If we remove the child with the highest index from the quorum, decrement s->next_child_index. This way we get stable children names as long as we only remove the last child.
Signed-off-by: Lukas Straub <lukasstra...@web.de> --- block/quorum.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/block/quorum.c b/block/quorum.c index df68adcfaa..6100d4108a 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -1054,6 +1054,12 @@ static void quorum_del_child(BlockDriverState *bs, BdrvChild *child, /* We know now that num_children > threshold, so blkverify must be false */ assert(!s->is_blkverify); + unsigned child_id; + sscanf(child->name, "children.%u", &child_id); + if (child_id == s->next_child_index - 1) { + s->next_child_index--; + } + bdrv_drained_begin(bs); /* We can safely remove this child now */ -- 2.20.1