--- /dev/null
+#! /bin/bash
+# FS QA Test No. shared/005
+#
+# Test multiple fallocate collapse range calls on same file.
+# For different blocksizes, collapse a single alternate block multiple times
+# until the file is left with 80 blocks and as much number of extents.
+# Also check for file system consistency after completing this operation
+# for each blocksize.
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 Samsung Electronics. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs xfs ext4
+_supported_os Linux
+
+_require_scratch
+_require_xfs_io_fiemap
+_require_xfs_io_falloc_collapse
+_do_die_on_error=y
+testfile=$SCRATCH_MNT/$seq.$$
+BLOCKS=10240
+
+for (( BSIZE = 1024; BSIZE <= 4096; BSIZE *= 2 )); do
+
+ length=$(($BLOCKS * $BSIZE))
+ case $FSTYP in
+ xfs)
+ _scratch_mkfs -b size=$BSIZE >> $seqres.full 2>&1
+ ;;
+ ext4)
+ _scratch_mkfs -b $BSIZE >> $seqres.full 2>&1
+ ;;
+ esac
+ _scratch_mount >> $seqres.full 2>&1
+
+ # Write file
+ $XFS_IO_PROG -f -c "pwrite 0 $length" -c fsync $testfile > /dev/null
+
+ # Collapse alternate blocks
+ for (( i = 1; i <= 7; i++ )); do
+ for (( j=0; j < $(($BLOCKS/(2**$i))); j++ )); do
+ offset=$(($j*$BSIZE))
+ $XFS_IO_PROG -c "fcollapse $offset $BSIZE" $testfile > /dev/null
+ done
+ done
+
+ # Check if 80 extents are present
+ $XFS_IO_PROG -c "fiemap -v" $testfile | grep "^ *[0-9]*:" |wc -l
+
+ _check_scratch_fs
+ if [ $? -ne 0 ]; then
+ status=1
+ exit
+ fi
+
+ umount $SCRATCH_MNT
+done
+
+# success, all done
+status=0
+exit