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block/dirty-bitmaps: add inconsistent bit

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Add an inconsistent bit to dirty-bitmaps that allows us to report a bitmap as
persistent but potentially inconsistent, i.e. if we find bitmaps on a qcow2
that have been marked as "in use".

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190301191545.8728-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2019-03-12 12:05:49 -04:00
parent c61b198b63
commit b0f455599d
3 changed files with 31 additions and 4 deletions
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13
qapi/block-core.json
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@ -476,15 +476,20 @@
# and cannot be modified via QMP or used by another operation.
# Replaces `locked` and `frozen` statuses. (since 4.0)
#
# @persistent: true if the bitmap will eventually be flushed to persistent
# storage (since 4.0)
# @persistent: true if the bitmap was stored on disk, is scheduled to be stored
# on disk, or both. (since 4.0)
#
# @inconsistent: true if this is a persistent bitmap that was improperly
# stored. Implies @persistent to be true; @recording and
# @busy to be false. This bitmap cannot be used. To remove
# it, use @block-dirty-bitmap-remove. (Since 4.0)
#
# Since: 1.3
##
{ 'struct': 'BlockDirtyInfo',
'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32',
'recording': 'bool', 'busy': 'bool',
'status': 'DirtyBitmapStatus', 'persistent': 'bool' } }
'recording': 'bool', 'busy': 'bool', 'status': 'DirtyBitmapStatus',
'persistent': 'bool', '*inconsistent': 'bool' } }
##
# @Qcow2BitmapInfoFlags: