
Indent
Better shell usage
Function simplification
More usage of 'get' functions
Don't use valgrind tracing for check and get function (faster)
Update shell debugging (PS4, better stacktrace)
Support paths with spaces
Export SCRIPTNAME for external usage
Watch for dmeventd unexpectedly started during test
As the option 'set -e -o pipefail' is very sensite on pipe breaking
stop using '-q' for grep commands.
Otherwise this command (with large enough table) would fail:
dmsetup table | egrep -q
with exit code 141 (128 + SIGPIPE)
As Peter suggested, he prefers to keep '-o pipefail' - so make sure all
piped commands will read the whole output and will not exit too early.
- somewhat neater, more consistent and more readable output
- possible to set any lvm.conf value: aux lvmconf "section/key = value"
- LVM_TEST_NODEBUG to suppress the (lengthy) "## DEBUG" output
- back-substitution on test output ($TESTDIR/$PREFIX -> @TESTDIR@/@PREFIX@)
- support code moved from test/ to test/lib/ --> less clutter
