qemu-block
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH v2 10/21] iotests: Replace IMGOPTS= by -o


From: Maxim Levitsky
Subject: Re: [PATCH v2 10/21] iotests: Replace IMGOPTS= by -o
Date: Wed, 06 Nov 2019 17:47:05 +0200

On Tue, 2019-10-15 at 16:27 +0200, Max Reitz wrote:
> Tests should not overwrite all user-supplied image options, but only add
> to it (which will effectively overwrite conflicting values).  Accomplish
> this by passing options to _make_test_img via -o instead of $IMGOPTS.
> 
> For some tests, there is no functional change because they already only
> appended options to IMGOPTS.  For these, this patch is just a
> simplification.
> 
> For others, this is a change, so they now heed user-specified $IMGOPTS.
> Some of those tests do not work with all image options, though, so we
> need to disable them accordingly.
> 
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  tests/qemu-iotests/031 |  9 ++++---
>  tests/qemu-iotests/039 | 24 ++++++------------
>  tests/qemu-iotests/059 | 18 ++++++-------
>  tests/qemu-iotests/060 |  6 ++---
>  tests/qemu-iotests/061 | 57 ++++++++++++++++++++++--------------------
>  tests/qemu-iotests/079 |  3 +--
>  tests/qemu-iotests/106 |  2 +-
>  tests/qemu-iotests/108 |  2 +-
>  tests/qemu-iotests/112 | 32 ++++++++++++------------
>  tests/qemu-iotests/115 |  3 +--
>  tests/qemu-iotests/121 |  6 ++---
>  tests/qemu-iotests/125 |  2 +-
>  tests/qemu-iotests/137 |  2 +-
>  tests/qemu-iotests/138 |  3 +--
>  tests/qemu-iotests/175 |  2 +-
>  tests/qemu-iotests/190 |  2 +-
>  tests/qemu-iotests/191 |  3 +--
>  tests/qemu-iotests/220 |  4 ++-
>  tests/qemu-iotests/243 |  6 +++--
>  tests/qemu-iotests/244 | 10 +++++---
>  tests/qemu-iotests/250 |  3 +--
>  tests/qemu-iotests/265 |  2 +-
>  22 files changed, 100 insertions(+), 101 deletions(-)
> 



> diff --git a/tests/qemu-iotests/031 b/tests/qemu-iotests/031
> index a3c25ec237..c44fcf91bb 100755
> --- a/tests/qemu-iotests/031
> +++ b/tests/qemu-iotests/031
> @@ -40,19 +40,22 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>  # This tests qcow2-specific low-level functionality
>  _supported_fmt qcow2
>  _supported_proto file
> +# We want to test compat=0.10, which does not support refcount widths
> +# other than 16
> +_unsupported_imgopts 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
In theory the test could be cloned to only restrict refcount_bits to 16 for the 
0.10 version
but this is probably not worth it given the nature of the test.

>  
>  CLUSTER_SIZE=65536
>  
>  # qcow2.py output depends on the exact options used, so override the command
>  # line here as an exception
> -for IMGOPTS in "compat=0.10" "compat=1.1"; do
> +for compat in "compat=0.10" "compat=1.1"; do
>  
>      echo
> -    echo ===== Testing with -o $IMGOPTS =====
> +    echo ===== Testing with -o $compat =====
>      echo
>      echo === Create image with unknown header extension ===
>      echo
> -    _make_test_img 64M
> +    _make_test_img -o $compat 64M
>      $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test 
> header extension"
>      $PYTHON qcow2.py "$TEST_IMG" dump-header
>      _check_test_img
> 


> diff --git a/tests/qemu-iotests/039 b/tests/qemu-iotests/039
> index 325da63a4c..99563bf126 100755
> --- a/tests/qemu-iotests/039
> +++ b/tests/qemu-iotests/039
> @@ -50,8 +50,7 @@ size=128M
>  echo
>  echo "== Checking that image is clean on shutdown =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" $size
>  
>  $QEMU_IO -c "write -P 0x5a 0 512" "$TEST_IMG" | _filter_qemu_io
>  
> @@ -62,8 +61,7 @@ _check_test_img
>  echo
>  echo "== Creating a dirty image file =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" $size
>  
>  _NO_VALGRIND \
>  $QEMU_IO -c "write -P 0x5a 0 512" \
> @@ -98,8 +96,7 @@ $QEMU_IO -c "read -P 0x5a 0 512" "$TEST_IMG" | 
> _filter_qemu_io
>  echo
>  echo "== Opening a dirty image read/write should repair it =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" $size
>  
>  _NO_VALGRIND \
>  $QEMU_IO -c "write -P 0x5a 0 512" \
> @@ -117,8 +114,7 @@ $PYTHON qcow2.py "$TEST_IMG" dump-header | grep 
> incompatible_features
>  echo
>  echo "== Creating an image file with lazy_refcounts=off =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=off"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=off" $size
>  
>  _NO_VALGRIND \
>  $QEMU_IO -c "write -P 0x5a 0 512" \
> @@ -132,11 +128,9 @@ _check_test_img
>  echo
>  echo "== Committing to a backing file with lazy_refcounts=on =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on"
> -TEST_IMG="$TEST_IMG".base _make_test_img $size
> +TEST_IMG="$TEST_IMG".base _make_test_img -o "compat=1.1,lazy_refcounts=on" 
> $size
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on,backing_file=$TEST_IMG.base"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=on,backing_file=$TEST_IMG.base" 
> $size
>  
>  $QEMU_IO -c "write 0 512" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG commit "$TEST_IMG"
> @@ -151,8 +145,7 @@ TEST_IMG="$TEST_IMG".base _check_test_img
>  echo
>  echo "== Changing lazy_refcounts setting at runtime =="
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=off"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=off" $size
>  
>  _NO_VALGRIND \
>  $QEMU_IO -c "reopen -o lazy-refcounts=on" \
> @@ -164,8 +157,7 @@ $QEMU_IO -c "reopen -o lazy-refcounts=on" \
>  $PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features
>  _check_test_img
>  
> -IMGOPTS="compat=1.1,lazy_refcounts=on"
> -_make_test_img $size
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" $size
>  
>  _NO_VALGRIND \
>  $QEMU_IO -c "reopen -o lazy-refcounts=off" \
Looks good.



