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	perf sched: Remove die() calls
Just use pr_err() + return -1 and perf_session__process_events to abort when some event would call die(), then let the perf's main() exit doing whatever it needs. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-88cwdogxqomsy9tfr8r0as58@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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					 1 changed files with 179 additions and 102 deletions
				
			
		| 
						 | 
				
			
			@ -423,8 +423,8 @@ static int self_open_counters(void)
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	fd = sys_perf_event_open(&attr, 0, -1, -1, 0);
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	if (fd < 0)
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		die("Error: sys_perf_event_open() syscall returned"
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		    "with %d (%s)\n", fd, strerror(errno));
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		pr_debug("Error: sys_perf_event_open() syscall returned"
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			 "with %d (%s)\n", fd, strerror(errno));
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	return fd;
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}
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			@ -450,7 +450,8 @@ static void *thread_func(void *ctx)
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	sprintf(comm2, ":%s", this_task->comm);
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	prctl(PR_SET_NAME, comm2);
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	fd = self_open_counters();
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	if (fd < 0)
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		return NULL;
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again:
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	ret = sem_post(&this_task->ready_for_work);
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	BUG_ON(ret);
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			@ -726,30 +727,30 @@ struct trace_migrate_task_event {
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};
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struct trace_sched_handler {
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	void (*switch_event)(struct trace_switch_event *,
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			     struct machine *,
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			     struct event_format *,
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	int (*switch_event)(struct trace_switch_event *event,
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			    struct machine *machine,
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			    struct event_format *tp_format,
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			    struct perf_sample *sample);
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	int (*runtime_event)(struct trace_runtime_event *event,
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			     struct machine *machine,
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			     struct perf_sample *sample);
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	void (*runtime_event)(struct trace_runtime_event *,
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			      struct machine *,
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			      struct perf_sample *sample);
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	int (*wakeup_event)(struct trace_wakeup_event *event,
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			    struct machine *machine,
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			    struct event_format *tp_format,
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			    struct perf_sample *sample);
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	void (*wakeup_event)(struct trace_wakeup_event *,
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			     struct machine *,
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			     struct event_format *,
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			     struct perf_sample *sample);
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	int (*fork_event)(struct trace_fork_event *event,
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			  struct event_format *tp_format);
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	void (*fork_event)(struct trace_fork_event *,
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			   struct event_format *event);
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	void (*migrate_task_event)(struct trace_migrate_task_event *,
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				   struct machine *machine,
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				   struct perf_sample *sample);
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	int (*migrate_task_event)(struct trace_migrate_task_event *event,
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				  struct machine *machine,
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				  struct perf_sample *sample);
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};
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static void
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static int
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replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
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		    struct machine *machine __used,
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		    struct event_format *event, struct perf_sample *sample)
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			@ -769,11 +770,12 @@ replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
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	wakee = register_pid(wakeup_event->pid, wakeup_event->comm);
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	add_sched_event_wakeup(waker, sample->time, wakee);
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	return 0;
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}
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static u64 cpu_last_switched[MAX_CPUS];
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static void
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static int
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replay_switch_event(struct trace_switch_event *switch_event,
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		    struct machine *machine __used,
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		    struct event_format *event,
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			@ -788,7 +790,7 @@ replay_switch_event(struct trace_switch_event *switch_event,
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		printf("sched_switch event %p\n", event);
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	if (cpu >= MAX_CPUS || cpu < 0)
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		return;
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		return 0;
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	timestamp0 = cpu_last_switched[cpu];
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	if (timestamp0)
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			@ -796,8 +798,10 @@ replay_switch_event(struct trace_switch_event *switch_event,
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	else
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		delta = 0;
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	if (delta < 0)
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		die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
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	if (delta < 0) {
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		pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta);
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		return -1;
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	}
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	if (verbose) {
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		printf(" ... switch from %s/%d to %s/%d [ran %" PRIu64 " nsecs]\n",
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			@ -813,10 +817,12 @@ replay_switch_event(struct trace_switch_event *switch_event,
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	add_sched_event_run(prev, timestamp, delta);
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	add_sched_event_sleep(prev, timestamp, switch_event->prev_state);
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	return 0;
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}
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static void
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static int
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replay_fork_event(struct trace_fork_event *fork_event,
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		  struct event_format *event)
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{
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			@ -827,6 +833,7 @@ replay_fork_event(struct trace_fork_event *fork_event,
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	}
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	register_pid(fork_event->parent_pid, fork_event->parent_comm);
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	register_pid(fork_event->child_pid, fork_event->child_comm);
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	return 0;
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}
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static struct trace_sched_handler replay_ops  = {
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			@ -911,22 +918,26 @@ __thread_latency_insert(struct rb_root *root, struct work_atoms *data,
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	rb_insert_color(&data->node, root);
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}
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static void thread_atoms_insert(struct thread *thread)
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static int thread_atoms_insert(struct thread *thread)
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{
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	struct work_atoms *atoms = zalloc(sizeof(*atoms));
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	if (!atoms)
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		die("No memory");
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	if (!atoms) {
