From cc8e860cc903b339672103201cc3ed68f65616b1 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Tue, 17 Nov 2015 08:39:24 +1100
Subject: [PATCH] reflink: basic tests of the reflink and dedupe ioctls

Test the operation of the btrfs (and now xfs) reflink and dedupe
ioctls at various file offsets and with matching and nonmatching
files.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---
 tests/generic/116     |  92 +++++++++++++++++++++++
 tests/generic/116.out |   8 ++
 tests/generic/118     |  93 +++++++++++++++++++++++
 tests/generic/118.out |  11 +++
 tests/generic/119     | 170 ++++++++++++++++++++++++++++++++++++++++++
 tests/generic/119.out |  30 ++++++++
 tests/generic/121     |  92 +++++++++++++++++++++++
 tests/generic/121.out |   8 ++
 tests/generic/122     |  92 +++++++++++++++++++++++
 tests/generic/122.out |  12 +++
 tests/generic/134     | 128 +++++++++++++++++++++++++++++++
 tests/generic/134.out |  16 ++++
 tests/generic/136     | 128 +++++++++++++++++++++++++++++++
 tests/generic/136.out |  17 +++++
 tests/generic/137     | 131 ++++++++++++++++++++++++++++++++
 tests/generic/137.out |   8 ++
 tests/generic/group   |   8 ++
 17 files changed, 1044 insertions(+)
 create mode 100755 tests/generic/116
 create mode 100644 tests/generic/116.out
 create mode 100755 tests/generic/118
 create mode 100644 tests/generic/118.out
 create mode 100755 tests/generic/119
 create mode 100644 tests/generic/119.out
 create mode 100755 tests/generic/121
 create mode 100644 tests/generic/121.out
 create mode 100755 tests/generic/122
 create mode 100644 tests/generic/122.out
 create mode 100755 tests/generic/134
 create mode 100644 tests/generic/134.out
 create mode 100755 tests/generic/136
 create mode 100644 tests/generic/136.out
 create mode 100755 tests/generic/137
 create mode 100644 tests/generic/137.out

diff --git a/tests/generic/116 b/tests/generic/116
new file mode 100755
index 00000000..2b4b5055
--- /dev/null
+++ b/tests/generic/116
@@ -0,0 +1,92 @@
+#! /bin/bash
+# FS QA Test No. 116
+#
+# Ensure that we can reflink parts of two identical files:
+#   - Reflink identical parts of two identical files
+#   - Check that we still have identical contents
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_reflink
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \
+       || echo "Files do not match"
+
+echo "Reflink the middle blocks together"
+free_before="$(stat -f -c '%a' "$TESTDIR")"
+_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' "$TESTDIR")"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \
+       || echo "Start sections do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) \
+       || echo "Middle sections do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \
+		$((BLKSZ * 6)) $((BLKSZ * 2)) \
+       || echo "End sections do not match"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/116.out b/tests/generic/116.out
new file mode 100644
index 00000000..5adfc62b
--- /dev/null
+++ b/tests/generic/116.out
@@ -0,0 +1,8 @@
+QA output created by 116
+Create the original files
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-116/file1
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-116/file2
+Reflink the middle blocks together
+Compare sections
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-116/file1
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-116/file2
diff --git a/tests/generic/118 b/tests/generic/118
new file mode 100755
index 00000000..651b72cd
--- /dev/null
+++ b/tests/generic/118
@@ -0,0 +1,93 @@
+#! /bin/bash
+# FS QA Test No. 118
+#
+# Ensuring that we can reflink non-matching parts of files:
+#   - Reflink identical ranges of two different files
+#   - Check that the non-linked ranges still do not match
+#   - Check that we end up with identical contents in the linked ranges
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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 "$tmp".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_reflink
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \
+       || echo "Files do not match (intentional)"
+
+echo "Reflink the middle blocks together"
+free_before="$(stat -f -c '%a' "$TESTDIR")"
+_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' "$TESTDIR")"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \
+       || echo "Start sections do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) \
+       || echo "Middle sections do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \
+		$((BLKSZ * 6)) $((BLKSZ * 2)) \
+       || echo "End sections do not match (intentional)"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/118.out b/tests/generic/118.out
new file mode 100644
index 00000000..8fdaf59d
--- /dev/null
