if (backing_filename[0] && !s->target->backing_hd) {
bdrv_get_info(s->target, &bdi);
if (s->granularity < bdi.cluster_size) {
- s->buf_size = bdi.cluster_size;
+ s->buf_size = MAX(s->buf_size, bdi.cluster_size);
length = (bdrv_getlength(bs) + s->granularity - 1) / s->granularity;
s->cow_bitmap = bitmap_new(length);
}
};
void mirror_start(BlockDriverState *bs, BlockDriverState *target,
- int64_t speed, int64_t granularity, MirrorSyncMode mode,
- BlockdevOnError on_source_error,
+ int64_t speed, int64_t granularity, int64_t buf_size,
+ MirrorSyncMode mode, BlockdevOnError on_source_error,
BlockdevOnError on_target_error,
BlockDriverCompletionFunc *cb,
void *opaque, Error **errp)
s->target = target;
s->mode = mode;
s->granularity = granularity;
- s->buf_size = granularity;
+ s->buf_size = MAX(buf_size, granularity);
bdrv_set_dirty_tracking(bs, granularity);
bdrv_set_enable_write_cache(s->target, true);