On Fri, Mar 10, 2023 at 06:31:03PM +0800, Sam Li wrote:
> @@ -2338,9 +2424,15 @@ static int coroutine_fn raw_co_prw(BlockDriverState *bs, uint64_t offset,
>  {
>      BDRVRawState *s = bs->opaque;
>      RawPosixAIOData acb;
> +    int ret;
>  
>      if (fd_open(bs) < 0)
>          return -EIO;
> +#if defined(CONFIG_BLKZONED)
> +    if (bs->bl.wps) {
> +        qemu_co_mutex_lock(&bs->bl.wps->colock);
> +    }
> +#endif

Is the lock only needed by QEMU_AIO_WRITE requests? If yes, can we skip
it for other request types to avoid serializing those requests?