> diff --git a/tests/qemu-iotests/059 b/tests/qemu-iotests/059
> index 10bfbaecec..3941c3f0c2 100755
> --- a/tests/qemu-iotests/059
> +++ b/tests/qemu-iotests/059
> @@ -70,18 +70,18 @@ poke_file "$TEST_IMG" "$grain_table_size_offset" 
> "\x01\x00\x00\x00"
>  
>  echo
>  echo "=== Testing monolithicFlat creation and opening ==="
> -IMGOPTS="subformat=monolithicFlat" _make_test_img 2G
> +_make_test_img -o "subformat=monolithicFlat" 2G
>  _img_info
>  _cleanup_test_img
>  
>  echo
>  echo "=== Testing monolithicFlat with zeroed_grain ==="
> -IMGOPTS="subformat=monolithicFlat,zeroed_grain=on" _make_test_img 2G
> +_make_test_img -o "subformat=monolithicFlat,zeroed_grain=on" 2G
>  _cleanup_test_img
>  
>  echo
>  echo "=== Testing big twoGbMaxExtentFlat ==="
> -IMGOPTS="subformat=twoGbMaxExtentFlat" _make_test_img 1000G
> +_make_test_img -o "subformat=twoGbMaxExtentFlat" 1000G
>  $QEMU_IMG info $TEST_IMG | _filter_testdir | sed -e 's/cid: [0-9]*/cid: 
> XXXXXXXX/'
>  _cleanup_test_img
>  
> @@ -101,13 +101,13 @@ _img_info
>  
>  echo
>  echo "=== Testing truncated sparse ==="
> -IMGOPTS="subformat=monolithicSparse" _make_test_img 100G
> +_make_test_img -o "subformat=monolithicSparse" 100G
>  truncate -s 10M $TEST_IMG
>  _img_info
>  
>  echo
>  echo "=== Converting to streamOptimized from image with small cluster 
> size==="
> -TEST_IMG="$TEST_IMG.qcow2" IMGFMT=qcow2 IMGOPTS="cluster_size=4096" 
> _make_test_img 1G
> +TEST_IMG="$TEST_IMG.qcow2" IMGFMT=qcow2 _make_test_img -o 
> "cluster_size=4096" 1G
>  $QEMU_IO -f qcow2 -c "write -P 0xa 0 512" "$TEST_IMG.qcow2" | _filter_qemu_io
>  $QEMU_IO -f qcow2 -c "write -P 0xb 10240 512" "$TEST_IMG.qcow2" | 
> _filter_qemu_io
>  $QEMU_IMG convert -f qcow2 -O vmdk -o subformat=streamOptimized 
> "$TEST_IMG.qcow2" "$TEST_IMG" 2>&1
> @@ -117,7 +117,7 @@ echo "=== Testing monolithicFlat with internally 
> generated JSON file name ==="
>  
>  echo '--- blkdebug ---'
>  # Should work, because bdrv_dirname() works fine with blkdebug
> -IMGOPTS="subformat=monolithicFlat" _make_test_img 64M
> +_make_test_img -o "subformat=monolithicFlat" 64M
>  $QEMU_IO -c "open -o 
> driver=$IMGFMT,file.driver=blkdebug,file.image.filename=$TEST_IMG,file.inject-error.0.event=read_aio"
>  \
>           -c info \
>      2>&1 \
> @@ -126,7 +126,7 @@ _cleanup_test_img
>  
>  echo '--- quorum ---'
>  # Should not work, because bdrv_dirname() does not work with quorum
> -IMGOPTS="subformat=monolithicFlat" _make_test_img 64M
> +_make_test_img -o "subformat=monolithicFlat" 64M
>  cp "$TEST_IMG" "$TEST_IMG.orig"
>  
>  filename="json:{
> @@ -161,7 +161,7 @@ _cleanup_test_img
>  
>  echo
>  echo "=== Testing 4TB monolithicFlat creation and IO ==="
> -IMGOPTS="subformat=monolithicFlat" _make_test_img 4T
> +_make_test_img -o "subformat=monolithicFlat" 4T
>  _img_info
>  $QEMU_IO -c "write -P 0xa 900G 512" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c "read -v 900G 1024" "$TEST_IMG" | _filter_qemu_io
> @@ -170,7 +170,7 @@ _cleanup_test_img
>  echo
>  echo "=== Testing qemu-img map on extents ==="
>  for fmt in monolithicSparse twoGbMaxExtentSparse; do
> -    IMGOPTS="subformat=$fmt" _make_test_img 31G
> +    _make_test_img -o "subformat=$fmt" 31G
>      $QEMU_IO -c "write 65024 1k" "$TEST_IMG" | _filter_qemu_io
>      $QEMU_IO -c "write 2147483136 1k" "$TEST_IMG" | _filter_qemu_io
>      $QEMU_IO -c "write 5G 1k" "$TEST_IMG" | _filter_qemu_io

