tests: add separate test file for bootloader area support and enhance tests

Enahnce bootloader area test to check whether restoring values from
backup works correctly.

lib/format_text/format-text.c

@@ -1536,11 +1536,11 @@ static int _text_pv_initialise(const struct format_type *fmt,
 		/*
 		 * Calculate new PE start and bootloader area start value.
 		 * Make sure both are properly aligned!
-		 * If PE start can't be aligned because EA is taking
+		 * If PE start can't be aligned because BA is taking
 		 * the whole space, make PE start equal to the PV size
 		 * which effectively disables DA - it will have zero size.
 		 * This needs to be done as we can't have a PV without any DA.
-		 * But we still want to support a PV with EA only!
+		 * But we still want to support a PV with BA only!
 		 */
 		if (rp->ba_size) {
 			pv->ba_start = final_alignment;
@@ -1556,7 +1556,7 @@ static int _text_pv_initialise(const struct format_type *fmt,
 		/*
 		 * Try to keep the value of PE start set to a firm value if
 		 * requested. This is useful when restoring existing PE start
-		 * value (e.g. backups). Also, if creating an EA, try to place
+		 * value (e.g. backups). Also, if creating a BA, try to place
 		 * it in between the final alignment and existing PE start
 		 * if possible.
 		 */

test/shell/pvcreate-bootloaderarea.sh

@@ -0,0 +1,59 @@
+#!/bin/sh
+# Copyright (C) 2014 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='Test pvcreate bootloader area support'
+
+. lib/test
+
+aux prepare_devs 1
+aux lvmconf 'global/suffix=0'
+aux lvmconf 'global/units="b"'
+
+#COMM 'pvcreate sets/aligns bootloader area correctly'
+pvcreate --dataalignment 262144b --bootloaderareasize 614400b "$dev1"
+# ba_start must be aligned based on dataalignment
+# pe_start starts at next dataalignment multiple
+# ba_size is the whole space in between ba_start and pe_start
+check pv_field "$dev1" ba_start "262144"
+check pv_field "$dev1" ba_size "786432"
+check pv_field "$dev1" pe_start "1048576"
+
+#COMM 'pvcreate with booloader area size - test corner cases'
+dev_size=$(pvs -o pv_size --noheadings $dev1)
+pv_size=$[dev_size - 1048576] # device size - 1m pe_start = area for data
+
+# try to use the whole data area for bootloader area, remaining data area is zero then (pe_start = pv_size)
+pvcreate --bootloaderareasize ${pv_size}b --dataalignment 1048576b "$dev1"
+check pv_field "$dev1" pe_start $dev_size
+check pv_field "$dev1" ba_start 1048576
+check pv_field "$dev1" ba_size $pv_size
+
+# try to use the whole data area for bootloader area only and add one more byte - this must error out
+not pvcreate --bootloaderareasize $[pv_size + 1] --dataalignment 1048576b "$dev1" 2>err
+grep "Bootloader area with data-aligned start must not exceed device size" err
+
+# restoring the PV should also restore the bootloader area correctly
+pvremove -ff "$dev1"
+pvcreate --dataalignment 256k --bootloaderareasize 600k "$dev1"
+vgcreate $vg "$dev1"
+vgcfgbackup -f $TESTDIR/vg_with_ba_backup $vg
+pv_uuid=$(get pv_field "$dev1" pv_uuid)
+vgremove -ff $vg
+pvremove -ff "$dev1"
+pvcreate --dataalignment 256k --restorefile $TESTDIR/vg_with_ba_backup --uuid "$pv_uuid" "$dev1"
+check pv_field "$dev1" ba_start "262144"
+check pv_field "$dev1" ba_size "786432"
+check pv_field "$dev1" pe_start "1048576"
+
+# error out when restoring the PV and trying to use overlapping bootloader area
+pvremove -ff "$dev1"
+not pvcreate --restorefile $TESTDIR/vg_with_ba_backup --uuid "$pv_uuid" --bootloaderareasize 1m "$dev1" 2>err
+grep "Bootloader area would overlap data area" err

test/shell/pvcreate-usage.sh

@@ -187,25 +187,3 @@ for ignore in y n; do
 done
 done
 done
-
-#COMM 'pvcreate sets/aligns bootloader area correctly'
-pvcreate --dataalignment 256k --bootloaderareasize 600k "$dev1"
-# ba_start must be aligned based on dataalignment
-# pe_start starts at next dataalignment multiple
-# ba_size is the whole space in between ba_start and pe_start
-check pv_field "$dev1" ba_start "256.00k"
-check pv_field "$dev1" ba_size "768.00k"
-check pv_field "$dev1" pe_start "1.00m"
-
-aux lvmconf 'global/suffix=0'
-aux lvmconf 'global/units="b"'
-#COMM 'pvcreate with booloader area size - test corner cases
-dev_size=$(pvs -o pv_size --noheadings $dev1)
-pv_size=$[dev_size - 1048576] # device size - 1m pe_start = area for data
-# try to use the whole data area for bootloader area
-pvcreate --bootloaderareasize ${pv_size}b --dataalignment 1048576b "$dev1"
-check pv_field "$dev1" pe_start $dev_size
-check pv_field "$dev1" ba_start 1048576
-check pv_field "$dev1" ba_size ${pv_size}
-not pvcreate --bootloaderareasize $[pv_size + 1] --dataalignment 1048576b "$dev1" 2>err
-grep "Bootloader area with data-aligned start must not exceed device size" err