rctxp             603 include/linux/trace_events.h void *perf_trace_buf_alloc(int size, struct pt_regs **regs, int *rctxp);
rctxp             390 kernel/trace/trace_event_perf.c void *perf_trace_buf_alloc(int size, struct pt_regs **regs, int *rctxp)
rctxp             401 kernel/trace/trace_event_perf.c 	*rctxp = rctx = perf_swevent_get_recursion_context();