[Intel-gfx] [PATCH 4/4] drm/i915: Convert execbuf code to use vmas

[Chris Wilson]

On Wed, Aug 14, 2013 at 11:38:36AM +0200, Daniel Vetter wrote:
> From: Ben Widawsky <ben at bwidawsk.net>
> 
> +		vma = i915_gem_obj_lookup_or_create_vma(obj, vm);
> +		if (IS_ERR(vma)) {
> +			/* XXX: We don't need an error path fro vma because if
> +			 * the vma was created just for this execbuf, object
> +			 * unreference should kill it off.*/

The XXX part here is that before the object is finally unreffed we
have a dangling vma and so we need to take care else way not to assume
that a vma is implicitly bound.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre