qapi: backup: disable copy_range by default
commit6a30f663d4c0b3c45a544d541e0c4e214b2473a1
authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Sat, 16 Jan 2021 21:47:00 +0000 (17 00:47 +0300)
committerMax Reitz <mreitz@redhat.com>
Tue, 26 Jan 2021 13:36:37 +0000 (26 14:36 +0100)
treea06a3470d60f54af6f648bdf41ed61538faa18d2
parent71eed4cebed487a4f3c9f97aba83c611bbe22f8d
qapi: backup: disable copy_range by default

Further commit will add a benchmark
(scripts/simplebench/bench-backup.py), which will show that backup
works better with async parallel requests (previous commit) and
disabled copy_range. So, let's disable copy_range by default.

Note: the option was added several commits ago with default to true,
to follow old behavior (the feature was enabled unconditionally), and
only now we are going to change the default behavior.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210116214705.822267-19-vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
blockdev.c
qapi/block-core.json