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[PATCH 0/4] block: Relax restrictions for blockdev-snapshot
From: |
Kevin Wolf |
Subject: |
[PATCH 0/4] block: Relax restrictions for blockdev-snapshot |
Date: |
Thu, 5 Mar 2020 13:50:56 +0100 |
This series allows libvirt to fix a regression that its switch from
drive-mirror to blockdev-mirror caused: It currently requires that the
backing chain of the target image is already available when the mirror
operation is started.
In reality, the backing chain may only be copied while the operation is
in progress, so the backing file of the target image needs to stay
disabled until the operation completes and should be attached only at
that point. Without this series, we don't have a supported API to attach
the backing file at that later point.
Kevin Wolf (4):
block: Make bdrv_get_cumulative_perm() public
block: Relax restrictions for blockdev-snapshot
iotests: Fix run_job() with use_log=False
iotests: Test mirror with temporarily disabled target backing file
include/block/block_int.h | 3 ++
block.c | 6 ++--
blockdev.c | 14 +++++----
tests/qemu-iotests/iotests.py | 5 +++-
tests/qemu-iotests/155 | 54 +++++++++++++++++++++++++++++++----
tests/qemu-iotests/155.out | 4 +--
6 files changed, 68 insertions(+), 18 deletions(-)
--
2.20.1
- [PATCH 0/4] block: Relax restrictions for blockdev-snapshot,
Kevin Wolf <=
- [PATCH 3/4] iotests: Fix run_job() with use_log=False, Kevin Wolf, 2020/03/05
- [PATCH 1/4] block: Make bdrv_get_cumulative_perm() public, Kevin Wolf, 2020/03/05
- [PATCH 2/4] block: Relax restrictions for blockdev-snapshot, Kevin Wolf, 2020/03/05
- [PATCH 4/4] iotests: Test mirror with temporarily disabled target backing file, Kevin Wolf, 2020/03/05
- Re: [PATCH 0/4] block: Relax restrictions for blockdev-snapshot, no-reply, 2020/03/05
- Re: [PATCH 0/4] block: Relax restrictions for blockdev-snapshot, no-reply, 2020/03/05
- Re: [PATCH 0/4] block: Relax restrictions for blockdev-snapshot, Peter Krempa, 2020/03/05