[Intel-gfx] [RFC PATCH] drm/i915: Suppress page allocation warnings on engine park

[Janusz Krzysztofik]

On Thu, 2020-04-02 at 11:21 +0100, Chris Wilson wrote:
> Quoting Janusz Krzysztofik (2020-04-02 11:19:06)
> > On memory constrained systems it may happen that no pages are available
> > for serving object creation attempt during engine park.  Since we can
> > and we do ignore that failure, let's suppress possible warnings from
> > page allocator to avoid confusion and make CI happy.
> 
> The effect of ignoring it though is dangerous, hence why I had a
> warning.

Then maybe just WARN() from switch_to_kernel_context() on
__i915_request_create() returning -ENOMEM instead?

Thanks,
Janusz

> -Chris