Re: [PATCH v2] drm/i915: Recover batch pool caches from shrinker

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On Sun, 16 Sep 2018 at 21:59, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>
> Discard all of our batch pools under mempressure to make their pages
> available to the shrinker. We will quickly reacquire them when necessary
> for more GPU relocations or for the command parser.
>
> v2: Init the lists for mock_engine
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107936
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

What stops shrink_caches being called while we have a batch pool
object with its pages still pinned, like in the middle of
__reloc_gpu_alloc? Maybe I'm missing something...
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