Merge remote-tracking branch 'remotes/hreitz-gitlab/tags/pull-block-2022-02-01' into staging

Block patches:
- Add support to the iotests to test qcow2's zstd compression mode
- Fix post-migration bl

Merge remote-tracking branch 'remotes/hreitz-gitlab/tags/pull-block-2022-02-01' into staging

Block patches:
- Add support to the iotests to test qcow2's zstd compression mode
- Fix post-migration block node permissions
- iotests fixes (051 and mirror-ready-cancel-error)
- Remove an outdated comment

# gpg: Signature made Tue 01 Feb 2022 13:34:54 GMT
# gpg: using RSA key CB62D7A0EE3829E45F004D34A1FA40D098019CDF
# gpg: issuer "hreitz@redhat.com"
# gpg: Good signature from "Hanna Reitz <hreitz@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: CB62 D7A0 EE38 29E4 5F00 4D34 A1FA 40D0 9801 9CDF

* remotes/hreitz-gitlab/tags/pull-block-2022-02-01: (24 commits)
block.h: remove outdated comment
iotests/migration-permissions: New test
block-backend: Retain permissions after migration
iotests: declare lack of support for compresion_type in IMGOPTS
iotest 214: explicit compression type
iotests 60: more accurate set dirty bit in qcow2 header
iotests: bash tests: filter compression type
iotest 39: use _qcow2_dump_header
iotests: massive use _qcow2_dump_header
iotests/common.rc: introduce _qcow2_dump_header helper
qcow2: simple case support for downgrading of qcow2 images with zstd
iotest 302: use img_info_log() helper
iotests.py: filter compression type out
iotests.py: filter out successful output of qemu-img create
iotest 065: explicit compression type
iotest 303: explicit compression type
iotests.py: rewrite default luks support in qemu_img
iotests: drop qemu_img_verbose() helper
iotests.py: qemu_img*("create"): support IMGOPTS='compression_type=zstd'
iotests: specify some unsupported_imgopts for python iotests
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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iotest 303: explicit compression type

The test prints qcow2 header fields which depends on chosen compression
type. So, let's be explicit in what compression type we want and
independent of IMGOPTS.

iotest 303: explicit compression type

The test prints qcow2 header fields which depends on chosen compression
type. So, let's be explicit in what compression type we want and
independent of IMGOPTS. Test both existing compression types.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20211223160144.1097696-8-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-08-26' into staging

Block patches:
- qcow2 subclusters (extended L2 entries)

# gpg: Signature made Wed 26 Aug 2020 08:37:04 BST
#

Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-08-26' into staging

Block patches:
- qcow2 subclusters (extended L2 entries)

# gpg: Signature made Wed 26 Aug 2020 08:37:04 BST
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2020-08-26: (34 commits)
iotests: Add tests for qcow2 images with extended L2 entries
qcow2: Assert that expand_zero_clusters_in_l1() does not support subclusters
qcow2: Allow preallocation and backing files if extended_l2 is set
qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit
qcow2: Add prealloc field to QCowL2Meta
qcow2: Add subcluster support to qcow2_measure()
qcow2: Add subcluster support to qcow2_co_pwrite_zeroes()
qcow2: Add subcluster support to handle_alloc_space()
qcow2: Clear the L2 bitmap when allocating a compressed cluster
qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2()
qcow2: Add subcluster support to check_refcounts_l2()
qcow2: Add subcluster support to discard_in_l2_slice()
qcow2: Add subcluster support to zero_in_l2_slice()
qcow2: Add subcluster support to qcow2_get_host_offset()
qcow2: Add subcluster support to calculate_l2_meta()
qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC
qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*
qcow2: Add cluster type parameter to qcow2_get_host_offset()
qcow2: Add qcow2_cluster_is_allocated()
qcow2: Add qcow2_get_subcluster_range_type()
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit

Now that the implementation of subclusters is complete we can finally
add the necessary options to create and read images with th

qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit

Now that the implementation of subclusters is complete we can finally
add the necessary options to create and read images with this feature,
which we call "extended L2 entries".

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <6476caaa73216bd05b7bb2d504a20415e1665176.1594396418.git.berto@igalia.com>
[mreitz: %s/5\.1/5.2/; fixed 302's and 303's reference output]
Signed-off-by: Max Reitz <mreitz@redhat.com>

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Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-08-21' into staging

bitmaps patches for 2020-08-21

- Andrey Shinkevich: Enhance qcow2.py for iotest inspection of qcow2 images
- M

Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-08-21' into staging

bitmaps patches for 2020-08-21

- Andrey Shinkevich: Enhance qcow2.py for iotest inspection of qcow2 images
- Max Reitz: Add block-bitmap-mapping migration parameter

# gpg: Signature made Fri 21 Aug 2020 15:05:07 BST
# gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-bitmaps-2020-08-21:
iotests: Test node/bitmap aliases during migration
iotests.py: Let wait_migration() return on failure
migration: Add block-bitmap-mapping parameter
iotests: dump QCOW2 header in JSON in #303
qcow2_format.py: support dumping metadata in JSON format
qcow2_format.py: collect fields to dump in JSON format
qcow2.py: Introduce '-j' key to dump in JSON format
qcow2_format.py: Dump bitmap table serialized entries
qcow2_format.py: pass cluster size to substructures
qcow2_format.py: Dump bitmap directory information
qcow2_format.py: dump bitmap flags in human readable way.
qcow2_format.py: change Qcow2BitmapExt initialization method
qcow2_format.py: make printable data an extension class member
iotests: add test for QCOW2 header dump

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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iotests: dump QCOW2 header in JSON in #303

Extend the test case #303 by dumping QCOW2 image metadata in JSON
format.

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by:

iotests: dump QCOW2 header in JSON in #303

Extend the test case #303 by dumping QCOW2 image metadata in JSON
format.

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1596742557-320265-12-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

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qcow2_format.py: Dump bitmap table serialized entries

Add bitmap table information to the QCOW2 metadata dump.

Bitmap name bitmap-1
...
Bitmap table type size off

qcow2_format.py: Dump bitmap table serialized entries

Add bitmap table information to the QCOW2 metadata dump.

Bitmap name bitmap-1
...
Bitmap table type size offset
0 serialized 65536 10092544
1 all-zeroes 0 0
2 all-zeroes 0 0

Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1596742557-320265-8-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

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qcow2_format.py: Dump bitmap directory information

Read and dump entries from the bitmap directory of QCOW2 image.

Header extension:
magic 0x23852875 (Bitmaps)
...
Bitmap name

qcow2_format.py: Dump bitmap directory information

Read and dump entries from the bitmap directory of QCOW2 image.

Header extension:
magic 0x23852875 (Bitmaps)
...
Bitmap name bitmap-1
bitmap_table_offset 0xf0000
bitmap_table_size 1
flags 0x2 (['auto'])
type 1
granularity_bits 16
name_size 8
extra_data_size 0

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1596742557-320265-6-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

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iotests: add test for QCOW2 header dump

The simple script creates a QCOW2 image and fills it with some data.
Two bitmaps are created as well. Then the script reads the image header
with extensions f

iotests: add test for QCOW2 header dump

The simple script creates a QCOW2 image and fills it with some data.
Two bitmaps are created as well. Then the script reads the image header
with extensions from the disk by running the script qcow2.py and dumps
the information to the output. Other entities, such as snapshots, may
be added to the test later.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1596742557-320265-2-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

show more ...