David Edmondson 168468fe19 qemu-img: Add --target-is-zero to convert ...

In many cases the target of a convert operation is a newly provisioned
target that the user knows is blank (reads as zero). In this situation
there is no requirement for qemu-img to wastefully zero out the entire
device.

Add a new option, --target-is-zero, allowing the user to indicate that
an existing target device will return zeros for all reads.

Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20200205110248.2009589-2-david.edmondson@oracle.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

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

..

bitmaps.rst

docs/bitmaps: use QMP lexer instead of json

2019-07-10 15:08:07 -04:00

conf.py

docs: add virtiofsd(1) man page

2020-02-10 17:25:52 +00:00

dbus-vmstate.rst

Add dbus-vmstate object

2020-01-06 18:41:32 +04:00

dbus.rst

Add dbus-vmstate object

2020-01-06 18:41:32 +04:00

firmware.json

hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS

2020-02-02 14:07:57 +11:00

index.rst

docs: add virtiofsd(1) man page

2020-02-10 17:25:52 +00:00

live-block-operations.rst

Remove the deprecated -nodefconfig option

2018-08-31 09:52:46 +02:00

nbd.txt

nbd: Prepare for NBD_CMD_FLAG_FAST_ZERO

2019-09-05 16:03:13 -05:00

parallels.txt

docs: create interop/ subdirectory

2017-06-15 11:18:39 +02:00

pr-helper.rst

global: Squash 'the the'

2019-11-06 17:19:40 +01:00

prl-xml.txt

docs/interop/prl-xml: description of Parallels Disk format

2018-01-22 14:02:33 +00:00

qcow2.txt

docs: qcow2: introduce compression type feature

2020-02-20 16:42:52 +01:00

qed_spec.txt

docs: create interop/ subdirectory

2017-06-15 11:18:39 +02:00

qemu-ga-ref.texi

docs: create interop/ subdirectory

2017-06-15 11:18:39 +02:00

qemu-ga.rst

qemu-ga: Convert invocation documentation to rST

2019-09-13 16:05:01 +01:00

qemu-img.rst

qemu-img: Add --target-is-zero to convert

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

qemu-nbd.rst

qemu-nbd: Removed deprecated --partition option

2020-02-05 17:29:49 -06:00

qemu-option-trace.rst.inc

qemu-nbd: Convert invocation documentation to rST

2020-01-23 15:22:39 +00:00

qemu-qmp-ref.texi

docs: create interop/ subdirectory

2017-06-15 11:18:39 +02:00

qemu-trace-stap.rst

scripts/qemu-trace-stap: Convert documentation to rST

2020-02-03 11:02:23 +00:00

qmp-intro.txt

docs/interop/qmp: Improve OOB documentation

2018-07-03 23:09:31 +02:00

qmp-spec.txt

docs: Update references to JSON RFC

2018-12-13 19:10:06 +01:00

vhost-user-gpu.rst

vhost-user: add vhost_user_gpu_set_socket()

2019-05-29 06:29:07 +02:00

vhost-user.json

virtiofsd: add --print-capabilities option

2020-01-23 16:41:36 +00:00

vhost-user.rst

vhost-user: add VHOST_USER_RESET_DEVICE to reset devices

2020-01-05 07:03:03 -05:00

virtfs-proxy-helper.rst

virtfs-proxy-helper: Convert documentation to rST

2020-02-03 11:02:23 +00:00

virtiofsd.rst

docs: add virtiofsd(1) man page

2020-02-10 17:25:52 +00:00

vnc-ledstate-Pseudo-encoding.txt

docs: create interop/ subdirectory

2017-06-15 11:18:39 +02:00