TRACE_GRAPH_DEPTH_START_BIT  602 kernel/trace/trace.h 	(((current)->trace_recursion >> TRACE_GRAPH_DEPTH_START_BIT) & 3)
TRACE_GRAPH_DEPTH_START_BIT  606 kernel/trace/trace.h 			~(3 << TRACE_GRAPH_DEPTH_START_BIT);		\
TRACE_GRAPH_DEPTH_START_BIT  608 kernel/trace/trace.h 			((depth) & 3) << TRACE_GRAPH_DEPTH_START_BIT;	\