[PATCH v2 07/14] vfio/platform: Use open_device() instead of open coding a refcnt scheme

[Cornelia Huck]

On Tue, Jul 20 2021, Jason Gunthorpe <jgg at nvidia.com> wrote:

> Platform simply wants to run some code when the device is first
> opened/last closed. Use the core framework and locking for this.  Aside
> from removing a bit of code this narrows the locking scope from a global
> lock.
>
> Signed-off-by: Yishai Hadas <yishaih at nvidia.com>
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
> ---
>  drivers/vfio/platform/vfio_platform_common.c  | 79 ++++++++-----------
>  drivers/vfio/platform/vfio_platform_private.h |  1 -
>  2 files changed, 32 insertions(+), 48 deletions(-)

Reviewed-by: Cornelia Huck <cohuck at redhat.com>