+++ b/tests/generic/118.out
@@ -0,0 +1,11 @@
+QA output created by 118
+Create the original files
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-118/file1
+5e3501f97fd2669babfcbd3e1972e833  TEST_DIR/test-118/file2
+Files do not match (intentional)
+Reflink the middle blocks together
+Compare sections
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-118/file1
+f7f9e44d37909868014e9151f5293ab0  TEST_DIR/test-118/file2
+Start sections do not match (intentional)
+End sections do not match (intentional)
diff --git a/tests/generic/119 b/tests/generic/119
new file mode 100755
index 00000000..9d57379c
--- /dev/null
+++ b/tests/generic/119
@@ -0,0 +1,170 @@
+#! /bin/bash
+# FS QA Test No. 119
+#
+# Reflinking two sets of files together:
+#   - Reflink identical parts of two identical files
+#   - Reflink identical parts of two other identical files
+#   - Reflink identical parts of all four files
+#   - Check that we end up with identical contents
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_reflink
+
+rm -f "$seqres.full"
+
+TESTDIR=$TEST_DIR/test-$seq
+rm -rf $TESTDIR
+mkdir $TESTDIR
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 0 $((BLKSZ * 8)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x62 0 $((BLKSZ * 8)) "$TESTDIR/file2" >> "$seqres.full"
+_pwrite_byte 0x63 0 $((BLKSZ * 8)) "$TESTDIR/file3" >> "$seqres.full"
+_pwrite_byte 0x64 0 $((BLKSZ * 8)) "$TESTDIR/file4" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \
+       || echo "Files 1-2 do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 8)) \
+       || echo "Files 1-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 8)) \
+       || echo "Files 1-4 do not match (intentional)"
+
+echo "Reflink the first four blocks together, 1-2 3-4"
+free_before="$(stat -f -c '%a' "$TESTDIR")"
+_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) >> "$seqres.full"
+_reflink_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' "$TESTDIR")"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 1-2 do not match"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 1-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 1-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 2-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 2-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \
+       || echo "Sections of file 3-4 do not match"
+
+echo "Reflink the first two blocks together, 1-3 1-4"
+free_before="$(stat -f -c '%a' $TESTDIR)"
+_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) >> "$seqres.full"
+_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' $TESTDIR)"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 1-2 do not match"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 1-3 do not match"
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 1-4 do not match"
+
+_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 2-3 do not match"
+
+_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 2-4 do not match"
+
+_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \
+       || echo "Sections of files 3-4 do not match"
+
+echo "Compare previously reflinked sections"
+_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file2" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 1-2 do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file3" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 1-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file4" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 1-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file3" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 2-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file4" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 2-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file3" $((BLKSZ * 2)) "$TESTDIR/file4" \
+		$((BLKSZ * 2)) $((BLKSZ * 2)) \
+       || echo "Sections of file 3-4 do not match"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/119.out b/tests/generic/119.out
new file mode 100644
index 00000000..85893d59
--- /dev/null
+++ b/tests/generic/119.out
@@ -0,0 +1,30 @@
+QA output created by 119
+Create the original files
+30c2557e8302a5beb290c71520d87f42  TEST_DIR/test-119/file1
+efb787f7990e43c7dc30565d8cc344d4  TEST_DIR/test-119/file2
+c83f38d4622a78b74e3480634194b08f  TEST_DIR/test-119/file3
+1c11fd3151d2229f5cf43903386aa432  TEST_DIR/test-119/file4
+Files 1-2 do not match (intentional)
+Files 1-3 do not match (intentional)
+Files 1-4 do not match (intentional)
+Reflink the first four blocks together, 1-2 3-4
+Compare sections
+30c2557e8302a5beb290c71520d87f42  TEST_DIR/test-119/file1
+63bdb182cdf03a8a19e83234d869d00a  TEST_DIR/test-119/file2
+c83f38d4622a78b74e3480634194b08f  TEST_DIR/test-119/file3
