Re: [PATCH v2] common/filter.btrfs: introduce _filter_snapshot

Anand Jain <anand.jain@xxxxxxxxxx> · Tue, 9 Apr 2024 08:57:13 +0800

On 4/8/24 16:24, Qu Wenruo wrote:


在 2024/4/8 14:02, Anand Jain 写道:
Btrfs-progs commit 5f87b467a9e7 ("subvolume: output the prompt line only
when the ioctl succeeded") changed the output for snapshot command,
updating the golden outputs.

Create a helper filter to ensure the test cases pass on older 
btrfs-progs.

Another option is to remove the 'btrfs subvolume snapshot' command output
from the golden output and redirect it to /dev/null, but this strays from
the bug-fix objective.

Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
v2: The missed testcases included now.
     Merged following two patches in v1:
    common/filter.btrfs: add a new _filter_snapshot
    btrfs: create snapshot fix golden output

Still I do not think this is correct way to go.

3 points for my objection:

- Most test cases are already doing the redirection for "btrfs
   subvolume" command group
   Check my patch's commit message, overall the touched ones are less
   than 25% of all the "btrfs subvolume snapshot" calls.


I observed that. However, as I mentioned in the change log, the
objective of this patch is to make test cases work with both the
older and newer versions of btrfs-progs only. So, not a good idea
to remove the golden output completely.

- Missing handling for "btrfs subvolume delete"
   Sure you can add new filters, but I do not think it's worthy just a >    new filter.

Sorry, but test cases using 'btrfs subvolume delete' (without 
redirection) aren't failing.
Also, there is no change in the output of 'btrfs subvolume delete'.
Or perhaps I didn't understand what you meant.


- How to enforce the filters for the future test cases?
   Good luck if you're really pushing everyone to use the new filter.
   On the other hand, it's pretty instintive to just redirect the output.

Unfortunately, that has been the core fundamental design in fstests,
and I don't intend to change it in a patch meant to fix a bug.

It seems that we need to maintain the golden output fundamentals until
we find a better alternative or one that is reasonable enough to not
verify the output on a per-command basis, which I believe is your point
of view. I understand that. Also, commented, we could use
'_run_btrfs_util_prog subvolume xxx'. This would mean no golden output.
But as I mentioned, let's not address that objective within this bug
fix.

Thanks, -Anand

  common/filter.btrfs | 9 +++++++++
  tests/btrfs/001     | 3 ++-
  tests/btrfs/001.out | 2 +-
  tests/btrfs/152     | 6 +++---
  tests/btrfs/152.out | 4 ++--
  tests/btrfs/168     | 6 +++---
  tests/btrfs/168.out | 4 ++--
  tests/btrfs/169     | 6 +++---
  tests/btrfs/169.out | 4 ++--
  tests/btrfs/170     | 4 ++--
  tests/btrfs/170.out | 2 +-
  tests/btrfs/187     | 6 +++---
  tests/btrfs/187.out | 4 ++--
  tests/btrfs/188     | 8 ++++----
  tests/btrfs/188.out | 4 ++--
  tests/btrfs/189     | 4 ++--
  tests/btrfs/189.out | 2 +-
  tests/btrfs/191     | 6 +++---
  tests/btrfs/191.out | 4 ++--
  tests/btrfs/200     | 6 +++---
  tests/btrfs/200.out | 4 ++--
  tests/btrfs/202     | 4 ++--
  tests/btrfs/202.out | 2 +-
  tests/btrfs/203     | 6 +++---
  tests/btrfs/203.out | 4 ++--
  tests/btrfs/226     | 4 ++--
  tests/btrfs/226.out | 2 +-
  tests/btrfs/276     | 2 +-
  tests/btrfs/276.out | 2 +-
  tests/btrfs/280     | 4 ++--
  tests/btrfs/280.out | 2 +-
  tests/btrfs/281     | 4 ++--
  tests/btrfs/281.out | 2 +-
  tests/btrfs/283     | 4 ++--
  tests/btrfs/283.out | 2 +-
  tests/btrfs/287     | 4 ++--
  tests/btrfs/287.out | 4 ++--
  tests/btrfs/293     | 4 ++--
  tests/btrfs/293.out | 4 ++--
  tests/btrfs/300     | 2 +-
  tests/btrfs/300.out | 2 +-
  tests/btrfs/302     | 4 ++--
  tests/btrfs/302.out | 2 +-
  tests/btrfs/314     | 2 +-
  tests/btrfs/314.out | 4 ++--
  45 files changed, 92 insertions(+), 82 deletions(-)

diff --git a/common/filter.btrfs b/common/filter.btrfs
index 9ef9676175c9..7042edf16d2a 100644
--- a/common/filter.btrfs
+++ b/common/filter.btrfs
@@ -156,5 +156,14 @@ _filter_device_add()

