Re: [Qemu-devel] [PATCH V4 2/3] qerror: Add error telling that block dev usage prevents migration

[Luiz Capitulino <lcapitulino@redhat.com>]

On Mon, 23 Jul 2012 16:22:59 +0200
benoit.canet@gmail.com wrote:

> From: Benoît Canet <benoit@irqsave.net>
> 
> Signed-off-by: Benoit Canet <benoit@irqsave.net>
> ---
>  qerror.c |    4 ++++
>  qerror.h |    3 +++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/qerror.c b/qerror.c
> index 92c4eff..d2e76ca 100644
> --- a/qerror.c
> +++ b/qerror.c
> @@ -283,6 +283,10 @@ static const QErrorStringTable qerror_table[] = {
>          .desc      = "Could not set password",
>      },
>      {
> +        .error_fmt = QERR_BLOCK_DEV_IN_USE_MIGRATION_PREVENTED,
> +        .desc      = "Block device in use migration prevented",
> +    },

Let's avoid an specific error. We have two options:

 1. Use QERR_MIGRATION_NOT_SUPPORTED

 2. Add QERR_MIGRATION_BLOCKED

> +    {
>          .error_fmt = QERR_TOO_MANY_FILES,
>          .desc      = "Too many open files",
>      },
> diff --git a/qerror.h b/qerror.h
> index b4c8758..2ef40b5 100644
> --- a/qerror.h
> +++ b/qerror.h
> @@ -233,6 +233,9 @@ QError *qobject_to_qerror(const QObject *obj);
>  #define QERR_SET_PASSWD_FAILED \
>      "{ 'class': 'SetPasswdFailed', 'data': {} }"
>  
> +#define QERR_BLOCK_DEV_IN_USE_MIGRATION_PREVENTED \
> +    "{ 'class': 'BlockDevInUseMigrationPrevented', 'data': {} }"
> +
>  #define QERR_TOO_MANY_FILES \
>      "{ 'class': 'TooManyFiles', 'data': {} }"
>