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a59c3731c3
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.)
123 lines
3.7 KiB
Bash
123 lines
3.7 KiB
Bash
#!/bin/sh
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# Copyright (C) 2010-2012 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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. lib/test
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which mkfs.ext3 || skip
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lvdev_() {
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echo "$DM_DEV_DIR/$1/$2"
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}
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snap_lv_name_() {
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echo ${1}_snap
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}
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setup_merge_() {
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local VG_NAME=$1
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local LV_NAME=$2
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local NUM_EXTRA_SNAPS=${3:-0}
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local BASE_SNAP_LV_NAME=$(snap_lv_name_ $LV_NAME)
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lvcreate -n $LV_NAME -l 50%FREE $VG_NAME
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lvcreate -s -n $BASE_SNAP_LV_NAME -l 20%FREE ${VG_NAME}/${LV_NAME}
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mkfs.ext3 "$(lvdev_ $VG_NAME $LV_NAME)"
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if [ $NUM_EXTRA_SNAPS -gt 0 ]; then
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for i in `seq 1 $NUM_EXTRA_SNAPS`; do
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lvcreate -s -n ${BASE_SNAP_LV_NAME}_${i} -l 20%FREE ${VG_NAME}/${LV_NAME}
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done
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fi
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}
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aux prepare_vg 1 100
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mkdir test_mnt
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# test full merge of a single LV
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setup_merge_ $vg $lv1
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# now that snapshot LV is created: test if snapshot-merge target is available
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aux target_at_least snapshot-merge 1 0 0 || skip
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# make sure lvconvert --merge requires explicit LV listing
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not lvconvert --merge 2>err
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lvconvert --merge $vg/$(snap_lv_name_ $lv1)
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lvremove -f $vg/$lv1
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# test that an actively merging snapshot may not be removed
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setup_merge_ $vg $lv1
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lvconvert -i+100 --merge --background $vg/$(snap_lv_name_ $lv1)
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not lvremove -f $vg/$(snap_lv_name_ $lv1)
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lvremove -f $vg/$lv1
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# "onactivate merge" test
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setup_merge_ $vg $lv1
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mount "$(lvdev_ $vg $lv1)" test_mnt
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lvconvert --merge $vg/$(snap_lv_name_ $lv1)
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# -- refresh LV while FS is still mounted (merge must not start),
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# verify 'snapshot-origin' target is still being used
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lvchange --refresh $vg/$lv1
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umount test_mnt
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dm_table $vg-$lv1 | grep " snapshot-origin "
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# -- refresh LV to start merge (now that FS is unmounted),
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# an active merge uses the 'snapshot-merge' target
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lvchange --refresh $vg/$lv1
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# check whether it's still merging - or maybe got already merged (slow test)
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dm_table $vg-$lv1 | grep " snapshot-merge " || dm_table $vg-$lv1 | grep " linear "
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# -- don't care if merge is still active; lvremove at this point
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# may test stopping an active merge
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lvremove -f $vg/$lv1
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# "onactivate merge" test
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# -- deactivate/remove after disallowed merge attempt, tests
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# to make sure preload of origin's metadata is _not_ performed
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setup_merge_ $vg $lv1
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mount "$(lvdev_ $vg $lv1)" test_mnt
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lvconvert --merge $vg/$(snap_lv_name_ $lv1)
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# -- refresh LV while FS is still mounted (merge must not start),
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# verify 'snapshot-origin' target is still being used
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lvchange --refresh $vg/$lv1
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umount test_mnt
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dm_table $vg-$lv1 | grep " snapshot-origin " >/dev/null
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lvremove -f $vg/$lv1
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# test multiple snapshot merge; tests copy out that is driven by merge
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setup_merge_ $vg $lv1 1
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lvconvert --merge $vg/$(snap_lv_name_ $lv1)
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lvremove -f $vg/$lv1
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# test merging multiple snapshots that share the same tag
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setup_merge_ $vg $lv1
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setup_merge_ $vg $lv2
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lvchange --addtag this_is_a_test $vg/$(snap_lv_name_ $lv1)
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lvchange --addtag this_is_a_test $vg/$(snap_lv_name_ $lv2)
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lvconvert --merge @this_is_a_test
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lvs $vg >out
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not grep $(snap_lv_name_ $lv1) out
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not grep $(snap_lv_name_ $lv2) out
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lvremove -f $vg/$lv1 $vg/$lv2
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# FIXME following tests would need to poll merge progress, via periodic lvs?
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# Background processes don't lend themselves to lvm testsuite...
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# test: onactivate merge of a single lv
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# test: do onactivate, deactivate the origin LV, reactivate the LV, merge should resume
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# test: multiple onactivate merge
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vgremove -f $vg
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