Fix various problems in tests

- PPC uses 64k page, some caculations are wrong in tests
- file utility is buggy on PPC and cannot detect swap, use blkid instead
- read ahead is quietly rounded down according to page size
(for now use some common divisor value in test)

test/t-pvcreate-operation.sh

@@ -112,6 +112,6 @@ not pvcreate --uuid $uuid2 --restorefile $backupfile $dev2
 # pvcreate wipes swap signature when forced
 dd if=/dev/zero of=$dev1 bs=1024 count=64
 mkswap $dev1
-file -s $dev1 | grep "swap file"
+blkid -c /dev/null $dev1 | grep "swap"
 pvcreate -f $dev1
-file -s $dev1 | not grep "swap file"
+blkid -c /dev/null $dev1 | not grep "swap"

test/t-pvcreate-usage.sh

@@ -10,6 +10,7 @@
 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 test_description='Test pvcreate option values'
+PAGESIZE=$(getconf PAGESIZE)
 
 . ./test-utils.sh
 
@@ -101,11 +102,19 @@ check_pv_field_ $dev1 pe_start 512.00K
 pvcreate --metadatasize 100k --dataalignment 100k $dev1
 check_pv_field_ $dev1 pe_start 200.00K
 
+# metadata area start is aligned according to pagesize
+# pagesize should be 64k or 4k ...
+if [ $PAGESIZE -eq 65536 ] ; then
+	pv_align="192.50K"
+else
+	pv_align="133.00K"
+fi
+
 pvcreate --metadatasize 128k --dataalignment 3.5k $dev1
-check_pv_field_ $dev1 pe_start 133.00K
+check_pv_field_ $dev1 pe_start $pv_align
 
 pvcreate --metadatasize 128k --metadatacopies 2 --dataalignment 3.5k $dev1
-check_pv_field_ $dev1 pe_start 133.00K
+check_pv_field_ $dev1 pe_start $pv_align
 
 #COMM 'pv with LVM1 compatible data alignment can be convereted'
 #compatible == LVM1_PE_ALIGN == 64k

test/t-read-ahead.sh

@@ -39,8 +39,8 @@ lvdisplay "$vg"/"$lv"
 lvchange -r auto "$vg"/"$lv" 2>&1 | grep auto
 check_lvs_ lv_read_ahead auto
 check_lvs_ lv_kernel_read_ahead 5120
-lvchange -r 400 "$vg/$lv"
-check_lvs_ lv_read_ahead 400
+lvchange -r 640 "$vg/$lv"
+check_lvs_ lv_read_ahead 640
 lvremove -ff "$vg"
 
 #COMM "read ahead is properly inherited from underlying PV"