--- /dev/null
+#! /bin/bash
+# FS QA Test No. 301
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+for i in `seq 1 8`; do
+ $XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+done
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks * 2 / 3)) || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 301
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-301/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-301/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-301/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 302
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files.
+# - Directio write to random offsets to scatter CoW reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+for i in `seq 1 8`; do
+ $XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" $testdir/file2 >> $seqres.full
+done
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -le $internal_blks || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 302
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-302/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-302/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-302/file1
+Check extent counts
298 auto quick clone
299 auto aio enospc rw stress
300 auto aio enospc preallocrw stress
+301 auto quick clone
+302 auto quick clone
306 auto quick rw
307 auto quick
308 auto quick
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 180
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - Rewrite the whole file to use up reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $real_blksz 0 $((filesize + 1))" -c "fdatasync" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 180
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-180/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-180/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-180/file1
+d41f6527bc8320364e12ea7076140b8b SCRATCH_MNT/test-180/file2
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 182
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Directio write to random offsets to scatter CoW reservations.
+# - Rewrite the whole file to use up reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $((filesize + 1))" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $real_blksz 0 $((filesize + 1))" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 182
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-182/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-182/file2
+CoW and unmount
+pwrite64: Invalid argument
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-182/file1
+c6ba35da9f73ced20d7781a448cc11d4 SCRATCH_MNT/test-182/file2
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 184
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - falloc the whole file to unshare blocks.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $((filesize + 1))" -c "fdatasync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "falloc 0 $((filesize + 1))" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 184
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-184/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-184/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-184/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 192
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Directio write to random offsets to scatter CoW reservations.
+# - falloc the whole file to unshare blocks.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "falloc 0 $filesize" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 192
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-192/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-192/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-192/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 193
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks * 2 / 3)) || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 193
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-193/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-193/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-193/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 198
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Directio write to random offsets to scatter CoW reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks * 2 / 3)) || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 198
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-198/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-198/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-198/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 200
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Read the whole file into memory.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - fadvise(dontneed) the whole file to evict the pages.
+# - falloc the whole fle to see if the extsz hints still apply.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+cat $testdir/file2 > /dev/null
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "fadvise -d 0 $filesize" -c "fsync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "falloc 0 $filesize" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 200
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-200/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-200/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-200/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 204
+#
+# Test fragmentation after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Read the whole file into memory.
+# - DIO write to random offsets to scatter CoW reservations.
+# - fadvise(dontneed) the whole file to evict the pages.
+# - falloc the whole fle to see if the extsz hints still apply.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+cat $testdir/file2 > /dev/null
+$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "fadvise -d 0 $filesize" -c "fsync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "falloc 0 $filesize" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 204
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-204/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-204/file2
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-204/file1
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 207
+#
+# Test setting the extsz and cowextsz hints:
+# - Ensure that we can set both on a zero-byte file.
+# - Ensure that we can set only cowextsz on a many-byte file.
+# - Ensure that whatever we set we get back later.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 0" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 1048576" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 0" $testdir/file3 >> $seqres.full
+_scratch_remount
+
+echo "Set extsz and cowextsz on zero byte file"
+$XFS_IO_PROG -c "extsize 1048576" $testdir/file1 | _filter_scratch
+$XFS_IO_PROG -c "cowextsize 1048576" $testdir/file1 | _filter_scratch
+
+echo "Set extsz and cowextsz on 1Mbyte file"
+$XFS_IO_PROG -c "extsize 1048576" $testdir/file2 | _filter_scratch
+$XFS_IO_PROG -c "cowextsize 1048576" $testdir/file2 | _filter_scratch
+_scratch_remount
+
+echo "Check extsz and cowextsz settings on zero byte file"
+$XFS_IO_PROG -c "extsize" $testdir/file1 | _filter_scratch
+$XFS_IO_PROG -c "cowextsize" $testdir/file1 | _filter_scratch
+
+echo "Check extsz and cowextsz settings on 1Mbyte file"
+$XFS_IO_PROG -c "extsize" $testdir/file2 | _filter_scratch
+$XFS_IO_PROG -c "cowextsize" $testdir/file2 | _filter_scratch
+
+echo "Set cowextsize and check flag"
+$XFS_IO_PROG -c "cowextsize 1048576" $testdir/file3 | _filter_scratch
+_scratch_remount
+
+$XFS_IO_PROG -c "stat" $testdir/file3 | grep 'fsxattr.xflags' | _filter_scratch
+$XFS_IO_PROG -c "cowextsize" $testdir/file3 | _filter_scratch
+
+echo "Unset cowextsize and check flag"
+$XFS_IO_PROG -c "cowextsize 0" $testdir/file3 | _filter_scratch
+_scratch_remount
+
+$XFS_IO_PROG -c "stat" $testdir/file3 | grep 'fsxattr.xflags' | _filter_scratch
+$XFS_IO_PROG -c "cowextsize" $testdir/file3 | _filter_scratch
+
+status=0
+exit
--- /dev/null
+QA output created by 207
+Format and mount
+Create the original files
+Set extsz and cowextsz on zero byte file
+Set extsz and cowextsz on 1Mbyte file
+xfs_io: XFS_IOC_FSSETXATTR SCRATCH_MNT/test-207/file2: Invalid argument
+Check extsz and cowextsz settings on zero byte file
+[1048576] SCRATCH_MNT/test-207/file1
+[1048576] SCRATCH_MNT/test-207/file1
+Check extsz and cowextsz settings on 1Mbyte file
+[0] SCRATCH_MNT/test-207/file2
+[1048576] SCRATCH_MNT/test-207/file2
+Set cowextsize and check flag
+fsxattr.xflags = 0x20000 [---------------C]
+[1048576] SCRATCH_MNT/test-207/file3
+Unset cowextsize and check flag
+fsxattr.xflags = 0x0 [----------------]
+[0] SCRATCH_MNT/test-207/file3
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 208
+#
+# Ensure that the effective cow extent allocation size hint is the maximum of
+# the cowextsize and extsize inode fields.
