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qemu-e2k/qapi
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Max Reitz fa27c47810 doc: Preallocation does not require writing zeroes 
When preallocating an encrypted qcow2 image, it just lets the protocol
driver write data and then does not mark the clusters as zero.
Therefore, reading this image will yield effectively random data.

As such, we have not fulfilled the promise of always writing zeroes when
preallocating an image in a while.  It seems that nobody has really
cared, so change the documentation to conform to qemu's actual behavior.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190711132935.13070-1-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
 		2019-08-19 17:13:26 +02:00
..
Makefile.objs qapi: Split error.json off common.json 2019-08-16 13:31:51 +02:00
audio.json audio/paaudio: prolong and make latency configurable 2019-03-18 12:21:15 +01:00
authz.json authz: add QAuthZList object type for an access control list 2019-02-26 15:32:18 +00:00
block-core.json doc: Preallocation does not require writing zeroes 2019-08-19 17:13:26 +02:00
block.json nbd: fix outdated qapi docs syntax for tls-creds 2019-03-06 11:05:27 -06:00
char.json chardev: add support for authorization for TLS clients 2019-03-11 16:55:52 +01:00
common.json qapi: Split error.json off common.json 2019-08-16 13:31:51 +02:00
crypto.json crypto: Fix defaults in QCryptoBlockCreateOptionsLUKS 2018-12-12 11:16:49 +00:00
dump.json qapi: Split dump.json off misc.json 2019-07-02 13:37:00 +02:00
error.json qapi: Split error.json off common.json 2019-08-16 13:31:51 +02:00
introspect.json qapi: Add feature flags to struct types 2019-06-12 18:34:26 +02:00
job.json qapi/job: The next release will be 3.0 2018-06-29 14:20:56 +02:00
machine-target.json qmp: Add "alias-of" field to query-cpu-definitions 2019-07-05 17:08:04 -03:00
machine.json qmp: Add deprecation information to query-machines 2019-07-05 17:08:04 -03:00
migration.json qapi/migration.json: Rename COLOStatus last_mode to last-mode 2019-04-02 13:32:15 +02:00
misc-target.json qapi: Rename target.json to misc-target.json 2019-07-02 13:37:00 +02:00
misc.json virtio, pc, pci: features, fixes, cleanups 2019-07-05 09:51:50 +01:00
net.json net/announce: Add optional ID 2019-07-02 10:21:06 +08:00
opts-visitor.c qapi: Fix QemuOpts visitor regression on unvisited input 2017-03-22 19:24:34 +01:00
qapi-clone-visitor.c qapi/qnull: Add own header 2017-11-17 18:21:30 +01:00
qapi-dealloc-visitor.c Include qemu/queue.h slightly less 2019-08-16 13:31:52 +02:00
qapi-schema.json qapi: Split error.json off common.json 2019-08-16 13:31:51 +02:00
qapi-util.c qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h 2019-06-11 20:22:09 +02:00
qapi-visit-core.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qdev.json qapi: Split qom.json and qdev.json off misc.json 2019-07-02 07:19:57 +02:00
qmp-dispatch.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
qmp-event.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qmp-registry.c qapi: remove qmp_unregister_command() 2019-02-18 14:44:05 +01:00
qobject-input-visitor.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qobject-output-visitor.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qom.json qapi: Split qom.json and qdev.json off misc.json 2019-07-02 07:19:57 +02:00
rdma.json qapi: Define new QMP message for pvrdma 2018-12-22 11:09:56 +02:00
rocker.json qapi: The #optional tag is redundant, drop 2017-03-16 07:13:02 +01:00
run-state.json qmp: Split ShutdownCause host-qmp into quit and system-reset 2018-12-18 07:55:47 +01:00
sockets.json qapi: Add InetSocketAddress member keep-alive 2019-08-15 13:22:13 -05:00
string-input-visitor.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
string-output-visitor.c qapi: Use QNull for a more regular visit_type_null() 2017-07-24 13:35:11 +02:00
tpm.json qapi: break long lines at 'data' member 2018-12-13 19:20:11 +01:00
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
trace.json qapi-schema: Improve section headings 2017-09-04 13:09:12 +02:00
transaction.json qapi: implement block-dirty-bitmap-remove transaction action 2019-08-16 16:28:03 -04:00
ui.json curses: add option to specify VGA font encoding 2019-03-13 08:29:06 +01:00