Add test for a new backup option: discard-source.
Signed-off-by: Vladimir Sementsov-Ogievskiy
---
.../qemu-iotests/tests/backup-discard-source | 154 ++
.../tests/backup-discard-source.out | 5 +
2 files changed, 159 insertions(+)
create mode 100755
Hi all!
Here is a new option for backup, that brings two things into
push-backup-with-fleecing scheme:
- discard copied region in temporary image to save disk space
- avoid extra copy-before-write operation in the region that is already
copied
This is based on
"[PATCH v5 00/45]
Add a parameter that enables discard-after-copy. That is mostly useful
in "push backup with fleecing" scheme, when source is snapshot-access
format driver node, based on copy-before-write filter snapshot-access
API:
[guest] [snapshot-access] ~~ blockdev-backup ~~> [backup target]
|
Currently block_copy creates copy_bitmap in source node. But that is in
bad relation with .independent_close=true of copy-before-write filter:
source node may be detached and removed before .bdrv_close() handler
called, which should call block_copy_state_free(), which in turn should
remove
On 3/31/22 15:51, Emanuele Giuseppe Esposito wrote:
bdrv_graph_list_wrlock <-> start_exclusive
bdrv_graph_list_wrunlock <-> end_exclusive
bdrv_graph_list_rdlock <-> cpu_exec_start
bdrv_graph_list_rdunlock <-> cpu_exec_end
This wouldn't protect the list but the whole graph, i.e. the parents
On Thu, Mar 24, 2022 at 9:33 PM Eric Blake wrote:
>
> On Thu, Mar 24, 2022 at 02:30:06PM -0400, John Snow wrote:
> > Without this change, asserting that qemu_io always returns 0 causes this
> > test to fail in a way we happened not to be catching previously:
> >
> >
High level looks good but I have some questions.
Rather than a new boolean I'd rather we re-used started_vu by changing
it to an enum and having different values for starting and started.
On Tue, Mar 29, 2022 at 12:15:46AM +0800, Jie Wang wrote:
> During Virtio1.0 dev(start_on_kick) in
Am 31/03/2022 um 11:59 schrieb Paolo Bonzini:
> On 3/30/22 18:02, Paolo Bonzini wrote:
>> On 3/30/22 12:53, Hanna Reitz wrote:
Seems a good compromise between drains and rwlock. What do you think?
>>>
>>> Well, sounds complicated. So I’m asking myself whether this would be
>>>
On Fri, 18 Mar 2022 20:18:19 +0100
Lukasz Maniak wrote:
> From: Łukasz Gieryk
>
> PCI device capable of SR-IOV support is a new, still-experimental
> feature with only a single working example of the Nvme device.
>
> This patch in an attempt to fix a double-free problem when a
>
Daniel P. Berrangé writes:
> On Tue, Mar 15, 2022 at 03:50:26PM +0100, Kevin Wolf wrote:
[...]
>> ...using C++ in coroutine code means that all of the block layer would
>> suddenly become C++ and would be most affected by this effect. I'm not
>> sure if that's something I would like to see, at
Hanna Reitz writes:
> On 17.03.22 16:11, Paolo Bonzini wrote:
>> On 3/16/22 13:32, Stefan Hajnoczi wrote:
>>> You can define rules and a way to enforce a subset of C++, but I think
>>> over time the code will be C++. A policy that is complicated discourages
>>> contributors.
>>>
>>> For these
On 3/31/22 09:44, Christian Borntraeger wrote:
Am 21.02.22 um 11:27 schrieb Christian Borntraeger:
Am 10.02.22 um 18:44 schrieb Vladimir Sementsov-Ogievskiy:
10.02.2022 20:13, Thomas Huth wrote:
On 10/02/2022 15.51, Christian Borntraeger wrote:
Am 10.02.22 um 15:47 schrieb Vladimir
On 3/30/22 18:02, Paolo Bonzini wrote:
On 3/30/22 12:53, Hanna Reitz wrote:
Seems a good compromise between drains and rwlock. What do you think?
Well, sounds complicated. So I’m asking myself whether this would be
noticeably better than just an RwLock for graph modifications, like
the
Am 31.03.22 um 09:44 schrieb Christian Borntraeger:
Am 21.02.22 um 11:27 schrieb Christian Borntraeger:
Am 10.02.22 um 18:44 schrieb Vladimir Sementsov-Ogievskiy:
10.02.2022 20:13, Thomas Huth wrote:
On 10/02/2022 15.51, Christian Borntraeger wrote:
Am 10.02.22 um 15:47 schrieb
Am 21.02.22 um 11:27 schrieb Christian Borntraeger:
Am 10.02.22 um 18:44 schrieb Vladimir Sementsov-Ogievskiy:
10.02.2022 20:13, Thomas Huth wrote:
On 10/02/2022 15.51, Christian Borntraeger wrote:
Am 10.02.22 um 15:47 schrieb Vladimir Sementsov-Ogievskiy:
10.02.2022 10:57, Christian
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