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		pr_err("No memory at %s\n", __func__);
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		return -1;
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	}
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	atoms->thread = thread;
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	INIT_LIST_HEAD(&atoms->work_list);
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	__thread_latency_insert(&atom_root, atoms, &cmp_pid);
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	return 0;
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}
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static void
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static int
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latency_fork_event(struct trace_fork_event *fork_event __used,
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		   struct event_format *event __used)
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{
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	/* should insert the newcomer */
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	return 0;
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}
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__used
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			@ -937,14 +948,16 @@ static char sched_out_state(struct trace_switch_event *switch_event)
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	return str[switch_event->prev_state];
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}
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static void
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static int
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add_sched_out_event(struct work_atoms *atoms,
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		    char run_state,
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		    u64 timestamp)
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{
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	struct work_atom *atom = zalloc(sizeof(*atom));
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	if (!atom)
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		die("Non memory");
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	if (!atom) {
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		pr_err("Non memory at %s", __func__);
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		return -1;
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	}
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	atom->sched_out_time = timestamp;
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			@ -954,6 +967,7 @@ add_sched_out_event(struct work_atoms *atoms,
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	}
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	list_add_tail(&atom->list, &atoms->work_list);
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	return 0;
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}
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static void
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			@ -1000,7 +1014,7 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp)
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	atoms->nb_atoms++;
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}
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static void
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static int
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latency_switch_event(struct trace_switch_event *switch_event,
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		     struct machine *machine,
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		     struct event_format *event __used,
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			@ -1021,38 +1035,49 @@ latency_switch_event(struct trace_switch_event *switch_event,
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	else
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		delta = 0;
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	if (delta < 0)
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		die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
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	if (delta < 0) {
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		pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta);
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		return -1;
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	}
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	sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
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	sched_in = machine__findnew_thread(machine, switch_event->next_pid);
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	out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
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	if (!out_events) {
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		thread_atoms_insert(sched_out);
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		if (thread_atoms_insert(sched_out))
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			return -1;
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		out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
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		if (!out_events)
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			die("out-event: Internal tree error");
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		if (!out_events) {
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			pr_err("out-event: Internal tree error");
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			return -1;
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		}
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	}
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	add_sched_out_event(out_events, sched_out_state(switch_event), timestamp);
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	if (add_sched_out_event(out_events, sched_out_state(switch_event), timestamp))
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		return -1;
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	in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
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	if (!in_events) {
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		thread_atoms_insert(sched_in);
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		if (thread_atoms_insert(sched_in))
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			return -1;
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		in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
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		if (!in_events)
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			die("in-event: Internal tree error");
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		if (!in_events) {
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			pr_err("in-event: Internal tree error");
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			return -1;
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		}
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		/*
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		 * Take came in we have not heard about yet,
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		 * add in an initial atom in runnable state:
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		 */
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		add_sched_out_event(in_events, 'R', timestamp);
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		if (add_sched_out_event(in_events, 'R', timestamp))
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			return -1;
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	}
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	add_sched_in_event(in_events, timestamp);
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	return 0;
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}
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static void
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static int
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latency_runtime_event(struct trace_runtime_event *runtime_event,
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		      struct machine *machine, struct perf_sample *sample)
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{
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			@ -1063,17 +1088,22 @@ latency_runtime_event(struct trace_runtime_event *runtime_event,
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	BUG_ON(cpu >= MAX_CPUS || cpu < 0);
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	if (!atoms) {
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		thread_atoms_insert(thread);
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		if (thread_atoms_insert(thread))
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			return -1;
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		atoms = thread_atoms_search(&atom_root, thread, &cmp_pid);
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		if (!atoms)
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			die("in-event: Internal tree error");
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		add_sched_out_event(atoms, 'R', timestamp);
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		if (!atoms) {
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			pr_debug("in-event: Internal tree error");
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			return -1;
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		}
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		if (add_sched_out_event(atoms, 'R', timestamp))
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			return -1;
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	}
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	add_runtime_event(atoms, runtime_event->runtime, timestamp);
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	return 0;
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}
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static void
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static int
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latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
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		     struct machine *machine, struct event_format *event __used,
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		     struct perf_sample *sample)
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						 | 
				
