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Re: [libvirt] [PATCH] Remove deprecated -balloon option



On Tue, Aug 21, 2018 at 12:05:30PM +0200, Thomas Huth wrote:
> The "-balloon" option has been replaced by "-device virtio-balloon".
> It's been marked as deprecated since two releases, and nobody
> complained, so let's remove it now.
> 
> Signed-off-by: Thomas Huth <thuth redhat com>

Reviewed-by: Michael S. Tsirkin <mst redhat com>


> ---
>  docs/virtio-balloon-stats.txt |  6 +++---
>  qemu-deprecated.texi          |  5 -----
>  qemu-options.hx               | 10 ----------
>  vl.c                          | 36 ------------------------------------
>  4 files changed, 3 insertions(+), 54 deletions(-)
> 
> diff --git a/docs/virtio-balloon-stats.txt b/docs/virtio-balloon-stats.txt
> index 9985e1d..1732cc8 100644
> --- a/docs/virtio-balloon-stats.txt
> +++ b/docs/virtio-balloon-stats.txt
> @@ -61,9 +61,9 @@ It's also important to note the following:
>     respond to the request the timer will never be re-armed, which has
>     the same effect as disabling polling
>  
> -Here are a few examples. QEMU is started with '-balloon virtio', which
> -generates '/machine/peripheral-anon/device[1]' as the QOM path for the
> -balloon device.
> +Here are a few examples. QEMU is started with '-device virtio-balloon',
> +which generates '/machine/peripheral-anon/device[1]' as the QOM path for
> +the balloon device.
>  
>  Enable polling with 2 seconds interval:
>  
> diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
> index 67b7211..0714017 100644
> --- a/qemu-deprecated.texi
> +++ b/qemu-deprecated.texi
> @@ -106,11 +106,6 @@ enabled via the ``-machine usb=on'' argument.
>  
>  The ``-nodefconfig`` argument is a synonym for ``-no-user-config``.
>  
> - subsection -balloon (since 2.12.0)
> -
> -The @option{--balloon virtio} argument has been superseded by
> - option{--device virtio-balloon}.
> -
>  @subsection -fsdev handle (since 2.12.0)
>  
>  The ``handle'' fsdev backend does not support symlinks and causes the 9p
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 4efdedf..47c6b92 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -454,16 +454,6 @@ modprobe i810_audio clocking=48000
>  @end example
>  ETEXI
>  
> -DEF("balloon", HAS_ARG, QEMU_OPTION_balloon,
> -    "-balloon virtio[,addr=str]\n"
> -    "                enable virtio balloon device (deprecated)\n", QEMU_ARCH_ALL)
> -STEXI
> - item -balloon virtio[,addr= var{addr}]
> - findex -balloon
> -Enable virtio balloon device, optionally with PCI address @var{addr}. This
> -option is deprecated, use @option{-device virtio-balloon} instead.
> -ETEXI
> -
>  DEF("device", HAS_ARG, QEMU_OPTION_device,
>      "-device driver[,prop[=value][,...]]\n"
>      "                add device (based on driver)\n"
> diff --git a/vl.c b/vl.c
> index 16b913f..f952f01 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -2127,36 +2127,6 @@ static void parse_display(const char *p)
>      }
>  }
>  
> -static int balloon_parse(const char *arg)
> -{
> -    QemuOpts *opts;
> -
> -    warn_report("This option is deprecated. "
> -                "Use '--device virtio-balloon' to enable the balloon device.");
> -
> -    if (strcmp(arg, "none") == 0) {
> -        return 0;
> -    }
> -
> -    if (!strncmp(arg, "virtio", 6)) {
> -        if (arg[6] == ',') {
> -            /* have params -> parse them */
> -            opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
> -                                           false);
> -            if (!opts)
> -                return  -1;
> -        } else {
> -            /* create empty opts */
> -            opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
> -                                    &error_abort);
> -        }
> -        qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
> -        return 0;
> -    }
> -
> -    return -1;
> -}
> -
>  char *qemu_find_file(int type, const char *name)
>  {
>      int i;
> @@ -3659,12 +3629,6 @@ int main(int argc, char **argv, char **envp)
>              case QEMU_OPTION_no_hpet:
>                  no_hpet = 1;
>                  break;
> -            case QEMU_OPTION_balloon:
> -                if (balloon_parse(optarg) < 0) {
> -                    error_report("unknown -balloon argument %s", optarg);
> -                    exit(1);
> -                }
> -                break;
>              case QEMU_OPTION_no_reboot:
>                  no_reboot = 1;
>                  break;
> -- 
> 1.8.3.1


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