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qapi: implement block-dirty-bitmap-remove transaction action

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It is used to do transactional movement of the bitmap (which is
possible in conjunction with merge command). Transactional bitmap
movement is needed in scenarios with external snapshot, when we don't
want to leave copy of the bitmap in the base image.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190708220502.12977-3-jsnow@redhat.com
[Edited "since" version to 4.2 --js]
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2019-07-29 16:35:54 -04:00
parent 2899f41eef
commit c4e4b0fa59
6 changed files with 85 additions and 17 deletions
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2
migration/block-dirty-bitmap.c
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@ -326,7 +326,7 @@ static int init_dirty_bitmap_migration(void)
/* unset migration flags here, to not roll back it */
QSIMPLEQ_FOREACH(dbms, &dirty_bitmap_mig_state.dbms_list, entry) {
bdrv_dirty_bitmap_set_migration(dbms->bitmap, true);
bdrv_dirty_bitmap_skip_store(dbms->bitmap, true);
}
if (QSIMPLEQ_EMPTY(&dirty_bitmap_mig_state.dbms_list)) {