linux-kernel - Re: [Xen-devel][PATCH 2/2] xen/gntdev: Check and release imported dma-bufs on close

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Date:   Fri, 15 Feb 2019 10:06:31 -0500
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Oleksandr Andrushchenko <andr2000@...il.com>,
        xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
        jgross@...e.com
Cc:     Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
Subject: Re: [Xen-devel][PATCH 2/2] xen/gntdev: Check and release imported
 dma-bufs on close

On 2/14/19 9:23 AM, Oleksandr Andrushchenko wrote:
> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
>
> Check if there are any imported dma-bufs left not released by
> user-space when grant device's release callback is called and
> free those if this is the case. This can happen if user-space
> leaks the buffers because of a bug or application has been
> terminated for any reason.
>
> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>

Reviewed-by: Boris Ostrovsky@...cle.com>