Chris Wilson e85ade1f50 drm/i915: Hold reference to intel_frontbuffer as we track activity ... Since obj->frontbuffer is no longer protected by the struct_mutex, as we are processing the execbuf, it may be removed. Mark the intel_frontbuffer as rcu protected, and so acquire a reference to the struct as we track activity upon it. Closes: https://gitlab.freedesktop.org/drm/intel/issues/827 Fixes: 8e7cb1799b ("drm/i915: Extract intel_frontbuffer active tracking") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Cc: <stable@vger.kernel.org> # v5.4+ Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218104043.3539458-1-chris@chris-wilson.co.uk (cherry picked from commit da42104f58) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2019-12-23 14:27:23 +02:00
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drm	drm/i915: Hold reference to intel_frontbuffer as we track activity	2019-12-23 14:27:23 +02:00
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