  }

+_filter_snapshot()
+{
+    # btrfs-progs commit 5f87b467a9e7 ("btrfs-progs: subvolume: 
output the
+    # prompt line only when the ioctl succeeded") changed the output for
+    # btrfs subvolume snapshot, ensure that the latest fstests 
continue to
+    # work on older btrfs-progs without the above commit.
+    _filter_testdir_and_scratch | sed -e "s/Create a/Create/g"
+}
+
  # make sure this script returns success
  /bin/true
diff --git a/tests/btrfs/001 b/tests/btrfs/001
index 6c2639990373..cfcf2ade4590 100755
--- a/tests/btrfs/001
+++ b/tests/btrfs/001
@@ -26,7 +26,8 @@ dd if=/dev/zero of=$SCRATCH_MNT/foo bs=1M count=1 &> 
/dev/null
  echo "List root dir"
  ls $SCRATCH_MNT
  echo "Creating snapshot of root dir"
-$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | 
_filter_scratch
+$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | \
+                            _filter_snapshot
  echo "List root dir after snapshot"
  ls $SCRATCH_MNT
  echo "List snapshot dir"
diff --git a/tests/btrfs/001.out b/tests/btrfs/001.out
index c782bde96091..c9e32265da6a 100644
--- a/tests/btrfs/001.out
+++ b/tests/btrfs/001.out
@@ -3,7 +3,7 @@ Creating file foo in root dir
  List root dir
  foo
  Creating snapshot of root dir
-Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  List root dir after snapshot
  foo
  snap
diff --git a/tests/btrfs/152 b/tests/btrfs/152
index 75f576c3cfca..b89fe361e84e 100755
--- a/tests/btrfs/152
+++ b/tests/btrfs/152
@@ -11,7 +11,7 @@
  _begin_fstest auto quick metadata qgroup send

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs

  # real QA test starts here
  _supported_fs btrfs
@@ -32,9 +32,9 @@ touch $SCRATCH_MNT/subvol{1,2}/foo

  # Create base snapshots and send them
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol1 \
-    $SCRATCH_MNT/subvol1/.snapshots/1 | _filter_scratch
+    $SCRATCH_MNT/subvol1/.snapshots/1 | _filter_snapshot
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol2 \
-    $SCRATCH_MNT/subvol2/.snapshots/1 | _filter_scratch
+    $SCRATCH_MNT/subvol2/.snapshots/1 | _filter_snapshot
  for recv in recv1_1 recv1_2 recv2_1 recv2_2; do
      $BTRFS_UTIL_PROG send $SCRATCH_MNT/subvol1/.snapshots/1 2> 
/dev/null | \
          $BTRFS_UTIL_PROG receive $SCRATCH_MNT/${recv} | _filter_scratch
diff --git a/tests/btrfs/152.out b/tests/btrfs/152.out
index a95bb5797162..763d38cefe65 100644
--- a/tests/btrfs/152.out
+++ b/tests/btrfs/152.out
@@ -5,8 +5,8 @@ Create subvolume 'SCRATCH_MNT/recv1_1'
  Create subvolume 'SCRATCH_MNT/recv1_2'
  Create subvolume 'SCRATCH_MNT/recv2_1'
  Create subvolume 'SCRATCH_MNT/recv2_2'
-Create a readonly snapshot of 'SCRATCH_MNT/subvol1' in 
'SCRATCH_MNT/subvol1/.snapshots/1'
-Create a readonly snapshot of 'SCRATCH_MNT/subvol2' in 
'SCRATCH_MNT/subvol2/.snapshots/1'
+Create readonly snapshot of 'SCRATCH_MNT/subvol1' in 
'SCRATCH_MNT/subvol1/.snapshots/1'
+Create readonly snapshot of 'SCRATCH_MNT/subvol2' in 
'SCRATCH_MNT/subvol2/.snapshots/1'
  At subvol 1
  At subvol 1
  At subvol 1
diff --git a/tests/btrfs/168 b/tests/btrfs/168
index acc58b51ee39..78bc9b8f81bb 100755
--- a/tests/btrfs/168
+++ b/tests/btrfs/168
@@ -20,7 +20,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs

  # real QA test starts here
  _supported_fs btrfs
@@ -74,7 +74,7 @@ $BTRFS_UTIL_PROG property set $SCRATCH_MNT/sv1 ro false
  # Create a snapshot of the subvolume, to be used later as the parent 
snapshot
  # for an incremental send operation.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/sv1 
$SCRATCH_MNT/snap1 \
-    | _filter_scratch
+                            | _filter_snapshot