Looks good. Another test that pokes at guessed locations... :-)


> diff --git a/tests/qemu-iotests/060 b/tests/qemu-iotests/060
> index 9c2ef42522..92243c2edd 100755
> --- a/tests/qemu-iotests/060
> +++ b/tests/qemu-iotests/060
> @@ -158,7 +158,7 @@ $QEMU_IO -c 'write 0k 64k' "$BACKING_IMG" | 
> _filter_qemu_io
>  # compat=0.10 is required in order to make the following discard actually
>  # unallocate the sector rather than make it a zero sector - we want COW, 
> after
>  # all.
> -IMGOPTS='compat=0.10' _make_test_img -b "$BACKING_IMG" 1G
> +_make_test_img -o 'compat=0.10' -b "$BACKING_IMG" 1G
>  # Write two clusters, the second one enforces creation of an L2 table after
>  # the first data cluster.
>  $QEMU_IO -c 'write 0k 64k' -c 'write 512M 64k' "$TEST_IMG" | _filter_qemu_io
> @@ -398,7 +398,7 @@ echo
>  echo "=== Discarding a non-covered in-bounds refblock ==="
>  echo
>  
> -IMGOPTS='refcount_bits=1' _make_test_img 64M
> +_make_test_img -o 'refcount_bits=1' 64M
>  
>  # Pretend there's a refblock somewhere where there is no refblock to
>  # cover it (but the covering refblock has a valid index in the
> @@ -422,7 +422,7 @@ echo
>  echo "=== Discarding a refblock covered by an unaligned refblock ==="
>  echo
>  
> -IMGOPTS='refcount_bits=1' _make_test_img 64M
> +_make_test_img -o 'refcount_bits=1' 64M
>  
>  # Same as above
>  poke_file "$TEST_IMG" "$(($rt_offset+8))" "\x00\x00\x00\x10\x00\x00\x00\x00"
Looks good.


> diff --git a/tests/qemu-iotests/061 b/tests/qemu-iotests/061
> index 4eac5b83bd..0480be0141 100755
> --- a/tests/qemu-iotests/061
> +++ b/tests/qemu-iotests/061
> @@ -41,11 +41,14 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>  _supported_fmt qcow2
>  _supported_proto file
>  _supported_os Linux
> +# Conversion between different compat versions can only really work
> +# with refcount_bits=16
100 agree, however in the future this test maybe should be split
to one test that converts between versions and one that
converts between same version. No need to do that now of course.

