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Block layer patches

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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Tue 13 Feb 2018 17:03:11 GMT
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (55 commits)
  iotests: Add l2-cache-entry-size to iotest 137
  iotests: Test downgrading an image using a small L2 slice size
  iotests: Test valid values of l2-cache-entry-size
  qcow2: Allow configuring the L2 slice size
  qcow2: Rename l2_table in count_cow_clusters()
  qcow2: Rename l2_table in count_contiguous_clusters_unallocated()
  qcow2: Rename l2_table in count_contiguous_clusters()
  qcow2: Rename l2_table in qcow2_alloc_compressed_cluster_offset()
  qcow2: Update qcow2_truncate() to support L2 slices
  qcow2: Update expand_zero_clusters_in_l1() to support L2 slices
  qcow2: Prepare expand_zero_clusters_in_l1() for adding L2 slice support
  qcow2: Read refcount before L2 table in expand_zero_clusters_in_l1()
  qcow2: Update qcow2_update_snapshot_refcount() to support L2 slices
  qcow2: Prepare qcow2_update_snapshot_refcount() for adding L2 slice support
  qcow2: Update zero_single_l2() to support L2 slices
  qcow2: Update discard_single_l2() to support L2 slices
  qcow2: Update handle_alloc() to support L2 slices
  qcow2: Update handle_copied() to support L2 slices
  qcow2: Update qcow2_alloc_cluster_link_l2() to support L2 slices
  qcow2: Update qcow2_get_cluster_offset() to support L2 slices
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-02-13 19:57:46 +00:00
commit 685a4eaf6d
27 changed files with 824 additions and 565 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tests/qemu-iotests/059.out
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@ -2358,5 +2358,5 @@ Offset Length Mapped to File
0x140000000 0x10000 0x50000 TEST_DIR/t-s003.vmdk
=== Testing afl image with a very large capacity ===
qemu-img: Could not open 'TEST_DIR/afl9.IMGFMT': Could not open 'TEST_DIR/afl9.IMGFMT': Invalid argument
qemu-img: Can't get image size 'TEST_DIR/afl9.IMGFMT': File too large
*** done

16
tests/qemu-iotests/061
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@ -53,6 +53,22 @@ $PYTHON qcow2.py "$TEST_IMG" dump-header
$QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io
_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
$QEMU_IO -c "write -z 0 128k" "$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
$PYTHON qcow2.py "$TEST_IMG" dump-header
$QEMU_IMG amend -o "compat=0.10" --image-opts \
driver=qcow2,file.filename=$TEST_IMG,l2-cache-entry-size=4096
$PYTHON qcow2.py "$TEST_IMG" dump-header
$QEMU_IO -c "read -P 0 0 128k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c "read -P 0 32M 128k" "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c map "$TEST_IMG" | _filter_qemu_io
_check_test_img
echo
echo "=== Testing dirty version downgrade ==="
echo

61
tests/qemu-iotests/061.out
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@ -52,6 +52,67 @@ read 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
No errors were found on the image.
=== Testing version downgrade with zero expansion and 4K cache entries ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 131072/131072 bytes at offset 33554432
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
128 KiB (0x20000) bytes allocated at offset 0 bytes (0x0)
31.875 MiB (0x1fe0000) bytes not allocated at offset 128 KiB (0x20000)
128 KiB (0x20000) bytes allocated at offset 32 MiB (0x2000000)
31.875 MiB (0x1fe0000) bytes not allocated at offset 32.125 MiB (0x2020000)
magic 0x514649fb
version 3
backing_file_offset 0x0
backing_file_size 0x0
cluster_bits 16
size 67108864
crypt_method 0
l1_size 1
l1_table_offset 0x30000
refcount_table_offset 0x10000
refcount_table_clusters 1
nb_snapshots 0
snapshot_offset 0x0
incompatible_features 0x0
compatible_features 0x1
autoclear_features 0x0
refcount_order 4
header_length 104
Header extension:
magic 0x6803f857
length 144
data <binary>
magic 0x514649fb
version 2
backing_file_offset 0x0
backing_file_size 0x0
cluster_bits 16
size 67108864
crypt_method 0
l1_size 1
l1_table_offset 0x30000
refcount_table_offset 0x10000
refcount_table_clusters 1
nb_snapshots 0
snapshot_offset 0x0
incompatible_features 0x0
compatible_features 0x0
autoclear_features 0x0
refcount_order 4
header_length 72
read 131072/131072 bytes at offset 0
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 131072/131072 bytes at offset 33554432
128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
64 MiB (0x4000000) bytes not allocated at offset 0 bytes (0x0)
No errors were found on the image.
=== Testing dirty version downgrade ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

17
tests/qemu-iotests/103
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@ -66,6 +66,14 @@ $QEMU_IO -c "open -o cache-size=1M,refcount-cache-size=2M $TEST_IMG" 2>&1 \
$QEMU_IO -c "open -o cache-size=0,l2-cache-size=0,refcount-cache-size=0 $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
# Invalid cache entry sizes
$QEMU_IO -c "open -o l2-cache-entry-size=256 $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
$QEMU_IO -c "open -o l2-cache-entry-size=4242 $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
$QEMU_IO -c "open -o l2-cache-entry-size=128k $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
echo
echo '=== Testing valid option combinations ==='
echo
@ -94,6 +102,15 @@ $QEMU_IO -c "open -o l2-cache-size=1M,refcount-cache-size=0.25M $TEST_IMG" \
-c 'read -P 42 0 64k' \
| _filter_qemu_io
# Valid cache entry sizes
$QEMU_IO -c "open -o l2-cache-entry-size=512 $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
$QEMU_IO -c "open -o l2-cache-entry-size=16k $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
$QEMU_IO -c "open -o l2-cache-entry-size=64k $TEST_IMG" \
2>&1 | _filter_testdir | _filter_imgfmt
echo
echo '=== Testing minimal L2 cache and COW ==='
echo

