From: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
To: qemu-devel@nongnu.org, qemu-block@nongnu.org
Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com,
mreitz@redhat.com, andrey.shinkevich@virtuozzo.com,
den@openvz.org
Subject: [PATCH v7 0/3] qcow2: advanced compression options
Date: Wed, 13 Nov 2019 21:43:06 +0300 [thread overview]
Message-ID: <1573670589-229357-1-git-send-email-andrey.shinkevich@virtuozzo.com> (raw)
The compression filter driver is introduced as suggested by Max.
A sample usage of the filter can be found in the test #214.
Now, multiple clusters can be written compressed.
It is useful for the backup job.
v7:
01: The 'zip_' prefix for the compression filter functions replaced with
'compress_' one.
02: .bdrv_co_preadv/pwritev (without _part) removed from the filter.
03: .bdrv_refresh_limits amended.
04: .bdrv_get_info added.
05: In qapi/block-core.json, @compress: Since 5.0 was set.
Discussed in the email thread with the message ID
<1573488277-794975-1-git-send-email-andrey.shinkevich@virtuozzo.com>
Andrey Shinkevich (3):
block: introduce compress filter driver
qcow2: Allow writing compressed data of multiple clusters
tests/qemu-iotests: add case to write compressed data of multiple
clusters
block/Makefile.objs | 1 +
block/filter-compress.c | 201 +++++++++++++++++++++++++++++++++++++++++++++
block/qcow2.c | 102 +++++++++++++++++------
qapi/block-core.json | 10 ++-
tests/qemu-iotests/214 | 43 ++++++++++
tests/qemu-iotests/214.out | 14 ++++
6 files changed, 340 insertions(+), 31 deletions(-)
create mode 100644 block/filter-compress.c
--
1.8.3.1
next reply other threads:[~2019-11-13 18:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-13 18:43 Andrey Shinkevich [this message]
2019-11-13 18:43 ` [PATCH v7 1/3] block: introduce compress filter driver Andrey Shinkevich
2019-11-14 11:27 ` Max Reitz
2019-11-14 11:59 ` Vladimir Sementsov-Ogievskiy
2019-11-15 9:32 ` Max Reitz
2019-11-15 10:12 ` Andrey Shinkevich
2019-11-15 12:03 ` Max Reitz
2019-11-15 10:52 ` Vladimir Sementsov-Ogievskiy
2019-11-15 10:55 ` Vladimir Sementsov-Ogievskiy
2019-11-15 12:05 ` Max Reitz
2019-11-13 18:43 ` [PATCH v7 2/3] qcow2: Allow writing compressed data of multiple clusters Andrey Shinkevich
2019-11-13 18:43 ` [PATCH v7 3/3] tests/qemu-iotests: add case to write " Andrey Shinkevich
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