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| author | Sam Eiderman | 2019-05-23 18:33:37 +0200 |
|---|---|---|
| committer | Max Reitz | 2019-05-28 20:30:55 +0200 |
| commit | 330c72957196e0ae382abcaa97ebf4eb9bc8574f (patch) | |
| tree | c6f6d6855154ae8a323f101560506586b922239f /qapi | |
| parent | qemu-img: rebase: Reduce reads on in-chain rebase (diff) | |
| download | qemu-330c72957196e0ae382abcaa97ebf4eb9bc8574f.tar.gz qemu-330c72957196e0ae382abcaa97ebf4eb9bc8574f.tar.xz qemu-330c72957196e0ae382abcaa97ebf4eb9bc8574f.zip | |
qemu-img: rebase: Reuse in-chain BlockDriverState
If a chain was detected, don't open a new BlockBackend from the target
backing file which will create a new BlockDriverState. Instead, create
an empty BlockBackend and attach the already open BlockDriverState.
Permissions for blk_new() were copied from blk_new_open() when
flags = 0.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Eyal Moscovici <eyal.moscovici@oracle.com>
Signed-off-by: Sagi Amit <sagi.amit@oracle.com>
Co-developed-by: Sagi Amit <sagi.amit@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
Message-id: 20190523163337.4497-4-shmuel.eiderman@oracle.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'qapi')
0 files changed, 0 insertions, 0 deletions