tests: catch some fsadm tricky paths

When user is renaming a device, we are getting into troubles.
We needs to recognize which case is actually supportable by fsadm.

test/shell/fsadm-renamed.sh

@@ -0,0 +1,98 @@
+#!/bin/sh
+# Copyright (C) 2017 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
+
+test_description='Exercise fsadm operation on renamed device'
+SKIP_WITH_LVMLOCKD=1
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+aux prepare_vg 1 80
+
+vg_lv=$vg/$lv1
+vg_lv_ren=${vg_lv}_renamed
+
+dev_vg_lv="$DM_DEV_DIR/$vg_lv"
+dev_vg_lv_ren="$DM_DEV_DIR/$vg_lv_ren"
+
+mount_dir="mnt"
+mount_space_dir="mnt space dir"
+mount_dolar_dir="mnt \$SPACE dir"
+# for recursive call
+export LVM_BINARY=$(which lvm)
+
+test ! -d "$mount_dir" && mkdir "$mount_dir"
+test ! -d "$mount_space_dir" && mkdir "$mount_space_dir"
+test ! -d "$mount_dolar_dir" && mkdir "$mount_dolar_dir"
+
+cleanup_mounted_and_teardown()
+{
+	umount "$mount_dir" || true
+	umount "$mount_space_dir" || true
+	umount "$mount_dolar_dir" || true
+	aux teardown
+}
+
+# Test for block sizes != 1024 (rhbz #480022)
+trap 'cleanup_mounted_and_teardown' EXIT
+
+# Iterate over supported filesystems
+for i in mkfs.ext3 mkfs.xfs mkfs.reiserfs
+do
+
+if not which "$i" ; then
+	echo "Skipping tests for missing $i"
+	continue
+fi
+
+lvcreate -n $lv1 -L20M $vg
+
+case "$i" in
+*ext3)		MKFS_ARGS="-b1024 -j" ;;
+*xfs)		MKFS_ARGS="-l internal,size=1000b -f" ;;
+*reiserfs)	MKFS_ARGS="-s 513 -f" ;;
+esac
+
+echo "$i"
+"$i" $MKFS_ARGS "$dev_vg_lv"
+
+mount "$dev_vg_lv" "$mount_dir"
+
+lvrename $vg_lv $vg_lv_ren
+
+mount | grep $vg
+
+# fails on renamed LV
+fail lvresize -L+10M -r $vg_lv_ren
+
+# fials on unknown mountpoint  (FIXME: umount)
+not umount "$dev_vg_lv"
+
+lvcreate -L20 -n $lv1 $vg
+"$i" $MKFS_ARGS "$dev_vg_lv"
+
+mount "$dev_vg_lv" "$mount_dolar_dir"
+
+cat /proc/self/mountinfo
+
+not lvresize -L+10M -r $vg_lv_ren
+
+umount "$mount_dir"
+
+lvresize -L+10M -r $vg_lv
+
+umount "$mount_dolar_dir"
+
+lvremove -ff $vg
+
+done
+
+vgremove -ff $vg