Denis V. Lunev c7c2769c0e mirror: efficiently zero out target ...

With a bdrv_co_write_zeroes method on a target BDS and when this method
is working as indicated by the bdrv_can_write_zeroes_with_unmap(), zeroes
will not be placed into the wire. Thus the target could be very efficiently
zeroed out. This should be done with the largest chunk possible.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy<vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1468503209-19498-8-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Jeff Cody <jcody@redhat.com>
CC: Eric Blake <eblake@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>

2016-07-19 16:54:46 -04:00

..

accounting.c

block: Clean up includes

2016-01-20 13:36:23 +01:00

archipelago.c

coccinelle: Remove unnecessary variables for function return value

2016-06-20 16:38:13 +02:00

backup.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

blkdebug.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

blkreplay.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

blkverify.c

block: Convert bdrv_aio_writev() to BdrvChild

2016-07-05 16:46:26 +02:00

block-backend.c

block/qdev: Allow configuring rerror/werror with qdev properties

2016-07-13 13:32:27 +02:00

bochs.c

block: Convert bdrv_co_preadv/pwritev to BdrvChild

2016-07-05 16:46:27 +02:00

cloop.c

block: Convert bdrv_pread(v) to BdrvChild

2016-07-05 16:46:27 +02:00

commit.c

Improve block job rate limiting for small bandwidth values

2016-07-13 13:41:38 +02:00

crypto.c

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-07-06' into staging

2016-07-06 11:38:09 +01:00

curl.c

block: always compile-check debug prints

2016-05-12 15:22:08 +02:00

dirty-bitmap.c

dirty-bitmap: operate with int64_t amount

2016-07-19 16:54:46 -04:00

dmg.c

block: Convert bdrv_pread(v) to BdrvChild

2016-07-05 16:46:27 +02:00

gluster.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

io.c

block: ignore flush requests when storage is clean

2016-07-18 18:19:01 -04:00

iscsi.c

block/iscsi: allow caching of the allocation map

2016-07-19 08:34:53 +02:00

linux-aio.c

linux-aio: prevent submitting more than MAX_EVENTS

2016-07-18 15:10:52 +01:00

Makefile.objs

block: Move bdrv_commit() to block/commit.c

2016-07-05 16:46:27 +02:00

mirror.c

mirror: efficiently zero out target

2016-07-19 16:54:46 -04:00

nbd-client.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

nbd-client.h

nbd: Simplify client FUA handling

2016-05-12 15:22:09 +02:00

nbd.c

block: Switch discard length bounds to byte-based

2016-07-05 16:46:25 +02:00

nfs.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

null.c

block/null: Implement bdrv_refresh_filename()

2016-06-16 15:20:37 +02:00

parallels.c

block: Convert bdrv_pwrite_zeroes() to BdrvChild

2016-07-05 16:46:27 +02:00

qapi.c

qapi: Add new visit_complete() function

2016-07-06 10:52:04 +02:00

qcow2-cache.c

block: Convert bdrv_pwrite(v/_sync) to BdrvChild

2016-07-05 16:46:27 +02:00

qcow2-cluster.c

qcow2: Fix qcow2_get_cluster_offset()

2016-07-13 13:41:38 +02:00

qcow2-refcount.c

block/qcow2: Don't use cpu_to_*w()

2016-07-05 16:54:04 +02:00

qcow2-snapshot.c

block: Convert bdrv_pwrite(v/_sync) to BdrvChild

2016-07-05 16:46:27 +02:00

qcow2.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

qcow2.h

qcow2: Implement .bdrv_co_pwritev()

2016-06-16 15:19:55 +02:00

qcow.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

qed-check.c

qed: Use DIV_ROUND_UP

2016-06-07 18:19:24 +03:00

qed-cluster.c

block: Clean up includes

2016-01-20 13:36:23 +01:00

qed-gencb.c

block: Clean up includes

2016-01-20 13:36:23 +01:00

qed-l2-cache.c

block: Clean up includes

2016-01-20 13:36:23 +01:00

qed-table.c

block: Convert bdrv_aio_writev() to BdrvChild

2016-07-05 16:46:26 +02:00

qed.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

qed.h

util: move declarations out of qemu-common.h

2016-03-22 22:20:17 +01:00

quorum.c

block: Convert bdrv_aio_writev() to BdrvChild

2016-07-05 16:46:26 +02:00

raw_bsd.c

block: Convert bdrv_co_preadv/pwritev to BdrvChild

2016-07-05 16:46:27 +02:00

raw-posix.c

linux-aio: share one LinuxAioState within an AioContext

2016-07-18 15:09:31 +01:00

raw-win32.c

linux-aio: share one LinuxAioState within an AioContext

2016-07-18 15:09:31 +01:00

rbd.c

coccinelle: Remove unnecessary variables for function return value

2016-06-20 16:38:13 +02:00

sheepdog.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

snapshot.c

error: Remove NULL checks on error_propagate() calls

2016-06-20 16:38:13 +02:00

ssh.c

coroutine: move entry argument to qemu_coroutine_create

2016-07-13 13:26:02 +02:00

stream.c

Improve block job rate limiting for small bandwidth values

2016-07-13 13:41:38 +02:00

throttle-groups.c

block: Move I/O throttling configuration functions to BlockBackend

2016-05-19 16:45:30 +02:00

trace-events

trace: split out trace events for block/ directory

2016-06-20 17:22:14 +01:00

vdi.c

block: Convert bdrv_co_preadv/pwritev to BdrvChild

2016-07-05 16:46:27 +02:00

vhdx-endian.c

qemu-common: stop including qemu/bswap.h from qemu-common.h

2016-05-19 16:42:28 +02:00

vhdx-log.c

block: Convert bdrv_pwrite(v/_sync) to BdrvChild

2016-07-05 16:46:27 +02:00

vhdx.c

block: Convert bdrv_pwrite(v/_sync) to BdrvChild

2016-07-05 16:46:27 +02:00

vhdx.h

block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec

2014-12-12 15:42:22 +00:00

vmdk.c

vmdk: fix metadata write regression

2016-07-13 13:41:39 +02:00

vpc.c

block: Convert bdrv_co_preadv/pwritev to BdrvChild

2016-07-05 16:46:27 +02:00

vvfat.c

vvfat: Fix qcow write target driver specification

2016-07-13 13:41:39 +02:00

win32-aio.c

linux-aio: share one LinuxAioState within an AioContext

2016-07-18 15:09:31 +01:00

write-threshold.c

block: Clean up includes

2016-01-20 13:36:23 +01:00