kernel/drivers/gpu/drm/i915/i915_irq.c
.. .. @@ -1025,6 +1025,7 @@ 1025 1025 spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); 1026 1026 1027 1027 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1028 + preempt_disable_rt();1028 1029 1029 1030 /* Get optional system timestamp before query. */ 1030 1031 if (stime) .. .. @@ -1076,6 +1077,7 @@ 1076 1077 *etime = ktime_get(); 1077 1078 1078 1079 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1080 + preempt_enable_rt();1079 1081 1080 1082 spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); 1081 1083