Re: [PATCH v3 00/12] qcow2: make subclusters discardable

[Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>]

On 9/30/24 5:24 PM, Andrey Drobyshev wrote:
> On 9/13/24 7:39 PM, Andrey Drobyshev wrote:
>> v2: https://lists.nongnu.org/archive/html/qemu-devel/2024-05/msg02396.html
>>
>> v2 -> v3:
>>   * Added patch 12/12 "qcow2: add discard-subclusters option" which
>>     makes subcluster-based discards optional;
>>   * Added a bunch of R-b's.
>>
>> Andrey Drobyshev (12):
>>   qcow2: make function update_refcount_discard() global
>>   qcow2: simplify L2 entries accounting for discard-no-unref
>>   qcow2: put discard requests in the common queue when discard-no-unref
>>     enabled
>>   block/file-posix: add trace event for fallocate() calls
>>   iotests/common.rc: add disk_usage function
>>   iotests/290: add test case to check 'discard-no-unref' option behavior
>>   qcow2: add get_sc_range_info() helper for working with subcluster
>>     ranges
>>   qcow2: zeroize the entire cluster when there're no non-zero
>>     subclusters
>>   qcow2: make subclusters discardable
>>   qcow2: zero_l2_subclusters: fall through to discard operation when
>>     requested
>>   iotests/271: add test cases for subcluster-based discard/unmap
>>   qcow2: add discard-subclusters option
>>
>>  block/file-posix.c           |   1 +
>>  block/qcow2-cluster.c        | 346 ++++++++++++++++++++++++++++-------
>>  block/qcow2-refcount.c       |   8 +-
>>  block/qcow2-snapshot.c       |   6 +-
>>  block/qcow2.c                |  44 +++--
>>  block/qcow2.h                |   8 +-
>>  block/trace-events           |   1 +
>>  tests/qemu-iotests/250       |   5 -
>>  tests/qemu-iotests/271       |  74 ++++++--
>>  tests/qemu-iotests/271.out   |  69 ++++++-
>>  tests/qemu-iotests/290       |  34 ++++
>>  tests/qemu-iotests/290.out   |  28 +++
>>  tests/qemu-iotests/common.rc |   6 +
>>  13 files changed, 513 insertions(+), 117 deletions(-)
>>
> 
> Friendly ping

Yet another ping