> +_unsupported_imgopts 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
>  
>  echo
>  echo "=== Testing version downgrade with zero expansion ==="
>  echo
> -IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img 64M
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" 64M
>  $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $PYTHON qcow2.py "$TEST_IMG" dump-header
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
> @@ -56,7 +59,7 @@ _check_test_img
>  echo
>  echo "=== Testing version downgrade with zero expansion and 4K cache entries 
> ==="
>  echo
> -IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img 64M
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" 64M
>  $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c "write -z 32M 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c map "$TEST_IMG" | _filter_qemu_io
> @@ -72,7 +75,7 @@ _check_test_img
>  echo
>  echo "=== Testing dirty version downgrade ==="
>  echo
> -IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img 64M
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" 64M
>  _NO_VALGRIND \
>  $QEMU_IO -c "write -P 0x2a 0 128k" -c flush \
>           -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 | _filter_qemu_io
> @@ -85,7 +88,7 @@ _check_test_img
>  echo
>  echo "=== Testing version downgrade with unknown compat/autoclear flags ==="
>  echo
> -IMGOPTS="compat=1.1" _make_test_img 64M
> +_make_test_img -o "compat=1.1" 64M
>  $PYTHON qcow2.py "$TEST_IMG" set-feature-bit compatible 42
>  $PYTHON qcow2.py "$TEST_IMG" set-feature-bit autoclear 42
>  $PYTHON qcow2.py "$TEST_IMG" dump-header
> @@ -96,7 +99,7 @@ _check_test_img
>  echo
>  echo "=== Testing version upgrade and resize ==="
>  echo
> -IMGOPTS="compat=0.10" _make_test_img 64M
> +_make_test_img -o "compat=0.10" 64M
>  $QEMU_IO -c "write -P 0x2a 42M 64k" "$TEST_IMG" | _filter_qemu_io
>  $PYTHON qcow2.py "$TEST_IMG" dump-header
>  $QEMU_IMG amend -o "compat=1.1,lazy_refcounts=on,size=128M" "$TEST_IMG"
> @@ -107,7 +110,7 @@ _check_test_img
>  echo
>  echo "=== Testing dirty lazy_refcounts=off ==="
>  echo
> -IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img 64M
> +_make_test_img -o "compat=1.1,lazy_refcounts=on" 64M
>  _NO_VALGRIND \
>  $QEMU_IO -c "write -P 0x2a 0 128k" -c flush \
>           -c "sigraise $(kill -l KILL)" "$TEST_IMG" 2>&1 | _filter_qemu_io
> @@ -120,8 +123,8 @@ _check_test_img
>  echo
>  echo "=== Testing backing file ==="
>  echo
> -IMGOPTS="compat=1.1" _make_test_img 64M
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 64M
> +_make_test_img -o "compat=1.1" 64M
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG.base" | _filter_qemu_io
>  $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG amend -o "backing_file=$TEST_IMG.base,backing_fmt=qcow2" 
> "$TEST_IMG"
> @@ -131,7 +134,7 @@ _check_test_img
>  echo
>  echo "=== Testing invalid configurations ==="
>  echo
> -IMGOPTS="compat=0.10" _make_test_img 64M
> +_make_test_img -o "compat=0.10" 64M
>  $QEMU_IMG amend -o "lazy_refcounts=on" "$TEST_IMG"
>  $QEMU_IMG amend -o "compat=1.1" "$TEST_IMG" # actually valid
>  $QEMU_IMG amend -o "compat=0.10,lazy_refcounts=on" "$TEST_IMG"
> @@ -144,7 +147,7 @@ $QEMU_IMG amend -o "preallocation=on" "$TEST_IMG"
>  echo
>  echo "=== Testing correct handling of unset value ==="
>  echo
> -IMGOPTS="compat=1.1,cluster_size=1k" _make_test_img 64M
> +_make_test_img -o "compat=1.1,cluster_size=1k" 64M
>  echo "Should work:"
>  $QEMU_IMG amend -o "lazy_refcounts=on" "$TEST_IMG"
>  echo "Should not work:" # Just to know which of these tests actually fails
> @@ -153,7 +156,7 @@ $QEMU_IMG amend -o "cluster_size=64k" "$TEST_IMG"
>  echo
>  echo "=== Testing zero expansion on inactive clusters ==="
>  echo
> -IMGOPTS="compat=1.1" _make_test_img 64M
> +_make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG snapshot -c foo "$TEST_IMG"
>  $QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG" | _filter_qemu_io
> @@ -167,7 +170,7 @@ $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | 
> _filter_qemu_io
>  echo
>  echo "=== Testing zero expansion on shared L2 table ==="
>  echo
> -IMGOPTS="compat=1.1" _make_test_img 64M
> +_make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG snapshot -c foo "$TEST_IMG"
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
> @@ -180,9 +183,9 @@ $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | 
> _filter_qemu_io
>  echo
>  echo "=== Testing zero expansion on backed image ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 64M
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG.base" | _filter_qemu_io
> -IMGOPTS="compat=1.1" _make_test_img -b "$TEST_IMG.base" 64M
> +_make_test_img -o "compat=1.1" -b "$TEST_IMG.base" 64M
>  $QEMU_IO -c "read -P 0x2a 0 128k" -c "write -z 0 64k" "$TEST_IMG" | 
> _filter_qemu_io
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
>  _check_test_img
> @@ -191,9 +194,9 @@ $QEMU_IO -c "read -P 0 0 64k" -c "read -P 0x2a 64k 64k" 
> "$TEST_IMG" | _filter_qe
>  echo
>  echo "=== Testing zero expansion on backed inactive clusters ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 64M
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG.base" | _filter_qemu_io
> -IMGOPTS="compat=1.1" _make_test_img -b "$TEST_IMG.base" 64M
> +_make_test_img -o "compat=1.1" -b "$TEST_IMG.base" 64M
>  $QEMU_IO -c "write -z 0 64k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG snapshot -c foo "$TEST_IMG"
>  $QEMU_IO -c "write -P 0x42 0 128k" "$TEST_IMG" | _filter_qemu_io
> @@ -207,9 +210,9 @@ $QEMU_IO -c "read -P 0 0 64k" -c "read -P 0x2a 64k 64k" 
> "$TEST_IMG" | _filter_qe
>  echo
>  echo "=== Testing zero expansion on backed image with shared L2 table ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 64M
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -P 0x2a 0 128k" "$TEST_IMG.base" | _filter_qemu_io
> -IMGOPTS="compat=1.1" _make_test_img -b "$TEST_IMG.base" 64M
> +_make_test_img -o "compat=1.1" -b "$TEST_IMG.base" 64M
>  $QEMU_IO -c "write -z 0 128k" "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IMG snapshot -c foo "$TEST_IMG"
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
> @@ -222,7 +225,7 @@ $QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | 
> _filter_qemu_io
>  echo
>  echo "=== Testing preallocated zero expansion on full image ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG" _make_test_img 64M
> +TEST_IMG="$TEST_IMG" _make_test_img -o "compat=1.1" 64M
>  $QEMU_IO -c "write -P 0x2a 0 64M" "$TEST_IMG" -c "write -z 0 64M" | 
> _filter_qemu_io
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
>  _check_test_img
> @@ -231,8 +234,8 @@ $QEMU_IO -c "read -P 0 0 64M" "$TEST_IMG" | 
> _filter_qemu_io
>  echo
>  echo "=== Testing progress report without snapshot ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 4G
> -IMGOPTS="compat=1.1" _make_test_img -b "$TEST_IMG.base" 4G
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 4G
> +_make_test_img -o "compat=1.1" -b "$TEST_IMG.base" 4G
>  $QEMU_IO -c "write -z 0  64k" \
>           -c "write -z 1G 64k" \
>           -c "write -z 2G 64k" \
> @@ -243,8 +246,8 @@ _check_test_img
>  echo
>  echo "=== Testing progress report with snapshot ==="
>  echo
> -IMGOPTS="compat=1.1" TEST_IMG="$TEST_IMG.base" _make_test_img 4G
> -IMGOPTS="compat=1.1" _make_test_img -b "$TEST_IMG.base" 4G
> +TEST_IMG="$TEST_IMG.base" _make_test_img -o "compat=1.1" 4G
> +_make_test_img -o "compat=1.1" -b "$TEST_IMG.base" 4G
>  $QEMU_IO -c "write -z 0  64k" \
>           -c "write -z 1G 64k" \
>           -c "write -z 2G 64k" \
> @@ -256,7 +259,7 @@ _check_test_img
>  echo
>  echo "=== Testing version downgrade with external data file ==="
>  echo
> -IMGOPTS="compat=1.1,data_file=$TEST_IMG.data" _make_test_img 64M
> +_make_test_img -o "compat=1.1,data_file=$TEST_IMG.data" 64M
>  $QEMU_IMG amend -o "compat=0.10" "$TEST_IMG"
>  _img_info --format-specific
>  _check_test_img
> @@ -264,11 +267,11 @@ _check_test_img
>  echo
>  echo "=== Try changing the external data file ==="
>  echo
> -IMGOPTS="compat=1.1" _make_test_img 64M
> +_make_test_img -o "compat=1.1" 64M
>  $QEMU_IMG amend -o "data_file=foo" "$TEST_IMG"
>  
>  echo
> -IMGOPTS="compat=1.1,data_file=$TEST_IMG.data" _make_test_img 64M
> +_make_test_img -o "compat=1.1,data_file=$TEST_IMG.data" 64M
>  $QEMU_IMG amend -o "data_file=foo" "$TEST_IMG"
>  _img_info --format-specific
>  TEST_IMG="data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" 
> _img_info --format-specific --image-opts
> @@ -281,7 +284,7 @@ 
> TEST_IMG="data-file.filename=$TEST_IMG.data,file.filename=$TEST_IMG" 
> _img_info -
>  echo
>  echo "=== Clearing and setting data-file-raw ==="
>  echo
> -IMGOPTS="compat=1.1,data_file=$TEST_IMG.data,data_file_raw=on" 
> _make_test_img 64M
> +_make_test_img -o "compat=1.1,data_file=$TEST_IMG.data,data_file_raw=on" 64M
>  $QEMU_IMG amend -o "data_file_raw=on" "$TEST_IMG"
>  _img_info --format-specific
>  _check_test_img
> 
Looks good.


