Chris Wilson 8221d21b06 drm/i915/selftests: Lock the drm_mm while modifying
Remember to lock the drm_mm as we modify it, lest it be modified in the
background by retire/free workers!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703091726.11690-2-chris@chris-wilson.co.uk
2019-07-03 11:07:57 +01:00
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