st: improve m0t1fs test, make it less greedy

When balloc is tested, 40 200GB files are created, which
requires about 8GB + parity data + BE data ~ 10GB of disk
space and takes a lot of time to pass this part of the test.

Solution: create twice less amount of the files. The test
is still valid, but requires twice less space and time.

Signed-off-by: Andriy Tkachuk <andriy.tkachuk@seagate.com>

m0t1fs/linux_kernel/st/m0t1fs_client_inc.sh

@@ -794,34 +794,34 @@ m0t1fs_big_bs_io_test()
 # This test does large file creation and write with large block-size.
 # It also checks the disk space usage before and after the written,
 # and after file deletion. This check is to verify balloc alloc/free.
-# This test writes 8GB data. It requires at least 8GB disk space in test dir.
+# This test writes 4GB of data. It requires at least 7GB of disk space.
 m0t1fs_test_MOTR_2099()
 {
 	local rc=0
 	mount_m0t1fs $MOTR_M0T1FS_MOUNT_DIR || rc=1
 
-	df $MOTR_M0T1FS_MOUNT_DIR -h
+	df $MOTR_M0T1FS_MOUNT_DIR
 	used_before=`df $MOTR_M0T1FS_MOUNT_DIR --output=used | tail -n 1`
-	for i in 0:00{0..9}{0..3}; do
-		# This is to create 40 files, 200MB for each, 8GB in total.
+	for i in 0:00{0..9}{0..1}; do
+		# This is to create 20 files, 200MB each, 8GB in total.
 		m0t1fs_file=$MOTR_M0T1FS_MOUNT_DIR/${i}
 		touch_file $m0t1fs_file 8192 && run "dd if=/dev/zero of=$m0t1fs_file bs=200M count=1" || rc=1
 	done
-	df $MOTR_M0T1FS_MOUNT_DIR -h
+	df $MOTR_M0T1FS_MOUNT_DIR
 	used_after=`df $MOTR_M0T1FS_MOUNT_DIR --output=used | tail -n 1`
-	for i in 0:00{0..9}{0..3}; do
+	for i in 0:00{0..9}{0..1}; do
 		m0t1fs_file=$MOTR_M0T1FS_MOUNT_DIR/${i}
 		rm -f $m0t1fs_file
 	done
-	df $MOTR_M0T1FS_MOUNT_DIR -h
+	df $MOTR_M0T1FS_MOUNT_DIR
 	used_delete=`df $MOTR_M0T1FS_MOUNT_DIR --output=used | tail -n 1`
 	echo "used_before used_after used_delete $used_before $used_after $used_delete"
 	if [ $used_before -ne $used_delete ] ; then
 		echo "balloc space leak? After deletion, used blocks are not the same as before."
 		rc=1
 	fi
 
-	total_blocks=`expr 200 \* 40 \* 1024` #in 1K blocks
+	total_blocks=`expr 200 \* 20 \* 1024` #in 1K blocks
 	echo "total_blocks = $total_blocks"
 	if [ $used_after -le $total_blocks ] ; then
 		echo "Are you kidding? The used blocks are less than expected."