int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, const void *buf, int count) { int ret; ret = bdrv_pwrite(bs, offset, buf, count); if (ret < 0) { return ret; } /* No flush needed for cache modes that already do it */ if (bs->enable_write_cache) { bdrv_flush(bs); } return 0; }