> diff --git a/tests/qemu-iotests/079 b/tests/qemu-iotests/079
> index 81f0c21f53..162355b29a 100755
> --- a/tests/qemu-iotests/079
> +++ b/tests/qemu-iotests/079
> @@ -44,8 +44,7 @@ echo
>  cluster_sizes="16384 32768 65536 131072 262144 524288 1048576 2097152 
> 4194304"
>  
>  for s in $cluster_sizes; do
> -    IMGOPTS=$(_optstr_add "$IMGOPTS" 
> "preallocation=metadata,cluster_size=$s") \
> -        _make_test_img 4G
> +    _make_test_img -o "preallocation=metadata,cluster_size=$s" 4G
>  done
>  
>  # success, all done
Looks good.


> diff --git a/tests/qemu-iotests/106 b/tests/qemu-iotests/106
> index ac47eaa0f5..b5d1ec4078 100755
> --- a/tests/qemu-iotests/106
> +++ b/tests/qemu-iotests/106
> @@ -51,7 +51,7 @@ for create_mode in off falloc full; do
>          echo
>          echo "--- create_mode=$create_mode growth_mode=$growth_mode ---"
>  
> -        IMGOPTS="preallocation=$create_mode" _make_test_img ${CREATION_SIZE}K
> +        _make_test_img -o "preallocation=$create_mode" ${CREATION_SIZE}K
>          $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode 
> "$TEST_IMG" +${GROWTH_SIZE}K
>  
>          expected_size=0
Looks good as well.

> diff --git a/tests/qemu-iotests/108 b/tests/qemu-iotests/108
> index 9c08172237..b0a6ae597b 100755
> --- a/tests/qemu-iotests/108
> +++ b/tests/qemu-iotests/108
> @@ -65,7 +65,7 @@ echo
>  echo '=== Repairing unreferenced data cluster in new refblock area ==='
>  echo
>  
> -IMGOPTS='cluster_size=512' _make_test_img 64M
> +_make_test_img -o 'cluster_size=512' 64M
>  # Allocate the first 128 kB in the image (first refblock)
>  $QEMU_IO -c 'write 0 0x1b200' "$TEST_IMG" | _filter_qemu_io
>  # should be 131072 == 0x20000
> 
Looks good.


