Re: [PATCH 7/7] drm/i915: GEM operations need to be done under the big lock

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On 11/01/16 14:38, Chris Wilson wrote:
On Mon, Jan 11, 2016 at 02:08:41PM +0000, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

VMA creation and GEM list management need the big lock.

v2:

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.

v3:

Some callers of i915_gem_object_create_stolen_for_preallocated
already hold the lock so move the mutex into the other caller
as well.

intel_pm.c valleyview_setup_pctx?

Already holds it traced by the WARN_ON at its top.

Regards,

Tvrtko
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