Re: [RFC PATCH 1/1] smp: Add tracepoints for functions called with smp_call_function*()
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2023-05-04 13:34:47
Also in:
lkml
On Thu, 04 May 2023 12:59:41 +0100 Valentin Schneider [off-list ref] wrote:
+TRACE_EVENT(csd_queue_cpu, + + TP_PROTO(const unsigned int cpu,
Why the "const" ? -- Steve
+ unsigned long callsite,
+ smp_call_func_t func,
+ call_single_data_t *csd),
+
+ TP_ARGS(cpu, callsite, func, csd),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, cpu)
+ __field(void *, callsite)
+ __field(void *, func)
+ __field(void *, csd)
+ ),
+
+ TP_fast_assign(
+ __entry->cpu = cpu;
+ __entry->callsite = (void *)callsite;
+ __entry->func = func;
+ __entry->csd = csd;
+ ),
+
+ TP_printk("cpu=%u callsite=%pS func=%pS csd=%p",
+ __entry->cpu, __entry->callsite, __entry->func, __entry->csd)
+);
+