  # First do a full send of this snapshot.
  $FSSUM_PROG -A -f -w $send_files_dir/snap1.fssum $SCRATCH_MNT/snap1
@@ -88,7 +88,7 @@ $XFS_IO_PROG -c "pwrite -S 0x19 4K 8K" 
$SCRATCH_MNT/sv1/baz >>$seqres.full
  # Create a second snapshot of the subvolume, to be used later as the 
send
  # snapshot of an incremental send operation.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/sv1 
$SCRATCH_MNT/snap2 \
-    | _filter_scratch
+                            | _filter_snapshot

  # Temporarily turn the second snapshot to read-write mode and then 
open a file
  # descriptor on its foo file.
diff --git a/tests/btrfs/168.out b/tests/btrfs/168.out
index 6cfce8cd666c..0eccbc3fc416 100644
--- a/tests/btrfs/168.out
+++ b/tests/btrfs/168.out
@@ -1,9 +1,9 @@
  QA output created by 168
  Create subvolume 'SCRATCH_MNT/sv1'
  At subvol SCRATCH_MNT/sv1
-Create a readonly snapshot of 'SCRATCH_MNT/sv1' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT/sv1' in 'SCRATCH_MNT/snap1'
  At subvol SCRATCH_MNT/snap1
-Create a readonly snapshot of 'SCRATCH_MNT/sv1' in 'SCRATCH_MNT/snap2'
+Create readonly snapshot of 'SCRATCH_MNT/sv1' in 'SCRATCH_MNT/snap2'
  At subvol SCRATCH_MNT/snap2
  At subvol sv1
  OK
diff --git a/tests/btrfs/169 b/tests/btrfs/169
index 009fdaee7c46..e507692fd0c6 100755
--- a/tests/btrfs/169
+++ b/tests/btrfs/169
@@ -20,7 +20,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs

  # real QA test starts here
  _supported_fs btrfs
@@ -44,7 +44,7 @@ $XFS_IO_PROG -f -c "falloc -k 0 4M" \
           $SCRATCH_MNT/foobar | _filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap1 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot
  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/snap1 
2>&1 \
      | _filter_scratch

@@ -54,7 +54,7 @@ $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap 
$SCRATCH_MNT/snap1 2>&1 \
  $XFS_IO_PROG -c "fpunch 1M 2M" $SCRATCH_MNT/foobar

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap2 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot
  $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/snap1 -f $send_files_dir/2.snap \
           $SCRATCH_MNT/snap2 2>&1 | _filter_scratch

diff --git a/tests/btrfs/169.out b/tests/btrfs/169.out
index ba77bf0adbe3..c3467d5162d9 100644
--- a/tests/btrfs/169.out
+++ b/tests/btrfs/169.out
@@ -1,9 +1,9 @@
  QA output created by 169
  wrote 1048576/1048576 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
  At subvol SCRATCH_MNT/snap1
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
  At subvol SCRATCH_MNT/snap2
  File digest in the original filesystem:
  d31659e82e87798acd4669a1e0a19d4f  SCRATCH_MNT/snap2/foobar
diff --git a/tests/btrfs/170 b/tests/btrfs/170
index ab105d36fb96..50b6fa8654d4 100755
--- a/tests/btrfs/170
+++ b/tests/btrfs/170
@@ -12,7 +12,7 @@
  _begin_fstest auto quick snapshot prealloc

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs

  # real QA test starts here
  _supported_fs btrfs
@@ -46,7 +46,7 @@ md5sum $SCRATCH_MNT/foobar | _filter_scratch

  # Create a snapshot of the subvolume where our file is.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  # Cleanly unmount the filesystem.
  _scratch_unmount
diff --git a/tests/btrfs/170.out b/tests/btrfs/170.out
index 4c5fd87a8b17..ebdf872c7eb2 100644
--- a/tests/btrfs/170.out
+++ b/tests/btrfs/170.out
@@ -3,6 +3,6 @@ wrote 131072/131072 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  File digest after write:
  85054e9e74bc3ae186d693890106b71f  SCRATCH_MNT/foobar
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  File digest after mounting the filesystem again:
  85054e9e74bc3ae186d693890106b71f  SCRATCH_MNT/foobar
diff --git a/tests/btrfs/187 b/tests/btrfs/187
index d3cf05a1bd92..f0935c9e6516 100755
--- a/tests/btrfs/187
+++ b/tests/btrfs/187
@@ -17,7 +17,7 @@ _begin_fstest auto send dedupe clone balance

