Re: [Qemu-devel] [Qemu-block] [PATCH v4 1/9] configure: permit use of io_uring

[Maxim Levitsky]

On Mon, 2019-06-03 at 18:08 +0530, Aarushi Mehta wrote:
> Reviewed-by: Stefan Hajnoczi <address@hidden>
> Signed-off-by: Aarushi Mehta <address@hidden>
> ---
>  configure | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/configure b/configure
> index 6cdcfb2dc3..cb49ef0fcc 100755
> --- a/configure
> +++ b/configure
> @@ -365,6 +365,7 @@ xen=""
>  xen_ctrl_version=""
>  xen_pci_passthrough=""
>  linux_aio=""
> +linux_io_uring=""
>  cap_ng=""
>  attr=""
>  libattr=""
> @@ -1266,6 +1267,10 @@ for opt do
>    ;;
>    --enable-linux-aio) linux_aio="yes"
>    ;;
> +  --disable-linux-io-uring) linux_io_uring="no"
> +  ;;
> +  --enable-linux-io-uring) linux_io_uring="yes"
> +  ;;
>    --disable-attr) attr="no"
>    ;;
>    --enable-attr) attr="yes"
> @@ -1784,6 +1789,7 @@ disabled with --disable-FEATURE, default is enabled if 
> available:
>    vde             support for vde network
>    netmap          support for netmap network
>    linux-aio       Linux AIO support
> +  linux-io-uring  Linux io_uring support
>    cap-ng          libcap-ng support
>    attr            attr and xattr support
>    vhost-net       vhost-net kernel acceleration support
> @@ -3973,6 +3979,21 @@ EOF
>      linux_aio=no
>    fi
>  fi
> +##########################################
> +# linux-io-uring probe
> +
> +if test "$linux_io_uring" != "no" ; then
> +  if $pkg_config liburing; then
> +    linux_io_uring_cflags=$($pkg_config --cflags liburing)
> +    linux_io_uring_libs=$($pkg_config --libs liburing)
> +    linux_io_uring=yes
> +  else
> +    if test "$linux_io_uring" = "yes" ; then
> +      feature_not_found "linux io_uring" "Install liburing devel"
> +    fi
> +    linux_io_uring=no
> +  fi
> +fi
>  
>  ##########################################
>  # TPM emulation is only on POSIX
> @@ -6396,6 +6417,7 @@ echo "PIE               $pie"
>  echo "vde support       $vde"
>  echo "netmap support    $netmap"
>  echo "Linux AIO support $linux_aio"
> +echo "Linux io_uring support $linux_io_uring"
>  echo "ATTR/XATTR support $attr"
>  echo "Install blobs     $blobs"
>  echo "KVM support       $kvm"
> @@ -6876,6 +6898,11 @@ fi
>  if test "$linux_aio" = "yes" ; then
>    echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
>  fi
> +if test "$linux_io_uring" = "yes" ; then
> +  echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
> +  echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
> +  echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
> +fi
>  if test "$attr" = "yes" ; then
>    echo "CONFIG_ATTR=y" >> $config_host_mak
>  fi



Reviewed-by: Maxim Levitsky <address@hidden>

Best regards,
        Maxim Levitsky