Ensure that we correctly handle a CoW operation immediately followed
by a truncate, falloc, fpunch, fzero, fcollapse, and finsert operation
in the middle of the CoW'd region before any flush can occur.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
tests/generic/253 | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/253.out | 12 ++++++
tests/generic/254 | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/254.out | 12 ++++++
tests/generic/259 | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/259.out | 12 ++++++
tests/generic/261 | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/261.out | 12 ++++++
tests/generic/262 | 93 +++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/262.out | 12 ++++++
tests/generic/264 | 90 +++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/264.out | 12 ++++++
tests/generic/group | 6 +++
13 files changed, 621 insertions(+)
create mode 100755 tests/generic/253
create mode 100644 tests/generic/253.out
create mode 100755 tests/generic/254
create mode 100644 tests/generic/254.out
create mode 100755 tests/generic/259
create mode 100644 tests/generic/259.out
create mode 100755 tests/generic/261
create mode 100644 tests/generic/261.out
create mode 100755 tests/generic/262
create mode 100644 tests/generic/262.out
create mode 100755 tests/generic/264
create mode 100644 tests/generic/264.out
diff --git a/tests/generic/253 b/tests/generic/253
new file mode 100755
index 0000000..bfb91a3
--- /dev/null
+++ b/tests/generic/253
@@ -0,0 +1,90 @@
+#! /bin/bash
+# FS QA Test No. 253
+#
+# Truncate a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "truncate"
+
+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=4
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 2)) $blksz $((blksz * 2))" -c "truncate $((blksz * 2))" $testdir/file2 >> $seqres.full
+_scratch_remount
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 2)) $blksz $((blksz * 2))" -c "truncate $((blksz * 2))" $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/253.out b/tests/generic/253.out
new file mode 100644
index 0000000..3364ba0
--- /dev/null
+++ b/tests/generic/253.out
@@ -0,0 +1,12 @@
+QA output created by 253
+Format and mount
+Create the original files
+Compare files
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-253/file1
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-253/file2
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-253/file2.chk
+CoW and unmount
+Compare files
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-253/file1
+b5fc98f04b19fa7b2085ec1358c78760 SCRATCH_MNT/test-253/file2
+b5fc98f04b19fa7b2085ec1358c78760 SCRATCH_MNT/test-253/file2.chk
diff --git a/tests/generic/254 b/tests/generic/254
new file mode 100755
index 0000000..f16cdd3
--- /dev/null
+++ b/tests/generic/254
@@ -0,0 +1,90 @@
+#! /bin/bash
+# FS QA Test No. 254
+#
+# Punch a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "fpunch"
+
+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 $testdir
+
+blksz=65536
+nr=5
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "fpunch $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
+_scratch_remount
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "pwrite -S 0x00 $((blksz * 2)) $blksz" $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/254.out b/tests/generic/254.out
new file mode 100644
index 0000000..97a8b5a
--- /dev/null
+++ b/tests/generic/254.out
@@ -0,0 +1,12 @@
+QA output created by 254
+Format and mount
+Create the original files
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-254/file1
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-254/file2
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-254/file2.chk
+CoW and unmount
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-254/file1
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-254/file2
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-254/file2.chk
diff --git a/tests/generic/259 b/tests/generic/259
new file mode 100755
index 0000000..6718c50
--- /dev/null
+++ b/tests/generic/259
@@ -0,0 +1,90 @@
+#! /bin/bash
+# FS QA Test No. 259
+#
+# fzero a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "fzero"
+
+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=5
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "fzero $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
+_scratch_remount
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "pwrite -S 0x00 $((blksz * 2)) $blksz" $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/259.out b/tests/generic/259.out
new file mode 100644
index 0000000..3517fb1
--- /dev/null
+++ b/tests/generic/259.out
@@ -0,0 +1,12 @@
+QA output created by 259
+Format and mount
+Create the original files
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-259/file1
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-259/file2
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-259/file2.chk
+CoW and unmount
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-259/file1
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-259/file2
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-259/file2.chk
diff --git a/tests/generic/261 b/tests/generic/261
new file mode 100755
index 0000000..28d0e0b
