Re: [Xen-devel] [PATCH 1/2] xen/gntdev: Do not destroy context while dma-bufs are in use

[Oleksandr Andrushchenko <andr2000@xxxxxxxxx>]

On 2/15/19 5:28 PM, Boris Ostrovsky wrote:
> On 2/15/19 10:07 AM, Oleksandr Andrushchenko wrote:
> > On 2/15/19 5:03 PM, Boris Ostrovsky wrote:
> > > On 2/14/19 9:23 AM, Oleksandr Andrushchenko wrote:
> > > >      /* DMA buffer export support. */
> > > > @@ -311,6 +317,7 @@ static void dmabuf_exp_release(struct kref *kref)
> > > >          dmabuf_exp_wait_obj_signal(gntdev_dmabuf->priv, gntdev_dmabuf);
> > > >        list_del(&gntdev_dmabuf->next);
> > > > +    fput(gntdev_dmabuf->priv->filp);
> > > >        kfree(gntdev_dmabuf);
> > > >    }
> > > >    @@ -423,6 +430,7 @@ static int dmabuf_exp_from_pages(struct
> > > > gntdev_dmabuf_export_args *args)
> > > >        mutex_lock(&args->dmabuf_priv->lock);
> > > >        list_add(&gntdev_dmabuf->next, &args->dmabuf_priv->exp_list);
> > > >        mutex_unlock(&args->dmabuf_priv->lock);
> > > > +    get_file(gntdev_dmabuf->priv->filp);
> > > Not fget()?
> > fget wants file descriptor [1] and returns struct file *,
> > but we already have struct file*, so I use get_file [2]
> > which does what I need - increments the reference counter
> > on the file
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Thank you,
any chance we can get this for 5.1?

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