New enhancements for writing compressed data to QCOW2 image.

v4:
    The 'compression' support at the block generic layer has been
    accumulated in the separate patch 1/4. A little code refactoring
    was made.
v3:
    Instead of introducing multiple key options for many drivers, the
    'compression' option has been introduced at the block generic layer
    as suggested by Roman Kagan. Discussed on the email thread with ID
    <1570026166-748566-1-git-send-email-andrey.shinkevich@virtuozzo.com>

Andrey Shinkevich (4):
  block: support compressed write at generic layer
  qcow2: Allow writing compressed data of multiple clusters
  tests/qemu-iotests: add case to write compressed data of multiple
    clusters
  tests/qemu-iotests: add case for block-stream compress

 block.c                    |  20 ++++++++-
 block/io.c                 |  14 ++++--
 block/qcow2.c              | 106 +++++++++++++++++++++++++++++++++------------
 blockdev.c                 |   9 +++-
 include/block/block.h      |   1 +
 include/block/block_int.h  |   2 +
 qapi/block-core.json       |   6 ++-
 qemu-options.hx            |   6 ++-
 tests/qemu-iotests/030     |  51 +++++++++++++++++++++-
 tests/qemu-iotests/030.out |   4 +-
 tests/qemu-iotests/214     |  35 +++++++++++++++
 tests/qemu-iotests/214.out |  15 +++++++
 12 files changed, 230 insertions(+), 39 deletions(-)

-- 
1.8.3.1

Patchew URL: https://patchew.org/QEMU/1571243333-882302-1-git-send-email-andrey.shinkevich@virtuozzo.com/



Hi,

This series failed the docker-quick@centos7 build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#!/bin/bash
make docker-image-centos7 V=1 NETWORK=1
time make docker-test-quick@centos7 SHOW_ENV=1 J=14 NETWORK=1
=== TEST SCRIPT END ===

  CC      block/qed-table.o
  CC      block/qed-cluster.o
/tmp/qemu-test/src/block/qcow2.c: In function 'qcow2_co_pwritev_compressed_part':
/tmp/qemu-test/src/block/qcow2.c:4244:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     int ret;
         ^
cc1: all warnings being treated as errors
make: *** [block/qcow2.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 662, in <module>
---
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--label', 'com.qemu.instance.uuid=b109abacd8054efc992d66fa28ca7d8c', '-u', '1003', '--security-opt', 'seccomp=unconfined', '--rm', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=14', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew2/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-ge9ikvez/src/docker-src.2019-10-16-15.15.08.9832:/var/tmp/qemu:z,ro', 'qemu:centos7', '/var/tmp/qemu/run', 'test-quick']' returned non-zero exit status 2.
filter=--filter=label=com.qemu.instance.uuid=b109abacd8054efc992d66fa28ca7d8c
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-ge9ikvez/src'
make: *** [docker-run-test-quick@centos7] Error 2

real    2m4.543s
user    0m8.161s


The full log is available at
http://patchew.org/logs/1571243333-882302-1-git-send-email-andrey.shinkevich@virtuozzo.com/testing.docker-quick@centos7/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com

Patchew URL: https://patchew.org/QEMU/1571243333-882302-1-git-send-email-andrey.shinkevich@virtuozzo.com/



Hi,

This series failed the docker-mingw@fedora build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#! /bin/bash
export ARCH=x86_64
make docker-image-fedora V=1 NETWORK=1
time make docker-test-mingw@fedora J=14 NETWORK=1
=== TEST SCRIPT END ===

  CC      block/blkverify.o
  CC      block/blkreplay.o
/tmp/qemu-test/src/block/qcow2.c: In function 'qcow2_co_pwritev_compressed_part':
/tmp/qemu-test/src/block/qcow2.c:4244:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     int ret;
         ^~~
cc1: all warnings being treated as errors
make: *** [/tmp/qemu-test/src/rules.mak:69: block/qcow2.o] Error 1
make: *** Waiting for unfinished jobs....
  CC      block/parallels.o
Traceback (most recent call last):
---
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--label', 'com.qemu.instance.uuid=2e359c4b7b0f403ca14825a9c4b067a8', '-u', '1003', '--security-opt', 'seccomp=unconfined', '--rm', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=14', '-e', 'DEBUG=', '-e', 'SHOW_ENV=', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew2/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-hjz8elmo/src/docker-src.2019-10-16-15.17.37.16307:/var/tmp/qemu:z,ro', 'qemu:fedora', '/var/tmp/qemu/run', 'test-mingw']' returned non-zero exit status 2.
filter=--filter=label=com.qemu.instance.uuid=2e359c4b7b0f403ca14825a9c4b067a8
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-hjz8elmo/src'
make: *** [docker-run-test-mingw@fedora] Error 2

real    2m12.901s
user    0m7.708s


The full log is available at
http://patchew.org/logs/1571243333-882302-1-git-send-email-andrey.shinkevich@virtuozzo.com/testing.docker-mingw@fedora/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com