  # Import common functions.
  . ./common/attr
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink

  # real QA test starts here
@@ -152,7 +152,7 @@ done
  wait ${create_pids[@]}

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap1 \
-    | _filter_scratch
+                            | _filter_snapshot

  # Add some more files, so that that are substantial differences 
between the
  # two test snapshots used for an incremental send later.
@@ -184,7 +184,7 @@ done
  wait ${setxattr_pids[@]}

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap2 \
-    | _filter_scratch
+                            | _filter_snapshot

  full_send_loop 5 &
  full_send_pid=$!
diff --git a/tests/btrfs/187.out b/tests/btrfs/187.out
index ab522cfe7e8c..208cfb212b8f 100644
--- a/tests/btrfs/187.out
+++ b/tests/btrfs/187.out
@@ -1,3 +1,3 @@
  QA output created by 187
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
diff --git a/tests/btrfs/188 b/tests/btrfs/188
index fcaf84b15053..feeb4397c234 100755
--- a/tests/btrfs/188
+++ b/tests/btrfs/188
@@ -21,7 +21,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs

  # real QA test starts here
  _supported_fs btrfs
@@ -45,16 +45,16 @@ $XFS_IO_PROG -f -c "pwrite -S 0xab 0 500K" 
$SCRATCH_MNT/foobar | _filter_xfs_io
  $XFS_IO_PROG -c "falloc -k 1200K 800K" $SCRATCH_MNT/foobar

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/base 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/base 
2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  # Now punch a hole that drops all the extents within the file's size.
  $XFS_IO_PROG -c "fpunch 0 500K" $SCRATCH_MNT/foobar

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/incr 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/base -f $send_files_dir/2.snap \
      $SCRATCH_MNT/incr 2>&1 | _filter_scratch
diff --git a/tests/btrfs/188.out b/tests/btrfs/188.out
index 260988e60084..586543cfde61 100644
--- a/tests/btrfs/188.out
+++ b/tests/btrfs/188.out
@@ -1,9 +1,9 @@
  QA output created by 188
  wrote 512000/512000 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
  At subvol SCRATCH_MNT/base
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
  At subvol SCRATCH_MNT/incr
  File digest in the original filesystem:
  816df6f64deba63b029ca19d880ee10a  SCRATCH_MNT/incr/foobar
diff --git a/tests/btrfs/189 b/tests/btrfs/189
index ec6e56fa0020..244ca84299fa 100755
--- a/tests/btrfs/189
+++ b/tests/btrfs/189
@@ -23,7 +23,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink

  # real QA test starts here
@@ -46,7 +46,7 @@ $XFS_IO_PROG -f -c "pwrite -S 0x4d 0 2M" 
$SCRATCH_MNT/baz | _filter_xfs_io
  $XFS_IO_PROG -f -c "pwrite -S 0xe2 0 2M" $SCRATCH_MNT/zoo | 
_filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/base 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/base 
2>&1 \
      | _filter_scratch
diff --git a/tests/btrfs/189.out b/tests/btrfs/189.out
index 79c70b03a1ba..a516167578e4 100644
--- a/tests/btrfs/189.out
+++ b/tests/btrfs/189.out
@@ -7,7 +7,7 @@ wrote 2097152/2097152 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  wrote 2097152/2097152 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
  At subvol SCRATCH_MNT/base
  linked 131072/131072 bytes at offset 655360
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
diff --git a/tests/btrfs/191 b/tests/btrfs/191
index 3c565d0ad209..9c1fd80b7583 100755
--- a/tests/btrfs/191
+++ b/tests/btrfs/191
@@ -19,7 +19,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink

  # real QA test starts here
@@ -44,7 +44,7 @@ $XFS_IO_PROG -c "pwrite -S 0xb8 512K 512K" 
$SCRATCH_MNT/foo | _filter_xfs_io

  # Create the base snapshot and the parent send stream from it.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/mysnap1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1 
2>&1 \
      | _filter_scratch
@@ -55,7 +55,7 @@ $XFS_IO_PROG -f -c "pwrite -S 0xb8 0 1M" 
$SCRATCH_MNT/bar | _filter_xfs_io
  # Create the second snapshot, used for the incremental send, before 
doing the
  # file deduplication.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/mysnap2 \
-    | _filter_scratch
+                            | _filter_snapshot

