@@ -671,6 +671,10 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target,
return;
}
+ if (buf_size < 0) {
+ error_setg(errp, "Invalid parameter 'buf-size'");
+ return;
+ }
s = block_job_create(driver, bs, speed, cb, opaque, errp);
if (!s) {
@@ -684,7 +688,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target,
s->is_none_mode = is_none_mode;
s->base = base;
s->granularity = granularity;
- s->buf_size = MAX(buf_size, granularity);
+ s->buf_size = ROUND_UP(buf_size, granularity);
s->dirty_bitmap = bdrv_create_dirty_bitmap(bs, granularity, NULL, errp);
if (!s->dirty_bitmap) {