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It's unused now (except for permission handling)[*]. The only reasonable
user of it was block-stream job, recently updated to use own blk. And
other block jobs prefer to use own source node related objects.
So, the arguments of dropping the field are:
- block jobs prefer not to use it
- block jobs usually has more then one node to operate on, and better
to operate symmetrically (for example has both source and target
blk's in specific block-job state structure)
*: BlockJob.blk is used to keep some permissions. We simply move
permissions to block-job child created in block_job_create() together
with blk.
In mirror, we just should not care anymore about restoring state of
blk. Most probably this code could be dropped long ago, after dropping
bs->job pointer. Now it finally goes away together with BlockJob.blk
itself.
iotest 141 output is updated, as "bdrv_has_blk(bs)" check in
qmp_blockdev_del() doesn't fail (we don't have blk now). Still, new
error message looks even better.
In iotest 283 we need to add a job id, otherwise "Invalid job ID"
happens now earlier than permission check (as permissions moved from
blk to block-job node).
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>
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We are going to convert backup_top to full featured public filter,
which can be used in separate of backup job. Start from renaming from
"how it used" to "what it does".
While updating comments in 283 iotest, drop and rephrase also things
about ".active", as this field is now dropped, and filter doesn't have
"inactive" mode.
Note that this change may be considered as incompatible interface
change, as backup-top filter format name was visible through
query-block and query-named-block-nodes.
Still, consider the following reasoning:
1. backup-top was never documented, so if someone depends on format
name (for driver that can't be used other than it is automatically
inserted on backup job start), it's a kind of "undocumented feature
use". So I think we are free to change it.
2. There is a hope, that there is no such users: it's a lot more native
to give a good node-name to backup-top filter if need to operate
with it somehow, and don't touch format name.
3. Another "incompatible" change in further commit would be moving
copy-before-write filter from using backing child to file child. And
this is even more reasonable than renaming: for now all public
filters are file-child based.
So, it's a risky change, but risk seems small and good interface worth
it.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210824083856.17408-6-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
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Without any of HEAD^ or HEAD^^ applied, qemu will most likely crash on
the qemu-io invocation, for a variety of immediate reasons. The
underlying problem is generally a use-after-free access into
backup-top's BlockCopyState.
With only HEAD^ applied, qemu-io will run into an EIO (which is not
capture by the output, but you can see that the qemu-io invocation will
be accepted (i.e., qemu-io will run) in contrast to the reference
output, where the node name cannot be found), and qemu will then crash
in query-named-block-nodes: bdrv_get_allocated_file_size() detects
backup-top to be a filter and passes the request through to its child.
However, after bdrv_backup_top_drop(), that child is NULL, so the
recursive call crashes.
With HEAD^^ applied, this test should pass.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210219153348.41861-4-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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We are going to drop group file. Define group in tests as a preparatory
step.
The patch is generated by
cd tests/qemu-iotests
grep '^[0-9]\{3\} ' group | while read line; do
file=$(awk '{print $1}' <<< "$line");
groups=$(sed -e 's/^... //' <<< "$line");
awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
cat tmp > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
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All other test files are executable. Fix these.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-5-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
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The test case forgot to specify the null-co size for the target node.
When adding a check to backup that both sizes match, this would fail
because of the size mismatch and not the behaviour that the test really
wanted to test.
Fixes: a541fcc27c98b96da187c7d4573f3270f3ddd283
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200430142755.315494-2-kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Like script_main, but doesn't require a single point of entry.
Replace all existing initialization sections with this drop-in replacement.
This brings debug support to all existing script-style iotests.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200331000014.11581-12-jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
[mreitz: Give 274 the same treatment]
Signed-off-by: Max Reitz <mreitz@redhat.com>
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Use the program search path to find the Python 3 interpreter.
Patch created mechanically by running:
$ sed -i "s,^#\!/usr/bin/\(env\ \)\?python$,#\!/usr/bin/env python3," \
$(git grep -lF '#!/usr/bin/env python' \
| xargs grep -L 'if __name__.*__main__')
Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200130163232.10446-11-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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This test checks that bug is really fixed by previous commit.
Cc: qemu-stable@nongnu.org # v4.2.0
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20200121142802.21467-3-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
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