  # Now before creating the incremental send stream:
  #
diff --git a/tests/btrfs/191.out b/tests/btrfs/191.out
index 4269803cce1e..ad4d779814f7 100644
--- a/tests/btrfs/191.out
+++ b/tests/btrfs/191.out
@@ -3,11 +3,11 @@ wrote 524288/524288 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  wrote 524288/524288 bytes at offset 524288
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/mysnap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/mysnap1'
  At subvol SCRATCH_MNT/mysnap1
  wrote 1048576/1048576 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/mysnap2'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/mysnap2'
  deduped 524288/524288 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  deduped 524288/524288 bytes at offset 524288
diff --git a/tests/btrfs/200 b/tests/btrfs/200
index 5ce3775f2222..3d18165a630f 100755
--- a/tests/btrfs/200
+++ b/tests/btrfs/200
@@ -19,7 +19,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink
  . ./common/punch

@@ -52,7 +52,7 @@ $XFS_IO_PROG -f -c "pwrite -S 0xc7 -b 64K 0 64K" 
$SCRATCH_MNT/bar \
      | _filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/base 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/base 
2>&1 \
      | _filter_scratch
@@ -64,7 +64,7 @@ $XFS_IO_PROG -c "reflink $SCRATCH_MNT/bar 0 64K 64K" 
$SCRATCH_MNT/bar \
      | _filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/incr 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/base -f $send_files_dir/2.snap \
      $SCRATCH_MNT/incr 2>&1 | _filter_scratch
diff --git a/tests/btrfs/200.out b/tests/btrfs/200.out
index 3eec567e97fe..5c1cd855fa99 100644
--- a/tests/btrfs/200.out
+++ b/tests/btrfs/200.out
@@ -5,11 +5,11 @@ linked 65536/65536 bytes at offset 65536
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  wrote 65536/65536 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
  At subvol SCRATCH_MNT/base
  linked 65536/65536 bytes at offset 65536
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
  At subvol SCRATCH_MNT/incr
  At subvol base
  At snapshot incr
diff --git a/tests/btrfs/202 b/tests/btrfs/202
index 5f0429f18bf9..57ecbe47c0bb 100755
--- a/tests/btrfs/202
+++ b/tests/btrfs/202
@@ -8,7 +8,7 @@
  . ./common/preamble
  _begin_fstest auto quick subvol snapshot

-. ./common/filter
+. ./common/filter.btrfs

  _supported_fs btrfs
  _require_scratch
@@ -28,7 +28,7 @@ _scratch_mount
  $BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/a | _filter_scratch
  $BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/a/b | _filter_scratch
  $BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT/a $SCRATCH_MNT/c \
-    | _filter_scratch
+                            | _filter_snapshot

  # Need the dummy entry created so that we get the invalid removal 
when we rmdir
  ls $SCRATCH_MNT/c/b
diff --git a/tests/btrfs/202.out b/tests/btrfs/202.out
index 7f33d49f889c..6b80810e96ed 100644
--- a/tests/btrfs/202.out
+++ b/tests/btrfs/202.out
@@ -1,4 +1,4 @@
  QA output created by 202
  Create subvolume 'SCRATCH_MNT/a'
  Create subvolume 'SCRATCH_MNT/a/b'
-Create a snapshot of 'SCRATCH_MNT/a' in 'SCRATCH_MNT/c'
+Create snapshot of 'SCRATCH_MNT/a' in 'SCRATCH_MNT/c'
diff --git a/tests/btrfs/203 b/tests/btrfs/203
index e506118e2cd2..e62f09edb570 100755
--- a/tests/btrfs/203
+++ b/tests/btrfs/203
@@ -20,7 +20,7 @@ _cleanup()
  }

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink

  # real QA test starts here
@@ -44,7 +44,7 @@ _scratch_mount
  $XFS_IO_PROG -f -c "pwrite -S 0xf1 0 64K" $SCRATCH_MNT/foobar | 
_filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/base 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap $SCRATCH_MNT/base 
2>&1 \
      | _filter_scratch
@@ -70,7 +70,7 @@ $XFS_IO_PROG -c "pwrite -S 0xab 512K 64K" \
           $SCRATCH_MNT/foobar | _filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/incr 2>&1 \
-    | _filter_scratch
+                            | _filter_snapshot

  $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/base -f $send_files_dir/2.snap \
           $SCRATCH_MNT/incr 2>&1 | _filter_scratch
diff --git a/tests/btrfs/203.out b/tests/btrfs/203.out
index 58739a98cd1b..59c2564bc61b 100644
--- a/tests/btrfs/203.out
+++ b/tests/btrfs/203.out
@@ -1,7 +1,7 @@
  QA output created by 203
  wrote 65536/65536 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/base'
  At subvol SCRATCH_MNT/base
  wrote 65536/65536 bytes at offset 524288
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
@@ -15,7 +15,7 @@ wrote 65536/65536 bytes at offset 786432
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  linked 196608/196608 bytes at offset 196608
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/incr'
  At subvol SCRATCH_MNT/incr
  File foobar digest in the original filesystem:
  2b76b23b62fdbbbcae1ee37eec84fd7d
diff --git a/tests/btrfs/226 b/tests/btrfs/226
index 7034fcc7b2a5..f96a832505a4 100755
--- a/tests/btrfs/226
+++ b/tests/btrfs/226
@@ -11,7 +11,7 @@
  _begin_fstest auto quick rw snapshot clone prealloc punch