+dc2ae3db14e97fad93faf939170b085c  TEST_DIR/test-119/file4
+Sections of file 1-3 do not match (intentional)
+Sections of file 1-4 do not match (intentional)
+Sections of file 2-3 do not match (intentional)
+Sections of file 2-4 do not match (intentional)
+Reflink the first two blocks together, 1-3 1-4
+Compare sections
+30c2557e8302a5beb290c71520d87f42  TEST_DIR/test-119/file1
+63bdb182cdf03a8a19e83234d869d00a  TEST_DIR/test-119/file2
+89a444ff9d6af60ba487e9a0ca2161e2  TEST_DIR/test-119/file3
+0c263058794a54c5e197ece52386f5be  TEST_DIR/test-119/file4
+Compare previously reflinked sections
+Sections of file 1-3 do not match (intentional)
+Sections of file 1-4 do not match (intentional)
+Sections of file 2-3 do not match (intentional)
+Sections of file 2-4 do not match (intentional)
diff --git a/tests/generic/121 b/tests/generic/121
new file mode 100755
index 00000000..9a5b3838
--- /dev/null
+++ b/tests/generic/121
@@ -0,0 +1,92 @@
+#! /bin/bash
+# FS QA Test No. 121
+#
+# Ensure that we can dedupe parts of two files:
+#   - Dedupe identical parts of two identical files
+#   - Check that still have identical contents
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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 "$tmp".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_dedupe
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \
+       || echo "Files 1-2 do not match (intentional)"
+
+echo "Dedupe the middle blocks together"
+free_before="$(stat -f -c '%a' "$TESTDIR")"
+_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' "$TESTDIR")"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \
+       || echo "Start sections do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) \
+       || echo "Middle sections do not match"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \
+		$((BLKSZ * 6)) $((BLKSZ * 2)) \
+       || echo "End sections do not match"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/121.out b/tests/generic/121.out
new file mode 100644
index 00000000..d865c7e0
--- /dev/null
+++ b/tests/generic/121.out
@@ -0,0 +1,8 @@
+QA output created by 121
+Create the original files
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-121/file1
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-121/file2
+Dedupe the middle blocks together
+Compare sections
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-121/file1
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-121/file2
diff --git a/tests/generic/122 b/tests/generic/122
new file mode 100755
index 00000000..0edb48d7
--- /dev/null
+++ b/tests/generic/122
@@ -0,0 +1,92 @@
+#! /bin/bash
+# FS QA Test No. 122
+#
+# Ensuring that we cannot dedupe non-matching parts of files:
+#   - Fail to dedupe non-identical parts of two different files
+#   - Check that nothing changes in either file
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_dedupe
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 "$((BLKSZ * 8))" \
+       || echo "Files 1-2 do not match (intentional)"
+
+echo "(Fail to) dedupe the middle blocks together"
+free_before="$(stat -f -c '%a' "$TESTDIR")"
+_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full"
+_test_remount
+free_after="$(stat -f -c '%a' "$TESTDIR")"
+echo "freesp changed by $free_before -> $free_after" >> "$seqres.full"
+
+echo "Compare sections"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+
+_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \
+       || echo "Start sections do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \
+		$((BLKSZ * 4)) $((BLKSZ * 2)) \
+       || echo "Middle sections do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \
+		$((BLKSZ * 6)) $((BLKSZ * 2)) \
+       || echo "End sections do not match (intentional)"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/122.out b/tests/generic/122.out
new file mode 100644
index 00000000..c7cfec21
--- /dev/null
+++ b/tests/generic/122.out
@@ -0,0 +1,12 @@
+QA output created by 122
+Create the original files
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-122/file1
+5e3501f97fd2669babfcbd3e1972e833  TEST_DIR/test-122/file2
+Files 1-2 do not match (intentional)
+(Fail to) dedupe the middle blocks together
+Compare sections
+35ac8d7917305c385c30f3d82c30a8f6  TEST_DIR/test-122/file1
+5e3501f97fd2669babfcbd3e1972e833  TEST_DIR/test-122/file2
+Start sections do not match (intentional)
+Middle sections do not match (intentional)
+End sections do not match (intentional)
diff --git a/tests/generic/134 b/tests/generic/134
new file mode 100755
index 00000000..4dc710ca
--- /dev/null
+++ b/tests/generic/134
@@ -0,0 +1,128 @@
+#! /bin/bash
+# FS QA Test No. 134
+#
+# Ensure that we can reflink the last block of a file whose size isn't
+# block-aligned.
