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TEST: Update syncaction test to match latest kernel updates

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The mismatch count reported by a dm-raid kernel target used
to be effectively random, unless it was checked after a
"check" scrubbing action had been performed.  Updates to the
kernel now mean that the mismatch count will be 0 unless a
check has been performed and discrepancies had been found.
This has been the intended behaviour all along.

This patch updates the test suite to handle the change.
This commit is contained in:
Jonathan Brassow 2013-07-19 15:24:34 -05:00
parent ccc29f17b6
commit 6aeb54c77c
1 changed files with 10 additions and 13 deletions
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23
test/shell/lvchange-raid.sh
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@ -141,17 +141,16 @@ run_syncaction_check() {
seek=$(($seek + $size)) # Jump halfway through the RAID image
# Check all is normal
if ! lvs --noheadings -o lv_attr $1/$2 | grep '.*-.$' ||
[ `lvs --noheadings -o raid_mismatch_count $1/$2` != 0 ]; then
# I think this is a kernel bug. It happens randomly after
# a RAID device creation. I think the mismatch count
# should not be set unless a check or repair is run.
if ! aux target_at_least dm-raid 1 5 2; then
# As of version 1.5.2, the mismatch_cnt is non-zero only
# after a 'check' sync action has been performed and only
# if discrepancies have been found.
#
# Neil Brown disagrees that it is a bug. Says mismatch
# count can be anything until a 'check' or 'repair' is
# run.
echo "Strange... RAID has mismatch count after creation."
# Previous to this version, mismatch_cnt was basically
# undefined unless it was queried after a 'check' was
# performed. This meant that unless a 'check' was done,
# the 'm' character in the 'lvs' output could show up
# randomly.
# Run "check" should turn up clean
lvchange --syncaction check $1/$2
@ -176,11 +175,9 @@ run_syncaction_check() {
lvs --noheadings -o lv_attr $1/$2 | grep '.*m.$'
[ `lvs --noheadings -o raid_mismatch_count $1/$2` != 0 ]
# "repair" will fix discrepancies and record number fixed
# "repair" will fix discrepancies
lvchange --syncaction repair $1/$2
aux wait_for_sync $1 $2
lvs --noheadings -o lv_attr $1/$2 | grep '.*m.$'
[ `lvs --noheadings -o raid_mismatch_count $1/$2` != 0 ]
# Final "check" should show no mismatches
# 'lvs' should show results