  # Import common functions.
-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink

  # real QA test starts here
@@ -51,7 +51,7 @@ $XFS_IO_PROG -s -c "pwrite -S 0xab 0 64K" \
           $SCRATCH_MNT/f2 | _filter_xfs_io

  $BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap \
-    | _filter_scratch
+                            | _filter_snapshot

  # Write into the range of the first extent so that that range no 
longer has a
  # shared extent.
diff --git a/tests/btrfs/226.out b/tests/btrfs/226.out
index c63982b0ba4a..1855e5255fce 100644
--- a/tests/btrfs/226.out
+++ b/tests/btrfs/226.out
@@ -13,7 +13,7 @@ wrote 65536/65536 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  wrote 65536/65536 bytes at offset 65536
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  wrote 65536/65536 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  pwrite: Resource temporarily unavailable
diff --git a/tests/btrfs/276 b/tests/btrfs/276
index f15f20824350..30799ebe449e 100755
--- a/tests/btrfs/276
+++ b/tests/btrfs/276
@@ -105,7 +105,7 @@ sync
  echo "Number of non-shared extents in the whole file: 
$(count_not_shared_extents)"

  # Creating a snapshot.
-$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | 
_filter_scratch
+$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | 
_filter_snapshot

  # We have a snapshot, so now all extents should be reported as shared.
  echo "Number of shared extents in the whole file: 
$(count_shared_extents)"
diff --git a/tests/btrfs/276.out b/tests/btrfs/276.out
index 352e06b4d4b2..27ea29bdf87b 100644
--- a/tests/btrfs/276.out
+++ b/tests/btrfs/276.out
@@ -1,6 +1,6 @@
  QA output created by 276
  Number of non-shared extents in the whole file: 2000
-Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  Number of shared extents in the whole file: 2000
  wrote 65536/65536 bytes at offset 524288
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
diff --git a/tests/btrfs/280 b/tests/btrfs/280
index fc049adb0b19..4957825b7e4b 100755
--- a/tests/btrfs/280
+++ b/tests/btrfs/280
@@ -15,7 +15,7 @@
  . ./common/preamble
  _begin_fstest auto quick compress snapshot fiemap

-. ./common/filter
+. ./common/filter.btrfs
  . ./common/punch # for _filter_fiemap_flags

  _supported_fs btrfs
@@ -37,7 +37,7 @@ _scratch_mount -o compress
  $XFS_IO_PROG -f -c "pwrite -b 1M 0 128M" $SCRATCH_MNT/foo | 
_filter_xfs_io

  # Create a RW snapshot of the default subvolume.
-$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | 
_filter_scratch
+$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | 
_filter_snapshot

  echo
  echo "File foo fiemap before COWing extent:"
diff --git a/tests/btrfs/280.out b/tests/btrfs/280.out
index 5371f3b01551..4f0e5d2287b6 100644
--- a/tests/btrfs/280.out
+++ b/tests/btrfs/280.out
@@ -1,7 +1,7 @@
  QA output created by 280
  wrote 134217728/134217728 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'

  File foo fiemap before COWing extent:

diff --git a/tests/btrfs/281 b/tests/btrfs/281
index ddc7d9e8b06d..2943998bee20 100755
--- a/tests/btrfs/281
+++ b/tests/btrfs/281
@@ -15,7 +15,7 @@
  . ./common/preamble
  _begin_fstest auto quick send compress clone fiemap

-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink
  . ./common/punch # for _filter_fiemap_flags

@@ -53,7 +53,7 @@ $XFS_IO_PROG -c "reflink $SCRATCH_MNT/bar 0 0 64K" 
$SCRATCH_MNT/foo \

  echo "Creating snapshot and a send stream for it..."
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/snap \
-    | _filter_scratch
+    | _filter_snapshot
  $BTRFS_UTIL_PROG send --compressed-data -f $send_stream 
$SCRATCH_MNT/snap 2>&1 \
      | _filter_scratch

diff --git a/tests/btrfs/281.out b/tests/btrfs/281.out
index 2585e3e567db..49c23a00baea 100644
--- a/tests/btrfs/281.out
+++ b/tests/btrfs/281.out
@@ -6,7 +6,7 @@ XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX 
ops/sec)
  linked 65536/65536 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  Creating snapshot and a send stream for it...
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  At subvol SCRATCH_MNT/snap
  Creating a new filesystem to receive the send stream...
  At subvol snap
diff --git a/tests/btrfs/283 b/tests/btrfs/283
index 118df08b8958..d9b8c1d24b8f 100755
--- a/tests/btrfs/283
+++ b/tests/btrfs/283
@@ -11,7 +11,7 @@
  . ./common/preamble
  _begin_fstest auto quick send clone fiemap

