Re: [PATCH 02/26] drm/i915: Skip shrinking already freed pages

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Quoting Chris Wilson (2019-06-18 08:41:29)
> Previously, we want to shrink the pages of freed objects before they
> were RCU collected. However, by removing the struct_mutex serialisation
> around the active reference, we need to acquire an extra reference
> around the wait. Unfortunately this means that we have to skip objects
> that are waiting RCU collection.
> 
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110937
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris
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