diff options
| author | Denis V. Lunev <den@openvz.org> | 2016-07-14 16:33:28 +0300 |
|---|---|---|
| committer | Jeff Cody <jcody@redhat.com> | 2016-07-19 16:54:46 -0400 |
| commit | c7c2769c0e5769eaad9d968fe2161505b657e02a (patch) | |
| tree | b11a219e9f09262e7ba0875dabd121e798e52beb /hw/unicore32 | |
| parent | b7d5062c9cf53f21a555843775392dc03364bbff (diff) | |
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>
Diffstat (limited to 'hw/unicore32')
0 files changed, 0 insertions, 0 deletions