-. ./common/filter
+. ./common/filter.btrfs
  . ./common/reflink
  . ./common/punch # for _filter_fiemap_flags

@@ -58,7 +58,7 @@ $XFS_IO_PROG -c "pwrite -S 0xcd -b 64K 64K 64K" 
$SCRATCH_MNT/foo | _filter_xfs_i

  echo "Creating snapshot and a send stream for it..."
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/snap \
-    | _filter_scratch
+    | _filter_snapshot

  $BTRFS_UTIL_PROG send -f $send_stream $SCRATCH_MNT/snap 2>&1 | 
_filter_scratch

diff --git a/tests/btrfs/283.out b/tests/btrfs/283.out
index 286dae332eff..37f425bf8312 100644
--- a/tests/btrfs/283.out
+++ b/tests/btrfs/283.out
@@ -4,7 +4,7 @@ XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX 
ops/sec)
  wrote 65536/65536 bytes at offset 65536
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
  Creating snapshot and a send stream for it...
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
  At subvol SCRATCH_MNT/snap
  Creating a new filesystem to receive the send stream...
  At subvol snap
diff --git a/tests/btrfs/287 b/tests/btrfs/287
index 64e6ef35250c..dec812760917 100755
--- a/tests/btrfs/287
+++ b/tests/btrfs/287
@@ -112,9 +112,9 @@ query_logical_ino -o $bytenr

  # Now create two snapshots and then do some queries.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap1 \
-    | _filter_scratch
+    | _filter_snapshot
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap2 \
-    | _filter_scratch
+    | _filter_snapshot

  snap1_id=$(_btrfs_get_subvolid $SCRATCH_MNT snap1)
  snap2_id=$(_btrfs_get_subvolid $SCRATCH_MNT snap2)
diff --git a/tests/btrfs/287.out b/tests/btrfs/287.out
index 30eac8fa444c..5798ec5d7c55 100644
--- a/tests/btrfs/287.out
+++ b/tests/btrfs/287.out
@@ -41,8 +41,8 @@ resolve first extent +3M offset with ignore offset 
option:
  inode 257 offset 16777216 root 5
  inode 257 offset 8388608 root 5
  inode 257 offset 2097152 root 5
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
  resolve first extent:
  inode 257 offset 16777216 snap2
  inode 257 offset 8388608 snap2
diff --git a/tests/btrfs/293 b/tests/btrfs/293
index 06f96dc414b0..fffdcd53441a 100755
--- a/tests/btrfs/293
+++ b/tests/btrfs/293
@@ -32,9 +32,9 @@ swap_file="$SCRATCH_MNT/swapfile"
  _format_swapfile $swap_file $(($(_get_page_size) * 64)) >> $seqres.full

  echo "Creating first snapshot..."
-$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap1 | _filter_scratch
+$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT 
$SCRATCH_MNT/snap1 | _filter_snapshot
  echo "Creating second snapshot..."
-$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap2 | 
_filter_scratch
+$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap2 | 
_filter_snapshot

  echo "Activating swap file... (should fail due to snapshots)"
  _swapon_file $swap_file 2>&1 | _filter_scratch
diff --git a/tests/btrfs/293.out b/tests/btrfs/293.out
index fd04ac9139b8..7b2947a705e7 100644
--- a/tests/btrfs/293.out
+++ b/tests/btrfs/293.out
@@ -1,8 +1,8 @@
  QA output created by 293
  Creating first snapshot...
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
  Creating second snapshot...
-Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
+Create snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap2'
  Activating swap file... (should fail due to snapshots)
  swapon: SCRATCH_MNT/swapfile: swapon failed: Invalid argument
  Deleting first snapshot...
diff --git a/tests/btrfs/300 b/tests/btrfs/300
index 8a0eaecf87f7..00ffcb82eae6 100755
--- a/tests/btrfs/300
+++ b/tests/btrfs/300
@@ -43,7 +43,7 @@ $BTRFS_UTIL_PROG subvolume create subvol;
  touch subvol/{1,2,3};
  $BTRFS_UTIL_PROG subvolume create subvol/subsubvol;
  touch subvol/subsubvol/{4,5,6};
-$BTRFS_UTIL_PROG subvolume snapshot subvol snapshot;
+$BTRFS_UTIL_PROG subvolume snapshot subvol snapshot | sed -e 
's/Create a/Create/g';
  "

