Vladimir Sementsov-Ogievskiy a2adbbf603 block: drop unallocated_blocks_are_zero ...

Currently this field only set by qed and qcow2. But in fact, all
backing-supporting formats (parallels, qcow, qcow2, qed, vmdk) share
these semantics: on unallocated blocks, if there is no backing file they
just memset the buffer with zeroes.

So, document this behavior for .supports_backing and drop
.unallocated_blocks_are_zero

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528094405.145708-10-vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

2020-07-06 10:34:14 +02:00

..

accounting.h

block: add empty account cookie type

2019-10-10 10:56:18 +02:00

aio_task.h

block: introduce aio task pool

2019-10-10 10:56:17 +02:00

aio-wait.h

aio-wait: delegate polling of main AioContext if BQL not held

2020-04-09 16:16:28 +01:00

aio.h

aio-posix: disable fdmon-io_uring when GSource is used

2020-05-18 18:16:00 +01:00

block_backup.h

block/backup: drop unused synchronization interface

2018-12-14 11:52:40 +01:00

block_int.h

block: drop unallocated_blocks_are_zero

2020-07-06 10:34:14 +02:00

block-copy.h

block/block-copy: hide structure definitions

2020-03-11 12:42:30 +01:00

block-hmp-cmds.h

monitor/hmp: move hmp_info_block* to block-hmp-cmds.c

2020-03-09 18:20:21 +00:00

block.h

block: drop unallocated_blocks_are_zero

2020-07-06 10:34:14 +02:00

blockjob_int.h

job: drop job_drain

2019-09-10 08:58:43 +02:00

blockjob.h

blockdev: blockdev_mark_auto_del: drop usage of bs->job

2019-06-18 16:41:10 +02:00

dirty-bitmap.h

block/dirty-bitmap: add bdrv_has_named_bitmaps helper

2020-05-28 13:15:22 -05:00

nbd.h

qemu-storage-daemon: Add --nbd-server option

2020-03-06 17:21:28 +01:00

nvme.h

hw/block/nvme: use constants in identify

2020-06-17 14:53:40 +02:00

qapi.h

qapi: Allow getting flat output from 'query-named-block-nodes'

2020-02-20 16:43:42 +01:00

qdict.h

block: Factor out qobject_input_visitor_new_flat_confused()

2018-06-15 14:49:44 +02:00

raw-aio.h

block/io_uring: implements interfaces for io_uring

2020-01-30 20:59:41 +00:00

snapshot.h

block/snapshot: rename Error ** parameter to more common errp

2019-12-18 08:43:19 +01:00

thread-pool.h

…

throttle-groups.h

throttle-groups: fix restart coroutine iothread race

2019-01-24 10:02:28 +00:00

write-threshold.h

include: Make headers more self-contained

2019-08-16 13:31:51 +02:00