+# - Create two reflinked files. Set extsz hint on second file to $blocksize
+# and cowextsize hint to 1MB.
+# - Buffered write to random offsets to scatter CoW reservations.
+# - Rewrite the whole file to use up reservations.
+# - Check the number of extents.
+# - Repeat, but with extsz = 1MB and cowextsz = $blocksize.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=128
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 3 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+
+$XFS_IO_PROG -f -c "extsize $real_blksz" $testdir/file2
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+
+$XFS_IO_PROG -f -c "extsize $bufsize" $testdir/file3
+$XFS_IO_PROG -f -c "cowextsize $real_blksz" $testdir/file3
+_cp_reflink $testdir/file1 $testdir/file3 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file3 | _filter_scratch
+
+echo "CoW and unmount"
+echo "extsize" >> $seqres.full
+$XFS_IO_PROG -f -c "extsize" $testdir/file2 >> $seqres.full
+echo "cowextsize" >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $real_blksz 0 $((filesize + 1))" -c "fdatasync" $testdir/file2 >> $seqres.full
+
+echo "extsize" >> $seqres.full
+$XFS_IO_PROG -f -c "extsize" $testdir/file3 >> $seqres.full
+echo "cowextsize" >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file3 >> $seqres.full
+
+$XFS_IO_PROG -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $filesize" -c "fdatasync" $testdir/file3 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x63 -b $real_blksz 0 $((filesize + 1))" -c "fdatasync" $testdir/file3 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file3 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+new_extents=$(_count_extents $testdir/file3)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file3 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 208
+Format and mount
+Create the original files
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-208/file1
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-208/file2
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-208/file3
+CoW and unmount
+Compare files
+2909feb63a37b0e95fe5cfb7f274f7b1 SCRATCH_MNT/test-208/file1
+d41f6527bc8320364e12ea7076140b8b SCRATCH_MNT/test-208/file2
+d41f6527bc8320364e12ea7076140b8b SCRATCH_MNT/test-208/file3
+Check extent counts
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 209
+#
+# Make sure setting cowextsz on a directory propagates it to subfiles.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+echo "Set extsz and cowextsz on directory"
+$XFS_IO_PROG -c "cowextsize 1048576" $testdir >> $seqres.full
+
+echo "Create a fake tree structure"
+seq 1 2 | while read nr; do
+ mkdir "$testdir/dir-$nr"
+ seq 1 4 | while read nnr; do
+ touch "$testdir/dir-$nr/file-$nnr"
+ done
+done
+_scratch_remount
+
+echo "Check cowextsize settings"
+seq 1 2 | while read nr; do
+ seq 1 4 | while read nnr; do
+ file="$testdir/dir-$nr/file-$nnr"
+ $XFS_IO_PROG -c "cowextsize" $file
+ done
+done
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 209
+Format and mount
+Set extsz and cowextsz on directory
+Create a fake tree structure
+Check cowextsize settings
+[1048576] /opt/test-209/dir-1/file-1
+[1048576] /opt/test-209/dir-1/file-2
+[1048576] /opt/test-209/dir-1/file-3
+[1048576] /opt/test-209/dir-1/file-4
+[1048576] /opt/test-209/dir-2/file-1
+[1048576] /opt/test-209/dir-2/file-2
+[1048576] /opt/test-209/dir-2/file-3
+[1048576] /opt/test-209/dir-2/file-4
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 210
+#
+# During reflink, XFS should carry the cowextsz setting to the destination file
+# if the destination file size is less than the size of the source file, the
+# length is the size of the source file, both offsets are zero, and the
+# destination does not already have a cowextsz setting. It should not do so
+# otherwise.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+echo "Create initial file"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 131072" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -c "cowextsize 1048576" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 1" $testdir/file4 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file7 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file9 >> $seqres.full
+$XFS_IO_PROG -f -c "pwrite -S 0x61 0 262144" $testdir/file10 >> $seqres.full
+
+echo "Reflink to an empty file"
+_reflink_range $testdir/file1 0 $testdir/file2 0 0 >> $seqres.full
+
+echo "Reflink to an empty file that already has cowextsz"
+$XFS_IO_PROG -f -c "cowextsize 524288" $testdir/file3 >> $seqres.full
+_reflink_range $testdir/file1 0 $testdir/file3 0 0 >> $seqres.full