> diff --git a/tests/qemu-iotests/112 b/tests/qemu-iotests/112
> index 706c10b600..6850225939 100755
> --- a/tests/qemu-iotests/112
> +++ b/tests/qemu-iotests/112
> @@ -53,20 +53,20 @@ echo '=== refcount_bits limits ==='
>  echo
>  
>  # Must be positive (non-zero)
> -IMGOPTS="$IMGOPTS,refcount_bits=0" _make_test_img 64M
> +_make_test_img -o "refcount_bits=0" 64M
>  # Must be positive (non-negative)
> -IMGOPTS="$IMGOPTS,refcount_bits=-1" _make_test_img 64M
> +_make_test_img -o "refcount_bits=-1" 64M
>  # May not exceed 64
> -IMGOPTS="$IMGOPTS,refcount_bits=128" _make_test_img 64M
> +_make_test_img -o "refcount_bits=128" 64M
>  # Must be a power of two
> -IMGOPTS="$IMGOPTS,refcount_bits=42" _make_test_img 64M
> +_make_test_img -o "refcount_bits=42" 64M
>  
>  # 1 is the minimum
> -IMGOPTS="$IMGOPTS,refcount_bits=1" _make_test_img 64M
> +_make_test_img -o "refcount_bits=1" 64M
>  print_refcount_bits
>  
>  # 64 is the maximum
> -IMGOPTS="$IMGOPTS,refcount_bits=64" _make_test_img 64M
> +_make_test_img -o "refcount_bits=64" 64M
>  print_refcount_bits
>  
>  # 16 is the default
> @@ -78,19 +78,19 @@ echo '=== refcount_bits and compat=0.10 ==='
>  echo
>  
>  # Should work
> -IMGOPTS="$IMGOPTS,compat=0.10,refcount_bits=16" _make_test_img 64M
> +_make_test_img -o "compat=0.10,refcount_bits=16" 64M
>  print_refcount_bits
>  
>  # Should not work
> -IMGOPTS="$IMGOPTS,compat=0.10,refcount_bits=1" _make_test_img 64M
> -IMGOPTS="$IMGOPTS,compat=0.10,refcount_bits=64" _make_test_img 64M
> +_make_test_img -o "compat=0.10,refcount_bits=1" 64M
> +_make_test_img -o "compat=0.10,refcount_bits=64" 64M
>  
>  
>  echo
>  echo '=== Snapshot limit on refcount_bits=1 ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=1" _make_test_img 64M
> +_make_test_img -o "refcount_bits=1" 64M
>  print_refcount_bits
>  
>  $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
> @@ -106,7 +106,7 @@ echo
>  echo '=== Snapshot limit on refcount_bits=2 ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=2" _make_test_img 64M
> +_make_test_img -o "refcount_bits=2" 64M
>  print_refcount_bits
>  
>  $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
> @@ -124,7 +124,7 @@ echo
>  echo '=== Compressed clusters with refcount_bits=1 ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=1" _make_test_img 64M
> +_make_test_img -o "refcount_bits=1" 64M
>  print_refcount_bits
>  
>  # Both should fit into a single host cluster; instead of failing to increase 
> the
> @@ -140,7 +140,7 @@ echo
>  echo '=== MSb set in 64 bit refcount ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=64" _make_test_img 64M
> +_make_test_img -o "refcount_bits=64" 64M
>  print_refcount_bits
>  
>  $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
> @@ -158,7 +158,7 @@ echo
>  echo '=== Snapshot on maximum 64 bit refcount value ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=64" _make_test_img 64M
> +_make_test_img -o "refcount_bits=64" 64M
>  print_refcount_bits
>  
>  $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
> @@ -239,7 +239,7 @@ echo
>  echo '=== Testing too many references for check ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=1" _make_test_img 64M
> +_make_test_img -o "refcount_bits=1" 64M
>  print_refcount_bits
>  
>  # This cluster should be created at 0x50000
> @@ -262,7 +262,7 @@ echo
>  echo '=== Multiple walks necessary during amend ==='
>  echo
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=1,cluster_size=512" _make_test_img 64k
> +_make_test_img -o "refcount_bits=1,cluster_size=512" 64k
>  
>  # Cluster 0 is the image header, clusters 1 to 4 are used by the L1 table, a
>  # single L2 table, the reftable and a single refblock. This creates 58 data
> 
Looks good.


> diff --git a/tests/qemu-iotests/115 b/tests/qemu-iotests/115
> index 9ed3cb6a83..d254b18342 100755
> --- a/tests/qemu-iotests/115
> +++ b/tests/qemu-iotests/115
> @@ -64,8 +64,7 @@ echo
>  # least 256 MB. We can achieve that by using preallocation=metadata for an 
> image
>  # which has a guest disk size of 256 MB.
>  
> -IMGOPTS="$IMGOPTS,refcount_bits=64,cluster_size=512,preallocation=metadata" \
> -    _make_test_img 256M
> +_make_test_img -o "refcount_bits=64,cluster_size=512,preallocation=metadata" 
> 256M
>  
>  # We know for sure that the L1 and refcount tables do not overlap with any 
> other
>  # structure because the metadata overlap checks would have caught that case.
Looks good.


> diff --git a/tests/qemu-iotests/121 b/tests/qemu-iotests/121
> index 90a0424edb..10db813d94 100755
> --- a/tests/qemu-iotests/121
> +++ b/tests/qemu-iotests/121
> @@ -50,7 +50,7 @@ echo
>  # Preallocation speeds up the write operation, but preallocating everything 
> will
>  # destroy the purpose of the write; so preallocate one KB less than what 
> would
>  # cause a reftable growth...
> -IMGOPTS='preallocation=metadata,cluster_size=1k' _make_test_img 64512K
> +_make_test_img -o 'preallocation=metadata,cluster_size=1k' 64512K
>  # ...and make the image the desired size afterwards.
>  $QEMU_IMG resize "$TEST_IMG" 65M
>  
> @@ -73,7 +73,7 @@ echo
>  echo '--- Test 2 ---'
>  echo
>  
> -IMGOPTS='preallocation=metadata,cluster_size=1k' _make_test_img 64513K
> +_make_test_img -o 'preallocation=metadata,cluster_size=1k' 64513K
>  # This results in an L1 table growth which in turn results in some clusters 
> at
>  # the start of the image becoming free
>  $QEMU_IMG resize "$TEST_IMG" 65M
> @@ -96,7 +96,7 @@ echo
>  echo '=== Allocating a new refcount block must not leave holes in the image 
> ==='
>  echo
>  
> -IMGOPTS='cluster_size=512,refcount_bits=16' _make_test_img 1M
> +_make_test_img -o 'cluster_size=512,refcount_bits=16' 1M
>  
>  # This results in an image with 256 used clusters: the qcow2 header,
>  # the refcount table, one refcount block, the L1 table, four L2 tables
> 
Looks good.


