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#!/bin/sh
# Copyright (C) 2010 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
. lib/test
which mkfs.ext2 || skip
extend() {
lvextend --use-policies --config "activation { snapshot_extend_threshold = $1 }" $vg/snap
}
write() {
mount "$DM_DEV_DIR/$vg/snap" mnt
dd if=/dev/zero of="mnt/file$1" bs=1k count=$2
umount mnt
}
percent() {
get lv_field $vg/snap snap_percent | cut -d. -f1
}
aux prepare_dmeventd
aux prepare_vg 2
lvcreate -l 8 -n base $vg
mkfs.ext2 "$DM_DEV_DIR/$vg/base"
lvcreate -s -l 4 -n snap $vg/base
mkdir mnt
write 1 4096
pre=$(percent)
extend 50
test $pre -eq $(percent)
write 2 4096
pre=$(percent)
extend 50
test $pre -gt $(percent)
vgremove -f $vg
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