+#   - Create two 'a' files file whose size isn't block-aligned.
+#   - Create two 'b' files file whose size isn't block-aligned.
+#   - Reflink the last block of file1 to the last block in file2 and file3.
+#   - Check that files 1-2 match, 3-4 don't match, and that nothing matches 3.
+#   - Check that the ends of 1-3 match, and 1-3 do not match the end of file4.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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 "$tmp".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_reflink
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full"
+_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full"
+_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+C1="$(_md5_checksum $TESTDIR/file1)"
+C2="$(_md5_checksum $TESTDIR/file2)"
+C3="$(_md5_checksum $TESTDIR/file3)"
+C4="$(_md5_checksum $TESTDIR/file4)"
+
+test "${C1}" = "${C2}" || echo "file1 and file2 should match"
+test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
+test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
+test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
+test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
+test "${C3}" = "${C4}" || echo "file3 and file4 should match"
+
+echo "Reflink the last blocks together, 1-2 1-3"
+_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full"
+_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+C1="$(_md5_checksum $TESTDIR/file1)"
+C2="$(_md5_checksum $TESTDIR/file2)"
+C3="$(_md5_checksum $TESTDIR/file3)"
+C4="$(_md5_checksum $TESTDIR/file4)"
+
+echo "Compare files"
+test "${C1}" = "${C2}" || echo "file1 and file2 should match"
+test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
+test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
+test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
+test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
+test "${C3}" != "${C4}" || echo "file3 and file4 should match"
+
+echo "Compare sections"
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \
+       || echo "End sections of files 1-2 do not match"
+
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
+       || echo "End sections of files 1-3 do not match"
+
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 1-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
+       || echo "End sections of files 2-3 do not match"
+
+_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 2-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 3-4 do not match (intentional)"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/134.out b/tests/generic/134.out
new file mode 100644
index 00000000..b5e0f437
--- /dev/null
+++ b/tests/generic/134.out
@@ -0,0 +1,16 @@
+QA output created by 134
+Create the original files
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-134/file1
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-134/file2
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-134/file3
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-134/file4
+Reflink the last blocks together, 1-2 1-3
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-134/file1
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-134/file2
+e236f2fe789f0aa34b50e981a2f0243a  TEST_DIR/test-134/file3
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-134/file4
+Compare files
+Compare sections
+End sections of files 1-4 do not match (intentional)
+End sections of files 2-4 do not match (intentional)
+End sections of files 3-4 do not match (intentional)
diff --git a/tests/generic/136 b/tests/generic/136
new file mode 100755
index 00000000..89ee751d
--- /dev/null
+++ b/tests/generic/136
@@ -0,0 +1,128 @@
+#! /bin/bash
+# FS QA Test No. 136
+#
+# Ensure that we can dedupe the last block of a file whose size isn't
+# block-aligned.
+#   - Create two 'a' files file whose size isn't block-aligned.
+#   - Create two 'b' files file whose size isn't block-aligned.
+#   - Dedupe the last block of file1 to the last block in file2 and file3.
+#   - Check that files 1-2 match, and that 3-4 match.
