[Intel-gfx] [PATCH 3/3] drm/i915: Ratelimit request allocation under oom

[Chris Wilson]

Quoting Joonas Lahtinen (2017-12-13 11:18:42)
> On Tue, 2017-12-12 at 18:06 +0000, Chris Wilson wrote:
> > If we fail to allocate a request, we can reap the outstanding requests
> > and push them to the request's slab's freelist before trying again. This
> > forces us to ratelimit malicious clients that tie up all of the system
> > resources in requests, instead of causing a system-wide oom.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> 
> Maybe throw a Testcase: here?

Testcase: igt/gem_shrink/execbuf1
-Chris