Anton Nefedov c8bb23cbdb qcow2: skip writing zero buffers to empty COW areas ... If COW areas of the newly allocated clusters are zeroes on the backing image, efficient bdrv_write_zeroes(flags=BDRV_REQ_NO_FALLBACK) can be used on the whole cluster instead of writing explicit zero buffers later in perform_cow(). iotest 060: write to the discarded cluster does not trigger COW anymore. Use a backing image instead. Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Message-id: 20190516142749.81019-2-anton.nefedov@virtuozzo.com Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Max Reitz <mreitz@redhat.com>		2019-05-28 20:30:55 +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	qcow2: skip writing zero buffers to empty COW areas	2019-05-28 20:30:55 +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block.json	nbd: fix outdated qapi docs syntax for tls-creds	2019-03-06 11:05:27 -06:00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: Define PCIe link speed and width properties	2018-12-19 16:48:16 -05:00
crypto.json	crypto: Fix defaults in QCryptoBlockCreateOptionsLUKS	2018-12-12 11:16:49 +00:00
introspect.json	json: Update references to RFC 7159 to RFC 8259	2018-08-24 20:27:14 +02:00
job.json	qapi/job: The next release will be 3.0	2018-06-29 14:20:56 +02:00
Makefile.objs	qapi: qapi for audio backends	2019-03-11 10:29:26 +01:00
migration.json	qapi/migration.json: Rename COLOStatus last_mode to last-mode	2019-04-02 13:32:15 +02:00
misc.json	qapi: move RTC_CHANGE to the target schema	2019-02-18 14:44:05 +01:00
net.json	qmp: Add announce-self command	2019-03-05 11:27:41 +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	qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF	2018-05-04 08:27:53 +02:00
qapi-schema.json	qapi: qapi for audio backends	2019-03-11 10:29:26 +01:00
qapi-util.c	qapi: Change data type of the FOO_lookup generated for enum FOO	2017-09-04 13:09:13 +02:00
qapi-visit-core.c	Include qapi/qmp/qobject.h exactly where needed	2018-02-09 13:52:15 +01:00
qmp-dispatch.c	qapi/qmp-dispatch: fix return value in do_qmp_dispatch	2019-03-26 08:10:11 +01:00
qmp-event.c	qapi: Eliminate indirection through qmp_event_get_func_emit()	2019-01-24 10:01:05 +01:00
qmp-registry.c	qapi: remove qmp_unregister_command()	2019-02-18 14:44:05 +01:00
qobject-input-visitor.c	qapi: Use qemu_strtod_finite() in qobject-input-visitor	2018-12-13 19:10:06 +01:00
qobject-output-visitor.c	qobject: Modify qobject_ref() to return obj	2018-05-04 08:27:53 +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	sockets: allow SocketAddress 'fd' to reference numeric file descriptors	2018-03-13 18:06:06 +00:00
string-input-visitor.c	qapi: Rewrite string-input-visitor's integer and list parsing	2018-12-13 19:10:06 +01:00
string-output-visitor.c	qapi: Use QNull for a more regular visit_type_null()	2017-07-24 13:35:11 +02:00
target.json	target/mips: implement QMP query-cpu-definitions command	2019-02-21 19:36:47 +01:00
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	block: remove 'x' prefix from experimental bitmap APIs	2019-01-14 10:09:46 -06:00
ui.json	curses: add option to specify VGA font encoding	2019-03-13 08:29:06 +01:00