+#   - Check that the ends of 1-2 and 3-4 match, and that 1-3 don't match.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_dedupe
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original files"
+BLKSZ=65536
+_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full"
+_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full"
+_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+C1="$(_md5_checksum $TESTDIR/file1)"
+C2="$(_md5_checksum $TESTDIR/file2)"
+C3="$(_md5_checksum $TESTDIR/file3)"
+C4="$(_md5_checksum $TESTDIR/file4)"
+
+test "${C1}" = "${C2}" || echo "file1 and file2 should match"
+test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
+test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
+test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
+test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
+test "${C3}" = "${C4}" || echo "file3 and file4 should match"
+
+echo "Dedupe the last blocks together"
+_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full"
+_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full"
+_test_remount
+
+md5sum "$TESTDIR/file1" | _filter_test_dir
+md5sum "$TESTDIR/file2" | _filter_test_dir
+md5sum "$TESTDIR/file3" | _filter_test_dir
+md5sum "$TESTDIR/file4" | _filter_test_dir
+
+C1="$(_md5_checksum $TESTDIR/file1)"
+C2="$(_md5_checksum $TESTDIR/file2)"
+C3="$(_md5_checksum $TESTDIR/file3)"
+C4="$(_md5_checksum $TESTDIR/file4)"
+
+echo "Compare files"
+test "${C1}" = "${C2}" || echo "file1 and file2 should match"
+test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
+test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
+test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
+test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
+test "${C3}" = "${C4}" || echo "file3 and file4 should match"
+
+echo "Compare sections"
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \
+       || echo "End sections of files 1-2 do not match"
+
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
+       || echo "End sections of files 1-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 1-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
+       || echo "End sections of files 2-3 do not match (intentional)"
+
+_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 2-4 do not match (intentional)"
+
+_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
+       || echo "End sections of files 3-4 do not match"
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/136.out b/tests/generic/136.out
new file mode 100644
index 00000000..99a54652
--- /dev/null
+++ b/tests/generic/136.out
@@ -0,0 +1,17 @@
+QA output created by 136
+Create the original files
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-136/file1
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-136/file2
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-136/file3
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-136/file4
+Dedupe the last blocks together
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-136/file1
+c4fd505be25a0c91bcca9f502b9a8156  TEST_DIR/test-136/file2
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-136/file3
+07ac67bf7f271195442509e79cde4cee  TEST_DIR/test-136/file4
+Compare files
+Compare sections
+End sections of files 1-3 do not match (intentional)
+End sections of files 1-4 do not match (intentional)
+End sections of files 2-3 do not match (intentional)
+End sections of files 2-4 do not match (intentional)
diff --git a/tests/generic/137 b/tests/generic/137
new file mode 100755
index 00000000..a640f4f2
--- /dev/null
+++ b/tests/generic/137
@@ -0,0 +1,131 @@
+#! /bin/bash
+# FS QA Test No. 137
+#
+# Ensure that we can reflink and dedupe blocks within the same file...
+#   - Create a file with three distinct blocks ABB
+#   - Reflink block zero to the multiple-of-three blocks
+#   - Reflink block one to the multiple-of-five blocks
