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block: refactor bdrv_node_check_perm()

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Now, bdrv_node_check_perm() is called only with fresh cumulative
permissions, so its actually "refresh_perm".

Move permission calculation to the function. Also, drop unreachable
error message and rewrite the remaining one to be more generic (as now
we don't know which node is added and which was already here).

Add also Virtuozzo copyright, as big work is done at this point.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210428151804.439460-37-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-04-28 18:18:04 +03:00 • committed by Kevin Wolf
parent 2fe5ff56f1
commit c20555e15f
2 changed files with 12 additions and 28 deletions
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2
tests/qemu-iotests/245
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@ -905,7 +905,7 @@ class TestBlockdevReopen(iotests.QMPTestCase):
# We can't reopen hd1 to read-only, as block-stream requires it to be
# read-write
self.reopen(opts['backing'], {'read-only': True},
"Cannot make block node read-only, there is a writer on it")
"Read-only block node 'hd1' cannot support read-write users")
# We can't remove hd2 while the stream job is ongoing
opts['backing']['backing'] = None