Re: [Xen-devel] [PATCH V4 23/24] libxl: consider force removal of device successful

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2014-05-01 at 13:58 +0100, Wei Liu wrote:
> If a device is force removed and the force removal successes, from

"succeeds".

> guest's PoV this device is gone. So the toolstack should consider this a
> successful case as well.

This seems rather self evident (consider success as success), were you
perhaps trying to say something opposite, which is that if a force
remove fails for some reason that we should (e.g. for the purposes of a
later migration etc) consider the device to have actually been removed?


> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
>  tools/libxl/libxl_device.c   |   12 ++++++++++--
>  tools/libxl/libxl_internal.h |    4 ++++
>  2 files changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
> index fa99f77..7a37778 100644
> --- a/tools/libxl/libxl_device.c
> +++ b/tools/libxl/libxl_device.c
> @@ -845,6 +845,11 @@ void libxl__initiate_device_remove(libxl__egc *egc,
>          if (rc < 0) goto out;
>      }
>  
> +    /* At this point the XS transaction is commited. So check if we
> +     * force removal of the device.

"check if we were force removing the device". I think committed has two
t-s too (although I confess I'm not 100% sure...).

> +     */
> +    aodev->force_removed = aodev->force;

How and when can aodev->force_removed be distinct from aodev->force?

Ian.


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