On Fri, Apr 10, 2015 at 11:14:56AM +0200, Daniel Vetter wrote:
> On Tue, Apr 7, 2015 at 6:28 PM, Chris Wilson <ch...@chris-wilson.co.uk> wrote:
> > /* Pinned buffers may be scanout, so flush the cache */
> > - if (obj->pin_display)
> > + if (obj->pin_display) {
> > + ret = i915_mutex_lock_interruptible(dev);
> > + if (ret)
> > + goto unref;
>
> I think and ACCESS_ONCE here and in the previous one would be good.
> Wanted to do that and merge both, but they seem to conflict with the
> lack of read-read ...
What do you want to accomplish with ACCESS_ONCE()? Unfortunately as we
can't use it on bitfields.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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