+#   - Dedupe block two to the multiple-of-seven blocks
+#   - Check that we successfully avoid deduping with holes, unwritten
+#     extents, and non-matches; but actually dedupe real matches.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015, 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 "$tmp".* "$TESTDIR"
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_supported_os Linux
+_require_test_reflink
+_require_test_dedupe
+_require_xfs_io_command "falloc"
+
+rm -f "$seqres.full"
+
+TESTDIR="$TEST_DIR/test-$seq"
+rm -rf "$TESTDIR"
+mkdir "$TESTDIR"
+
+echo "Create the original file blocks"
+BLKSZ=65536
+_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full"
+_pwrite_byte 0x62 $BLKSZ $((BLKSZ * 2)) "$TESTDIR/file1" >> "$seqres.full"
+
+NR_BLKS=1024
+
+echo "fallocate half the file"
+"$XFS_IO_PROG" -f -c "falloc $((NR_BLKS * BLKSZ / 2)) $((NR_BLKS * BLKSZ / 2))" "$TESTDIR/file1" >> "$seqres.full"
+
+echo "Reflink block zero to the threes"
+seq 1 $((NR_BLKS / 3)) | while read nr; do
+	_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $((nr * 3 * BLKSZ)) \
+			$BLKSZ >> "$seqres.full"
+done
+
+echo "Reflink block one to the fives"
+seq 1 $((NR_BLKS / 5)) | while read nr; do
+	_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file1" \
+			$((nr * 5 * BLKSZ)) $BLKSZ >> "$seqres.full"
+done
+
+echo "Dedupe block two to the sevens"
+seq 1 $((NR_BLKS / 7)) | while read nr; do
+	_dedupe_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file1" \
+			$((nr * 7 * BLKSZ)) $BLKSZ >> "$seqres.full"
+done
+
+_test_remount
+
+echo "Check block mappings"
+md5sum "$TESTDIR/file1" | _filter_test_dir
+
+crcZ=$(_md5_range_checksum /dev/zero 0 $BLKSZ)
+crc0=$(_md5_range_checksum "$TESTDIR/file1" 0 $BLKSZ)
+crc1=$(_md5_range_checksum "$TESTDIR/file1" $BLKSZ $BLKSZ)
+crc2=$(_md5_range_checksum "$TESTDIR/file1" $((BLKSZ * 2)) $BLKSZ)
+
+check_block() {
+	lblk="$1"
+	rem7=$((lblk % 7))
+	rem5=$((lblk % 5))
+	rem3=$((lblk % 3))
+
+	crc=$(_md5_range_checksum "$TESTDIR/file1" $((lblk * BLKSZ)) $BLKSZ)
+
+	if [ $rem7 -eq 0 ]; then
+		if [ $rem5 -eq 0 ]; then
+			test $crc2 = $crc || echo "lblk $lblk doesn't match block 2"
+		elif [ $rem3 -eq 0 ]; then
+			test $crc0 = $crc || echo "lblk $lblk doesn't match block 0"
+		elif [ $lblk -lt $((NR_BLKS / 2)) ]; then
+			test $crcZ = $crc || echo "lblk $lblk isn't zeroed"
+		fi
+	elif [ $rem5 -eq 0 ]; then
+		test $crc1 = $crc || echo "lblk $lblk doesn't match block 1"
+	elif [ $rem3 -eq 0 ]; then
+		test $crc0 = $crc || echo "lblk $lblk doesn't match block 0"
+	elif [ $lblk -lt $((NR_BLKS / 2)) ]; then
+		test $crcZ = $crc || echo "lblk $lblk isn't zeroed"
+	fi
+}
+
+seq 3 $((NR_BLKS - 1)) | while read lblk; do
+	err="$(check_block $lblk)"
+	test -n "$err" && echo "$lblk: $err"
+done
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/137.out b/tests/generic/137.out
new file mode 100644
index 00000000..7808988e
--- /dev/null
+++ b/tests/generic/137.out
@@ -0,0 +1,8 @@
+QA output created by 137
+Create the original file blocks
+fallocate half the file
+Reflink block zero to the threes
+Reflink block one to the fives
+Dedupe block two to the sevens
+Check block mappings
+2ea37912bdbd71b9ed4734d3141cbe9c  TEST_DIR/test-137/file1
diff --git a/tests/generic/group b/tests/generic/group
index aa31c8b8..50cc1324 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -118,8 +118,13 @@
 113 rw aio auto quick
 114 rw aio auto quick
 115 auto quick clone
+116 auto quick clone
 117 attr auto quick
+118 auto quick clone
+119 auto quick clone
 120 other auto quick
+121 auto quick clone
+122 auto quick clone
 123 perms auto quick
 124 pattern auto quick
 125 other auto
@@ -131,7 +136,10 @@
 131 perms auto quick
 132 pattern auto
 133 rw auto
+134 auto quick clone
 135 metadata auto quick
+136 auto quick clone
+137 auto quick clone
 141 rw auto quick
 169 rw metadata auto quick
 184 metadata auto quick
-- 
2.30.2