+
+echo "Reflink to a small file"
+_reflink_range $testdir/file1 0 $testdir/file4 0 0 >> $seqres.full
+
+echo "Reflink to a nonzero offset"
+_reflink_range $testdir/file1 0 $testdir/file5 65536 0 >> $seqres.full
+
+echo "Reflink from a nonzero offset"
+_reflink_range $testdir/file1 65536 $testdir/file6 0 0 >> $seqres.full
+
+echo "Reflink to a larger file"
+_reflink_range $testdir/file1 0 $testdir/file7 0 0 >> $seqres.full
+
+echo "Reflink less than the whole source file"
+_reflink_range $testdir/file1 0 $testdir/file8 0 65536 >> $seqres.full
+
+echo "cp reflink to a larger file"
+_cp_reflink $testdir/file1 $testdir/file9 >> $seqres.full
+
+echo "cp reflink to a larger file with cowextsize"
+$XFS_IO_PROG -f -c "cowextsize 524288" $testdir/file10 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file10 >> $seqres.full
+
+echo "Check cowextsz"
+for i in `seq 1 10`; do
+ $XFS_IO_PROG -c "cowextsize" $testdir/file$i | _filter_scratch
+done
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 210
+Format and mount
+Create initial file
+Reflink to an empty file
+Reflink to an empty file that already has cowextsz
+Reflink to a small file
+Reflink to a nonzero offset
+Reflink from a nonzero offset
+Reflink to a larger file
+Reflink less than the whole source file
+cp reflink to a larger file
+cp reflink to a larger file with cowextsize
+Check cowextsz
+[1048576] SCRATCH_MNT/test-210/file1
+[1048576] SCRATCH_MNT/test-210/file2
+[524288] SCRATCH_MNT/test-210/file3
+[1048576] SCRATCH_MNT/test-210/file4
+[0] SCRATCH_MNT/test-210/file5
+[0] SCRATCH_MNT/test-210/file6
+[0] SCRATCH_MNT/test-210/file7
+[0] SCRATCH_MNT/test-210/file8
+[1048576] SCRATCH_MNT/test-210/file9
+[524288] SCRATCH_MNT/test-210/file10
--- /dev/null
+#! /bin/bash
+# FS QA Test No. 211
+#
+# Test fragmentation in a big file after a lot of random CoW:
+# - Create two reflinked files. Set extsz hint on second file.
+# - Directio write to random offsets to scatter CoW reservations.
+# - Rewrite the whole file to use up reservations.
+# - Check the number of extents.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016, Oracle and/or its affiliates. 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 "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_reflink
+_require_cp_reflink
+_require_fiemap
+_require_xfs_io_command "cowextsize"
+_require_odirect
+
+rm -f $seqres.full
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+blksz=65536
+nr=50000
+filesize=$((blksz * nr))
+bufnr=16
+bufsize=$((blksz * bufnr))
+
+_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 2 * 5 / 4))
+real_blksz=$(stat -f -c '%S' $testdir)
+internal_blks=$((filesize / real_blksz))
+
+echo "Create the original files"
+$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
+$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $((filesize + 1))" $testdir/file2 >> $seqres.full
+$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b 8388608 0 $filesize" $testdir/file2 >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+
+echo "Check extent counts"
+old_extents=$(_count_extents $testdir/file1)
+new_extents=$(_count_extents $testdir/file2)
+
+echo "old extents: $old_extents" >> $seqres.full
+echo "new extents: $new_extents" >> $seqres.full
+echo "maximum extents: $internal_blks" >> $seqres.full
+test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
+ || echo "file2 badly fragmented"
+
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 211
+Format and mount
+Create the original files
+Compare files
+07415406aea963ab8e005f1d3744fded SCRATCH_MNT/test-211/file1
+07415406aea963ab8e005f1d3744fded SCRATCH_MNT/test-211/file2
+CoW and unmount
+Compare files
+07415406aea963ab8e005f1d3744fded SCRATCH_MNT/test-211/file1
+7d8ab127adfc1f745a7d1cd5e44d10d8 SCRATCH_MNT/test-211/file2
+Check extent counts
177 dmapi
178 mkfs other auto
179 auto quick clone
+180 auto quick clone
181 log auto quick
+182 auto quick clone
183 rw other auto quick
+184 auto quick clone
185 dmapi
186 attr auto quick
187 attr auto quick
189 mount auto quick
190 rw auto quick
191 nfs4acl auto
+192 auto quick clone
+193 auto quick clone
194 rw auto
195 ioctl dump auto quick
196 quota auto quick
197 dir auto quick
+198 auto quick clone
199 mount auto quick
+200 auto quick clone
201 metadata auto quick
202 repair auto quick
203 ioctl auto
+204 auto quick clone
205 metadata rw auto
206 growfs auto quick
+207 auto quick clone
+208 auto quick clone
+209 auto quick clone
+210 auto quick clone
+211 clone_stress
216 log metadata auto quick
217 log metadata auto
220 auto quota quick
projects / xfstests-dev.git / commitdiff