  find $test_dir/. -printf "%M %u %g ./%P\n"
diff --git a/tests/btrfs/300.out b/tests/btrfs/300.out
index 6e94447e87ac..06a75bff5ce1 100644
--- a/tests/btrfs/300.out
+++ b/tests/btrfs/300.out
@@ -1,7 +1,7 @@
  QA output created by 300
  Create subvolume './subvol'
  Create subvolume 'subvol/subsubvol'
-Create a snapshot of 'subvol' in './snapshot'
+Create snapshot of 'subvol' in './snapshot'
  drwxr-xr-x fsgqa fsgqa ./
  drwxr-xr-x fsgqa fsgqa ./subvol
  -rw-r--r-- fsgqa fsgqa ./subvol/1
diff --git a/tests/btrfs/302 b/tests/btrfs/302
index f3e6044b5251..52d712ac50de 100755
--- a/tests/btrfs/302
+++ b/tests/btrfs/302
@@ -15,7 +15,7 @@
  . ./common/preamble
  _begin_fstest auto quick snapshot subvol

-. ./common/filter
+. ./common/filter.btrfs

  _supported_fs btrfs
  _require_scratch
@@ -46,7 +46,7 @@ $FSSUM_PROG -A -f -w $fssum_file $SCRATCH_MNT/subvol
  # Now create a snapshot of the subvolume and make it accessible from 
within the
  # subvolume.
  $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol \
-         $SCRATCH_MNT/subvol/snap | _filter_scratch
+                 $SCRATCH_MNT/subvol/snap | _filter_snapshot

  # Now unmount and mount again the fs. We want to verify we are able 
to read all
  # metadata for the snapshot from disk (no IO failures, etc).
diff --git a/tests/btrfs/302.out b/tests/btrfs/302.out
index 8770aefc99c8..c08f8c135538 100644
--- a/tests/btrfs/302.out
+++ b/tests/btrfs/302.out
@@ -1,4 +1,4 @@
  QA output created by 302
  Create subvolume 'SCRATCH_MNT/subvol'
-Create a readonly snapshot of 'SCRATCH_MNT/subvol' in 
'SCRATCH_MNT/subvol/snap'
+Create readonly snapshot of 'SCRATCH_MNT/subvol' in 
'SCRATCH_MNT/subvol/snap'
  OK
diff --git a/tests/btrfs/314 b/tests/btrfs/314
index 887cb69eb79c..598af611d249 100755
--- a/tests/btrfs/314
+++ b/tests/btrfs/314
@@ -43,7 +43,7 @@ send_receive_tempfsid()

      $XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' ${src}/foo | 
_filter_xfs_io
      $BTRFS_UTIL_PROG subvolume snapshot -r ${src} ${src}/snap1 | \
-                        _filter_testdir_and_scratch
+                            _filter_snapshot

      echo Send ${src} | _filter_testdir_and_scratch
      $BTRFS_UTIL_PROG send -f ${sendfile} ${src}/snap1 2>&1 | \
diff --git a/tests/btrfs/314.out b/tests/btrfs/314.out
index 21963899c2b2..d29fe51b3ff9 100644
--- a/tests/btrfs/314.out
+++ b/tests/btrfs/314.out
@@ -3,7 +3,7 @@ QA output created by 314
  From non-tempfsid SCRATCH_MNT to tempfsid TEST_DIR/314/tempfsid_mnt
  wrote 9000/9000 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
+Create readonly snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap1'
  Send SCRATCH_MNT
  At subvol SCRATCH_MNT/snap1
  Receive TEST_DIR/314/tempfsid_mnt
@@ -14,7 +14,7 @@ Recv:    42d69d1a6d333a7ebdf64792a555e392  
TEST_DIR/314/tempfsid_mnt/snap1/foo
  From tempfsid TEST_DIR/314/tempfsid_mnt to non-tempfsid SCRATCH_MNT
  wrote 9000/9000 bytes at offset 0
  XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-Create a readonly snapshot of 'TEST_DIR/314/tempfsid_mnt' in 
'TEST_DIR/314/tempfsid_mnt/snap1'
+Create readonly snapshot of 'TEST_DIR/314/tempfsid_mnt' in 
'TEST_DIR/314/tempfsid_mnt/snap1'
  Send TEST_DIR/314/tempfsid_mnt
  At subvol TEST_DIR/314/tempfsid_mnt/snap1
  Receive SCRATCH_MNT







