tracing: Convert more sched events to DEFINE_EVENT (210f7669) · Commits · 戴 / test

Convert sched_wait_task to DEFINE_EVENT, and save ~1K: text data bss dec hex filename 104595 9424 4992 119011 1d0e3 kernel/sched.o.orig 103619 9344 4992 117955 1ccc3 kernel/sched.o No change in functionality. Signed-off-by:

Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4BFA3787.2040800@cn.fujitsu.com> Signed-off-by:

Steven Rostedt <rostedt@goodmis.org>

include/trace/events/sched.h

+7 −25

Original line number	Diff line number	Diff line
		@@ -49,31 +49,6 @@ TRACE_EVENT(sched_kthread_stop_ret,
		TP_printk("ret=%d", __entry->ret)
		);

		/*
		* Tracepoint for waiting on task to unschedule:
		*/
		TRACE_EVENT(sched_wait_task,

		TP_PROTO(struct task_struct *p),

		TP_ARGS(p),

		TP_STRUCT__entry(
		__array( char, comm, TASK_COMM_LEN )
		__field( pid_t, pid )
		__field( int, prio )
		),

		TP_fast_assign(
		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
		__entry->pid = p->pid;
		__entry->prio = p->prio;
		),

		TP_printk("comm=%s pid=%d prio=%d",
		__entry->comm, __entry->pid, __entry->prio)
		);

		/*
		* Tracepoint for waking up a task:
		*/
		@@ -239,6 +214,13 @@ DEFINE_EVENT(sched_process_template, sched_process_exit,
		TP_PROTO(struct task_struct *p),
		TP_ARGS(p));

		/*
		* Tracepoint for waiting on task to unschedule:
		*/
		DEFINE_EVENT(sched_process_template, sched_wait_task,
		TP_PROTO(struct task_struct *p),
		TP_ARGS(p));

		/*
		* Tracepoint for a waiting task:
		*/

Admin message