drm: unexport drm_global_mutex
Drivers really, really have no business even looking at this lock. And
thankfully they don't.
So unexport it and move the declaration to drm_internal.h.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index a71cf4b..d6dc755 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -25,6 +25,7 @@
extern unsigned int drm_timestamp_monotonic;
/* drm_fops.c */
+extern struct mutex drm_global_mutex;
int drm_lastclose(struct drm_device *dev);
/* drm_pci.c */