On Mon, 26 Nov 2018 16:48:53 +0800
Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> wrote:
> For mdev device created by "aggregate" parameter, this creates new mdev
> device attribute "aggregated_instances" to show number of aggregated
> instances allocated.
>
> v2:
> - change attribute name as "aggregated_instances"
>
> v3:
> - create only for aggregated allocation
>
> Cc: Kirti Wankhede <kwankhede@xxxxxxxxxx>
> Cc: Alex Williamson <alex.williamson@xxxxxxxxxx>
> Cc: Kevin Tian <kevin.tian@xxxxxxxxx>
> Cc: Cornelia Huck <cohuck@xxxxxxxxxx>
> Signed-off-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
> ---
> drivers/vfio/mdev/mdev_sysfs.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/drivers/vfio/mdev/mdev_sysfs.c b/drivers/vfio/mdev/mdev_sysfs.c
> index a329d6ab6cb9..f03bdfbf5a42 100644
> --- a/drivers/vfio/mdev/mdev_sysfs.c
> +++ b/drivers/vfio/mdev/mdev_sysfs.c
> @@ -292,7 +292,17 @@ static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
> return count;
> }
>
> +static ssize_t
> +aggregated_instances_show(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct mdev_device *mdev = to_mdev_device(dev);
> + return sprintf(buf, "%u\n", mdev->type_instances);
> +}
> +
> static DEVICE_ATTR_WO(remove);
Cosmetic: please move this up again to right below the implementation
of the remove attribute :)
> +static DEVICE_ATTR_RO(aggregated_instances);
>
> static const struct attribute *mdev_device_attrs[] = {
> &dev_attr_remove.attr,
