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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2013 Samsung Electronics. All Rights Reserved.
#
# FS QA Test No. generci/017
#
# 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.
. ./common/preamble
_begin_fstest auto prealloc collapse fiemap
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
_require_xfs_io_command "fiemap"
_require_xfs_io_command "fcollapse"
_do_die_on_error=y
_scratch_mkfs > /dev/null 2>&1
_scratch_mount
testfile=$SCRATCH_MNT/$seq.$$
BLOCKS=10240
BSIZE=`_get_file_block_size $SCRATCH_MNT`
length=$(($BLOCKS * $BSIZE))
# 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
# success, all done
status=0
exit
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