From: Tvrtko Ursulin <[email protected]> Purpose is catching illegal callers.
v2: Replace WARN_ON with lockdep_assert_held. (Chris Wilson, Daniel Vetter) v3: Moved under dedicated CONFIG_DRM_I915_DEBUG and back to WARN_ON. Signed-off-by: Tvrtko Ursulin <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_drv.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4ad025210416..6d34f74a5919 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2933,6 +2933,9 @@ i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n); static inline struct page * i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n) { +#ifdef CONFIG_DRM_I915_DEBUG + WARN_ON_ONCE(!mutex_is_locked(&obj->base.dev->struct_mutex)); +#endif if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT)) return NULL; -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