> diff --git a/tests/qemu-iotests/125 b/tests/qemu-iotests/125
> index 4e31aa4e5f..d510984045 100755
> --- a/tests/qemu-iotests/125
> +++ b/tests/qemu-iotests/125
> @@ -114,7 +114,7 @@ for GROWTH_SIZE in 16 48 80; do
>          for growth_mode in off metadata falloc full; do
>              echo "--- cluster_size=$cluster_size growth_size=$GROWTH_SIZE 
> create_mode=$create_mode growth_mode=$growth_mode ---"
>  
> -            IMGOPTS="preallocation=$create_mode,cluster_size=$cluster_size" 
> _make_test_img ${CREATION_SIZE}
> +            _make_test_img -o 
> "preallocation=$create_mode,cluster_size=$cluster_size" ${CREATION_SIZE}
>              $QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode 
> "$TEST_IMG" +${GROWTH_SIZE}K
>  
>              host_size_0=$(get_image_size_on_host)
> diff --git a/tests/qemu-iotests/137 b/tests/qemu-iotests/137
> index 089821da0c..6cf2997577 100755
> --- a/tests/qemu-iotests/137
> +++ b/tests/qemu-iotests/137
> @@ -117,7 +117,7 @@ $QEMU_IO \
>      -c "reopen -o cache-clean-interval=-1" \
>      "$TEST_IMG" | _filter_qemu_io
>  
> -IMGOPTS="cluster_size=256k" _make_test_img 32P
> +_make_test_img -o "cluster_size=256k" 32P
>  $QEMU_IO \
>      -c "reopen -o l2-cache-entry-size=512,l2-cache-size=1T" \
>      "$TEST_IMG" | _filter_qemu_io
> 
Looks good.

> diff --git a/tests/qemu-iotests/138 b/tests/qemu-iotests/138
> index 6a731370db..66ae9d5e78 100755
> --- a/tests/qemu-iotests/138
> +++ b/tests/qemu-iotests/138
> @@ -45,8 +45,7 @@ echo
>  echo '=== Check on an image with a multiple of 2^32 clusters ==='
>  echo
>  
> -IMGOPTS=$(_optstr_add "$IMGOPTS" "cluster_size=512") \
> -    _make_test_img 512
> +_make_test_img -o "cluster_size=512" 512
>  
>  # Allocate L2 table
>  $QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
> 
Looks good.

> diff --git a/tests/qemu-iotests/175 b/tests/qemu-iotests/175
> index 55db2803ed..020ed8e61f 100755
> --- a/tests/qemu-iotests/175
> +++ b/tests/qemu-iotests/175
> @@ -95,7 +95,7 @@ stat -c "size=%s, blocks=%b" $TEST_IMG | _filter_blocks 
> $extra_blocks $min_block
>  for mode in off full falloc; do
>      echo
>      echo "== creating image with preallocation $mode =="
> -    IMGOPTS=preallocation=$mode _make_test_img $size | _filter_imgfmt
> +    _make_test_img -o preallocation=$mode $size | _filter_imgfmt
>      stat -c "size=%s, blocks=%b" $TEST_IMG | _filter_blocks $extra_blocks 
> $min_blocks $size
>  done
>  
> 
Looks good.

> diff --git a/tests/qemu-iotests/190 b/tests/qemu-iotests/190
> index eb766ad09f..5890ff9cfc 100755
> --- a/tests/qemu-iotests/190
> +++ b/tests/qemu-iotests/190
> @@ -45,7 +45,7 @@ _supported_proto file
>  echo "== Huge file =="
>  echo
>  
> -IMGOPTS='cluster_size=2M' _make_test_img 2T
> +_make_test_img -o 'cluster_size=2M' 2T
>  
>  $QEMU_IMG measure -O raw -f qcow2 "$TEST_IMG"
>  $QEMU_IMG measure -O qcow2 -o cluster_size=64k -f qcow2 "$TEST_IMG"
> 
Looks good.

> diff --git a/tests/qemu-iotests/191 b/tests/qemu-iotests/191
> index 528022e8d8..21c16a32cb 100755
> --- a/tests/qemu-iotests/191
> +++ b/tests/qemu-iotests/191
> @@ -51,8 +51,7 @@ echo === Preparing and starting VM ===
>  echo
>  
>  TEST_IMG="${TEST_IMG}.base" _make_test_img $size
> -IMGOPTS=$(_optstr_add "$IMGOPTS" "backing_fmt=$IMGFMT") \
> -    TEST_IMG="${TEST_IMG}.mid" _make_test_img -b "${TEST_IMG}.base"
> +TEST_IMG="${TEST_IMG}.mid" _make_test_img -o "backing_fmt=$IMGFMT" -b 
> "${TEST_IMG}.base"
>  _make_test_img -b "${TEST_IMG}.mid"
>  TEST_IMG="${TEST_IMG}.ovl2" _make_test_img -b "${TEST_IMG}.mid"
>  
> 
Looks good.

> diff --git a/tests/qemu-iotests/220 b/tests/qemu-iotests/220
> index 2d62c5dcac..3769f372cb 100755
> --- a/tests/qemu-iotests/220
> +++ b/tests/qemu-iotests/220
> @@ -37,6 +37,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>  _supported_fmt qcow2
>  _supported_proto file
>  _supported_os Linux
> +# To use a different refcount width but 16 bits we need compat=1.1
> +_unsupported_imgopts 'compat=0.10'
>  
>  echo "== Creating huge file =="
>  
> @@ -46,7 +48,7 @@ if ! truncate --size=513T "$TEST_IMG"; then
>      _notrun "file system on $TEST_DIR does not support large enough files"
>  fi
>  rm "$TEST_IMG"
> -IMGOPTS='cluster_size=2M,refcount_bits=1' _make_test_img 513T
> +_make_test_img -o 'cluster_size=2M,refcount_bits=1' 513T
>  
>  echo "== Populating refcounts =="
>  # We want an image with 256M refcounts * 2M clusters = 512T referenced.
> 
Looks good.