3
tests/qemu-iotests/103.out
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@ -9,6 +9,9 @@ can't open device TEST_DIR/t.IMGFMT: cache-size, l2-cache-size and refcount-cach
can't open device TEST_DIR/t.IMGFMT: l2-cache-size may not exceed cache-size
can't open device TEST_DIR/t.IMGFMT: refcount-cache-size may not exceed cache-size
can't open device TEST_DIR/t.IMGFMT: cache-size, l2-cache-size and refcount-cache-size may not be set the same time
can't open device TEST_DIR/t.IMGFMT: L2 cache entry size must be a power of two between 512 and the cluster size (65536)
can't open device TEST_DIR/t.IMGFMT: L2 cache entry size must be a power of two between 512 and the cluster size (65536)
can't open device TEST_DIR/t.IMGFMT: L2 cache entry size must be a power of two between 512 and the cluster size (65536)
=== Testing valid option combinations ===

5
tests/qemu-iotests/137
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@ -83,6 +83,9 @@ $QEMU_IO \
-c "reopen -o overlap-check.inactive-l2=off" \
-c "reopen -o cache-size=1M" \
-c "reopen -o l2-cache-size=512k" \
-c "reopen -o l2-cache-entry-size=512" \
-c "reopen -o l2-cache-entry-size=4k" \
-c "reopen -o l2-cache-entry-size=64k" \
-c "reopen -o refcount-cache-size=128k" \
-c "reopen -o cache-clean-interval=5" \
-c "reopen -o cache-clean-interval=0" \
@ -107,6 +110,8 @@ $QEMU_IO \
-c "reopen -o cache-size=1M,l2-cache-size=2M" \
-c "reopen -o cache-size=1M,refcount-cache-size=2M" \
-c "reopen -o l2-cache-size=256T" \
-c "reopen -o l2-cache-entry-size=33k" \
-c "reopen -o l2-cache-entry-size=128k" \
-c "reopen -o refcount-cache-size=256T" \
-c "reopen -o overlap-check=constant,overlap-check.template=all" \
-c "reopen -o overlap-check=blubb" \

2
tests/qemu-iotests/137.out
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@ -20,6 +20,8 @@ cache-size, l2-cache-size and refcount-cache-size may not be set the same time
l2-cache-size may not exceed cache-size
refcount-cache-size may not exceed cache-size
L2 cache size too big
L2 cache entry size must be a power of two between 512 and the cluster size (65536)
L2 cache entry size must be a power of two between 512 and the cluster size (65536)
L2 cache size too big
Conflicting values for qcow2 options 'overlap-check' ('constant') and 'overlap-check.template' ('all')
Unsupported value 'blubb' for qcow2 option 'overlap-check'. Allowed are any of the following: none, constant, cached, all

14
tests/qemu-iotests/155
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@ -64,7 +64,7 @@ class BaseClass(iotests.QMPTestCase):
'file': {'driver': 'file',
'filename': source_img}}
self.vm.add_blockdev(self.qmp_to_opts(blockdev))
self.vm.add_device('floppy,id=qdev0,drive=source')
self.vm.add_device('virtio-blk,id=qdev0,drive=source')
self.vm.launch()
self.assertIntactSourceBackingChain()
@ -173,21 +173,24 @@ class MirrorBaseClass(BaseClass):
def testFull(self):
self.runMirror('full')
node = self.findBlockNode('target', 'qdev0')
node = self.findBlockNode('target',
'/machine/peripheral/qdev0/virtio-backend')
self.assertCorrectBackingImage(node, None)
self.assertIntactSourceBackingChain()
def testTop(self):
self.runMirror('top')
node = self.findBlockNode('target', 'qdev0')
node = self.findBlockNode('target',
'/machine/peripheral/qdev0/virtio-backend')
self.assertCorrectBackingImage(node, back2_img)
self.assertIntactSourceBackingChain()
def testNone(self):
self.runMirror('none')
node = self.findBlockNode('target', 'qdev0')
node = self.findBlockNode('target',
'/machine/peripheral/qdev0/virtio-backend')
self.assertCorrectBackingImage(node, source_img)
self.assertIntactSourceBackingChain()
@ -239,7 +242,8 @@ class TestCommit(BaseClass):
self.vm.event_wait('BLOCK_JOB_COMPLETED')
node = self.findBlockNode(None, 'qdev0')
node = self.findBlockNode(None,
'/machine/peripheral/qdev0/virtio-backend')
self.assert_qmp(node, 'image' + '/backing-image' * 0 + '/filename',
back1_img)
self.assert_qmp(node, 'image' + '/backing-image' * 1 + '/filename',

2
tests/qemu-iotests/165
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@ -64,7 +64,7 @@ class TestPersistentDirtyBitmap(iotests.QMPTestCase):
def qmpAddBitmap(self):
self.vm.qmp('block-dirty-bitmap-add', node='drive0',
name='bitmap0', persistent=True, autoload=True)
name='bitmap0', persistent=True)
def test_persistent(self):
self.vm = self.mkVm()

2
tests/qemu-iotests/176
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@ -95,7 +95,7 @@ case $reason in
"file": { "driver": "file", "filename": "$TEST_IMG" } } }
{ "execute": "block-dirty-bitmap-add",
"arguments": { "node": "drive0", "name": "bitmap0",
"persistent": true, "autoload": true } }
"persistent": true } }
{ "execute": "quit" }
EOF
;;

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tests/qemu-iotests/sample_images/afl9.vmdk.bz2
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