Quoting Chris Wilson (2018-01-24 11:03:49)
> When we finally decide the gpu is idle, that is a good time to shrink
> our kmem_caches.
>
> v3: Defer until an rcu grace period after we idle.
> v4: Think about epoch wraparound and how likely that is.
>
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com> #v3
-Chris
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