[Intel-gfx] [PATCH 1/4] drm/i915: Take the handle idr spinlock once for looking up the exec objects

[Eric Anholt]

Chris Wilson <chris at chris-wilson.co.uk> writes:

> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Wouldn't we be able to get rid of the whole eb hash table if we just
made the idr be protected by a proper mutex that we could hold across
the relocation process?  Seems like that would be way better from an
execution cost and cache perspective.

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