> diff --git a/tests/qemu-iotests/243 b/tests/qemu-iotests/243
> index e563761307..2b84b896db 100755
> --- a/tests/qemu-iotests/243
> +++ b/tests/qemu-iotests/243
> @@ -40,6 +40,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>  _supported_fmt qcow2
>  _supported_proto file
>  _supported_os Linux
> +# External data files do not work with compat=0.10
> +_unsupported_imgopts 'compat=0.10'
>  
>  for mode in off metadata falloc full; do
>  
> @@ -47,7 +49,7 @@ for mode in off metadata falloc full; do
>      echo "=== preallocation=$mode ==="
>      echo
>  
> -    IMGOPTS="preallocation=$mode" _make_test_img 64M
> +    _make_test_img -o "preallocation=$mode" 64M
>  
>      printf "File size: "
>      du -b $TEST_IMG | cut -f1
> @@ -64,7 +66,7 @@ for mode in off metadata falloc full; do
>      echo "=== External data file: preallocation=$mode ==="
>      echo
>  
> -    IMGOPTS="data_file=$TEST_IMG.data,preallocation=$mode" _make_test_img 64M
> +    _make_test_img -o "data_file=$TEST_IMG.data,preallocation=$mode" 64M
>  
>      echo -n "qcow2 file size: "
>      du -b $TEST_IMG | cut -f1
> 
Looks good.


> diff --git a/tests/qemu-iotests/244 b/tests/qemu-iotests/244
> index 13978f93d2..0375bc12d4 100755
> --- a/tests/qemu-iotests/244
> +++ b/tests/qemu-iotests/244
> @@ -41,13 +41,15 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
>  _supported_fmt qcow2
>  _supported_proto file
>  _supported_os Linux
> +# External data files do not work with compat=0.10
> +_unsupported_imgopts 'compat=0.10'
>  
>  echo
>  echo "=== Create and open image with external data file ==="
>  echo
>  
>  echo "With data file name in the image:"
> -IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
> +_make_test_img -o "data_file=$TEST_IMG.data" 64M
>  _check_test_img
>  
>  $QEMU_IO -c "open $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | 
> _filter_testdir
> @@ -104,7 +106,7 @@ echo
>  echo "=== Standalone image with external data file (efficient) ==="
>  echo
>  
> -IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
> +_make_test_img -o "data_file=$TEST_IMG.data" 64M
>  
>  echo -n "qcow2 file size before I/O: "
>  du -b $TEST_IMG | cut -f1
> @@ -154,7 +156,7 @@ echo
>  echo "=== Standalone image with external data file (valid raw) ==="
>  echo
>  
> -IMGOPTS="data_file=$TEST_IMG.data,data_file_raw=on" _make_test_img 64M
> +_make_test_img -o "data_file=$TEST_IMG.data,data_file_raw=on" 64M
>  
>  echo -n "qcow2 file size before I/O: "
>  du -b $TEST_IMG | cut -f1
> @@ -187,7 +189,7 @@ echo
>  echo "=== bdrv_co_block_status test for file and offset=0 ==="
>  echo
>  
> -IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M
> +_make_test_img -o "data_file=$TEST_IMG.data" 64M
>  
>  $QEMU_IO -c 'write -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
>  $QEMU_IO -c 'read -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
> 
Looks good.

> diff --git a/tests/qemu-iotests/250 b/tests/qemu-iotests/250
> index c9c0a84a5a..670cf19076 100755
> --- a/tests/qemu-iotests/250
> +++ b/tests/qemu-iotests/250
> @@ -55,9 +55,8 @@ disk_usage()
>  }
>  
>  size=2100M
> -IMGOPTS="cluster_size=1M,preallocation=metadata"
>  
> -_make_test_img $size
> +_make_test_img -o "cluster_size=1M,preallocation=metadata" $size
>  $QEMU_IO -c 'discard 0 10M' -c 'discard 2090M 10M' \
>           -c 'write 2090M 10M' -c 'write 0 10M' "$TEST_IMG" | _filter_qemu_io
>  
> 
Looks good.


> diff --git a/tests/qemu-iotests/265 b/tests/qemu-iotests/265
> index dce6f77be3..00f2ec769e 100755
> --- a/tests/qemu-iotests/265
> +++ b/tests/qemu-iotests/265
> @@ -41,7 +41,7 @@ _supported_os Linux
>  echo '--- Writing to the image ---'
>  
>  # Reduce cluster size so we get more and quicker I/O
> -IMGOPTS='cluster_size=4096' _make_test_img 1M
> +_make_test_img -o 'cluster_size=4096' 1M
>  (for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \
>       echo "aio_write -P 42 $((kb + 1))k 2k"; \
>   done) \
Looks good as well.



To make review of this patch a bit less boring, I went over all
the tests to understand more or less what each test does.
I hope that I didn't miss anything.

Reviewed-by: Maxim Levitsky <address@hidden>

Best regards,
        Maxim Levitsky






reply via email to

[Prev in Thread] Current Thread [Next in Thread]