diff options
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/block/mirror.c b/block/mirror.c index 9a0a55940c..21f2d8dcfd 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -324,9 +324,18 @@ static void coroutine_fn mirror_run(void *opaque) } s->common.len = bdrv_getlength(bs); - if (s->common.len <= 0) { + if (s->common.len < 0) { ret = s->common.len; goto immediate_exit; + } else if (s->common.len == 0) { + /* Report BLOCK_JOB_READY and wait for complete. */ + block_job_ready(&s->common); + s->synced = true; + while (!block_job_is_cancelled(&s->common) && !s->should_complete) { + block_job_yield(&s->common); + } + s->common.cancelled = false; + goto immediate_exit; } length = (bdrv_getlength(bs) + s->granularity - 1) / s->granularity; |