--- /dev/null
+++ b/tests/generic/261
@@ -0,0 +1,90 @@
+#! /bin/bash
+# FS QA Test No. 261
+#
+# fcollapse a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "fcollapse"
+
+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 $testdir
+
+blksz=65536
+nr=5
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "fcollapse $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
+_scratch_remount
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 2)) $blksz $((blksz * 2))" -c "truncate $((blksz * (nr - 1)))" $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/261.out b/tests/generic/261.out
new file mode 100644
index 0000000..43691ad
--- /dev/null
+++ b/tests/generic/261.out
@@ -0,0 +1,12 @@
+QA output created by 261
+Format and mount
+Create the original files
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-261/file1
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-261/file2
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-261/file2.chk
+CoW and unmount
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-261/file1
+91b31bb8bffa8c3d3374445039287226 SCRATCH_MNT/test-261/file2
+91b31bb8bffa8c3d3374445039287226 SCRATCH_MNT/test-261/file2.chk
diff --git a/tests/generic/262 b/tests/generic/262
new file mode 100755
index 0000000..aaf38cf
--- /dev/null
+++ b/tests/generic/262
@@ -0,0 +1,93 @@
+#! /bin/bash
+# FS QA Test No. 262
+#
+# finsert a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "finsert"
+
+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=4
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 2)) $blksz $((blksz * 2))" -c "finsert $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
+_scratch_remount
+_pwrite_byte 0x62 $blksz $blksz $testdir/file2.chk >> $seqres.full
+_pwrite_byte 0x00 $((blksz * 2)) $blksz $testdir/file2.chk >> $seqres.full
+_pwrite_byte 0x62 $((blksz * 3)) $blksz $testdir/file2.chk >> $seqres.full
+_pwrite_byte 0x61 $((blksz * 4)) $blksz $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/262.out b/tests/generic/262.out
new file mode 100644
index 0000000..32c7503
--- /dev/null
+++ b/tests/generic/262.out
@@ -0,0 +1,12 @@
+QA output created by 262
+Format and mount
+Create the original files
+Compare files
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-262/file1
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-262/file2
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-262/file2.chk
+CoW and unmount
+Compare files
+c946b71bb69c07daf25470742c967e7c SCRATCH_MNT/test-262/file1
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-262/file2
+b9f7a56c2ab90569cb19d8597583c6a6 SCRATCH_MNT/test-262/file2.chk
diff --git a/tests/generic/264 b/tests/generic/264
new file mode 100755
index 0000000..d5bcca6
--- /dev/null
+++ b/tests/generic/264
@@ -0,0 +1,90 @@
+#! /bin/bash
+# FS QA Test No. 264
+#
+# fallocate a file at midway through a CoW region.
+#
+# This test is dependent on the system page size, so we cannot use md5 in
+# the golden output; we can only compare to a check file.
+#
+#-----------------------------------------------------------------------
+# 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_xfs_io_command "falloc"
+
+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 $testdir
+
+blksz=65536
+nr=5
+filesize=$((blksz * nr))
+
+echo "Create the original files"
+_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
+_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
+_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+echo "CoW and unmount"
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "falloc $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
+_scratch_remount
+$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" $testdir/file2.chk >> $seqres.full
+_scratch_remount
+
+echo "Compare files"
+md5sum $testdir/file1 | _filter_scratch
+md5sum $testdir/file2 | _filter_scratch
+md5sum $testdir/file2.chk | _filter_scratch
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/264.out b/tests/generic/264.out
new file mode 100644
index 0000000..cd6904b
--- /dev/null
+++ b/tests/generic/264.out
@@ -0,0 +1,12 @@
+QA output created by 264
+Format and mount
+Create the original files
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-264/file1
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-264/file2
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-264/file2.chk
+CoW and unmount
+Compare files
+17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-264/file1
+3383b9c17e643acd1a9a249cf041e183 SCRATCH_MNT/test-264/file2
+3383b9c17e643acd1a9a249cf041e183 SCRATCH_MNT/test-264/file2.chk
diff --git a/tests/generic/group b/tests/generic/group
index 0e4e7d3..b768882 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -255,12 +255,18 @@
250 auto quick prealloc rw
251 ioctl trim
252 auto quick prealloc rw
+253 auto quick clone
+254 auto quick clone
255 auto quick prealloc
256 auto quick
257 dir auto quick
258 auto quick
+259 auto quick clone
260 auto quick trim
+261 auto quick clone
+262 auto quick clone
263 rw auto quick
+264 auto quick clone
269 auto rw prealloc ioctl enospc stress
270 auto quota rw prealloc ioctl enospc stress
273 auto rw
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