[Intel-gfx] [PATCH 7/7] drm/i915: GEM operations need to be done under the big lock
chris at chris-wilson.co.uk
Mon Jan 11 06:38:00 PST 2016
On Mon, Jan 11, 2016 at 02:08:41PM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> VMA creation and GEM list management need the big lock.
> Mutex unlock ended on the wrong path somehow. (0-day, Julia Lawall)
> Not to mention drm_gem_object_unreference was there in existing
> code with no mutex held.
> Some callers of i915_gem_object_create_stolen_for_preallocated
> already hold the lock so move the mutex into the other caller
> as well.
Chris Wilson, Intel Open Source Technology Centre
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