linux-kernel - Re: [PATCH] Documentation/gpu: drm-mm.rst: fix formatting for struct vm_operations_struct

Open Source and information security mailing list archives

Date:   Tue, 31 Jan 2017 21:11:20 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Liviu Dudau <Liviu.Dudau@....com>
Cc:     David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Jonathan Corbet <corbet@....net>,
        LKML <linux-kernel@...r.kernel.org>,
        DRI devel <dri-devel@...ts.freedesktop.org>,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH] Documentation/gpu: drm-mm.rst: fix formatting for struct
 vm_operations_struct

On Tue, Jan 31, 2017 at 05:41:09PM +0000, Liviu Dudau wrote:
> drm-mm.rst contains some unformatted dump of the vm_operations_struct
> structure. Add some C formatting around it and some context for the
> dump. While there, update the structure to resemble the new signature
> for the fault handler after commit 25d3db7600b8 (mm, fs: reduce fault,
> page_mkwrite, and pfn_mkwrite to take only vmf).
> 
> Signed-off-by: Liviu Dudau <liviu.dudau@....com>

Applied, thanks.
-Daniel

> ---
>  Documentation/gpu/drm-mm.rst | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
> index 91d82f39fbf4..a1c0ae3b2c38 100644
> --- a/Documentation/gpu/drm-mm.rst
> +++ b/Documentation/gpu/drm-mm.rst
> @@ -291,10 +291,17 @@ To use :c:func:`drm_gem_mmap()`, drivers must fill the struct
>  :c:type:`struct drm_driver <drm_driver>` gem_vm_ops field
>  with a pointer to VM operations.
>  
> -struct vm_operations_struct \*gem_vm_ops struct
> -vm_operations_struct { void (\*open)(struct vm_area_struct \* area);
> -void (\*close)(struct vm_area_struct \* area); int (\*fault)(struct
> -vm_area_struct \*vma, struct vm_fault \*vmf); };
> +The VM operations is a :c:type:`struct vm_operations_struct <vm_operations_struct>`
> +made up of several fields, the more interesting ones being:
> +
> +.. code-block:: c
> +
> +	struct vm_operations_struct {
> +		void (*open)(struct vm_area_struct * area);
> +		void (*close)(struct vm_area_struct * area);
> +		int (*fault)(struct vm_fault *vmf);
> +	};
> +
>  
>  The open and close operations must update the GEM object reference
>  count. Drivers can use the :c:func:`drm_gem_vm_open()` and
> -- 
> 2.11.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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