From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: Eric Blake <eblake@redhat.com>,
Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"qemu-block@nongnu.org" <qemu-block@nongnu.org>
Cc: "kwolf@redhat.com" <kwolf@redhat.com>,
Denis Lunev <den@virtuozzo.com>,
"armbru@redhat.com" <armbru@redhat.com>,
"mreitz@redhat.com" <mreitz@redhat.com>
Subject: Re: [PATCH v6 1/3] block: introduce compress filter driver
Date: Tue, 12 Nov 2019 08:57:42 +0000 [thread overview]
Message-ID: <7a06398f-508c-5ff4-1024-37ad30cf34e8@virtuozzo.com> (raw)
In-Reply-To: <78fde14e-b573-f7e0-d211-f066c3767b7d@redhat.com>
11.11.2019 23:47, Eric Blake wrote:
> On 11/11/19 10:04 AM, Andrey Shinkevich wrote:
>> Allow writing all the data compressed through the filter driver.
>> The written data will be aligned by the cluster size.
>> Based on the QEMU current implementation, that data can be written to
>> unallocated clusters only. May be used for a backup job.
>>
>> Suggested-by: Max Reitz <mreitz@redhat.com>
>> Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
>> ---
>> block/Makefile.objs | 1 +
>> block/filter-compress.c | 212 ++++++++++++++++++++++++++++++++++++++++++++++++
>> qapi/block-core.json | 10 ++-
>> 3 files changed, 219 insertions(+), 4 deletions(-)
>> create mode 100644 block/filter-compress.c
>
>> +++ b/qapi/block-core.json
>> @@ -2884,15 +2884,16 @@
>> # @copy-on-read: Since 3.0
>> # @blklogwrites: Since 3.0
>> # @blkreplay: Since 4.2
>> +# @compress: Since 4.2
>
> Are we still trying to get this in 4.2, even though soft freeze is past? Or are we going to have to defer it to 5.0 as a new feature?
>
5.0 of course
--
Best regards,
Vladimir
next prev parent reply other threads:[~2019-11-12 8:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-11 16:04 [PATCH v6 0/3] qcow2: advanced compression options Andrey Shinkevich
2019-11-11 16:04 ` [PATCH v6 1/3] block: introduce compress filter driver Andrey Shinkevich
2019-11-11 20:47 ` Eric Blake
2019-11-12 8:57 ` Vladimir Sementsov-Ogievskiy [this message]
2019-11-12 9:39 ` Kevin Wolf
2019-11-12 10:07 ` Andrey Shinkevich
2019-11-12 10:24 ` Vladimir Sementsov-Ogievskiy
2019-11-12 10:33 ` Vladimir Sementsov-Ogievskiy
2019-11-11 16:04 ` [PATCH v6 2/3] qcow2: Allow writing compressed data of multiple clusters Andrey Shinkevich
2019-11-11 16:04 ` [PATCH v6 3/3] tests/qemu-iotests: add case to write " Andrey Shinkevich
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