			
			@ -1085,16 +1115,20 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
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	/* Note for later, it may be interesting to observe the failing cases */
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	if (!wakeup_event->success)
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		return;
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		return 0;
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	wakee = machine__findnew_thread(machine, wakeup_event->pid);
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	atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
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	if (!atoms) {
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		thread_atoms_insert(wakee);
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		if (thread_atoms_insert(wakee))
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			return -1;
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		atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
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		if (!atoms)
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			die("wakeup-event: Internal tree error");
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		add_sched_out_event(atoms, 'S', timestamp);
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		if (!atoms) {
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			pr_debug("wakeup-event: Internal tree error");
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			return -1;
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		}
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		if (add_sched_out_event(atoms, 'S', timestamp))
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			return -1;
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	}
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	BUG_ON(list_empty(&atoms->work_list));
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						 | 
				
			
			@ -1112,14 +1146,15 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
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	nr_timestamps++;
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	if (atom->sched_out_time > timestamp) {
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		nr_unordered_timestamps++;
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		return;
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		return 0;
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	}
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	atom->state = THREAD_WAIT_CPU;
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	atom->wake_up_time = timestamp;
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	return 0;
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}
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static void
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static int
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latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
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			   struct machine *machine, struct perf_sample *sample)
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{
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| 
						 | 
				
			
			@ -1132,17 +1167,21 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
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	 * Only need to worry about migration when profiling one CPU.
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	 */
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	if (profile_cpu == -1)
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		return;
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		return 0;
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	migrant = machine__findnew_thread(machine, migrate_task_event->pid);
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	atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
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	if (!atoms) {
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		thread_atoms_insert(migrant);
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		if (thread_atoms_insert(migrant))
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			return -1;
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		||||
		register_pid(migrant->pid, migrant->comm);
 | 
			
		||||
		atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
 | 
			
		||||
		if (!atoms)
 | 
			
		||||
			die("migration-event: Internal tree error");
 | 
			
		||||
		add_sched_out_event(atoms, 'R', timestamp);
 | 
			
		||||
		if (!atoms) {
 | 
			
		||||
			pr_debug("migration-event: Internal tree error");
 | 
			
		||||
			return -1;
 | 
			
		||||
		}
 | 
			
		||||
		if (add_sched_out_event(atoms, 'R', timestamp))
 | 
			
		||||
			return -1;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	BUG_ON(list_empty(&atoms->work_list));
 | 
			
		||||
| 
						 | 
				
			
			@ -1154,6 +1193,8 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
 | 
			
		|||
 | 
			
		||||
	if (atom->sched_out_time > timestamp)
 | 
			
		||||
		nr_unordered_timestamps++;
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static struct trace_sched_handler lat_ops  = {
 | 
			
		||||
| 
						 | 
				
			
			@ -1328,7 +1369,7 @@ static void sort_lat(void)
 | 
			
		|||
 | 
			
		||||
static struct trace_sched_handler *trace_handler;
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_wakeup_event(struct perf_tool *tool __used,
 | 
			
		||||
			   struct event_format *event,
 | 
			
		||||
			   struct perf_sample *sample,
 | 
			
		||||
| 
						 | 
				
			
			@ -1337,6 +1378,7 @@ process_sched_wakeup_event(struct perf_tool *tool __used,
 | 
			
		|||
{
 | 
			
		||||
	void *data = sample->raw_data;
 | 
			
		||||
	struct trace_wakeup_event wakeup_event;
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	FILL_COMMON_FIELDS(wakeup_event, event, data);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1347,7 +1389,9 @@ process_sched_wakeup_event(struct perf_tool *tool __used,
 | 
			
		|||
	FILL_FIELD(wakeup_event, cpu, event, data);
 | 
			
		||||
 | 
			
		||||
	if (trace_handler->wakeup_event)
 | 
			
		||||
		trace_handler->wakeup_event(&wakeup_event, machine, event, sample);
 | 
			
		||||
		err = trace_handler->wakeup_event(&wakeup_event, machine, event, sample);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
| 
						 | 
				
			
			@ -1363,7 +1407,7 @@ static struct thread *curr_thread[MAX_CPUS];
 | 
			
		|||
static char next_shortname1 = 'A';
 | 
			
		||||
static char next_shortname2 = '0';
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
map_switch_event(struct trace_switch_event *switch_event,
 | 
			
		||||
		 struct machine *machine,
 | 
			
		||||
		 struct event_format *event __used,
 | 
			
		||||
| 
						 | 
				
			
			@ -1387,9 +1431,10 @@ map_switch_event(struct trace_switch_event *switch_event,
 | 
			
		|||
	else
 | 
			
		||||
		delta = 0;
 | 
			
		||||
 | 
			
		||||
	if (delta < 0)
 | 
			
		||||
		die("hm, delta: %" PRIu64 " < 0 ?\n", delta);
 | 
			
		||||
 | 
			
		||||
	if (delta < 0) {
 | 
			
		||||
		pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta);
 | 
			
		||||
		return -1;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
 | 
			
		||||
	sched_in = machine__findnew_thread(machine, switch_event->next_pid);
 | 
			
		||||
| 
						 | 
				
			
			@ -1438,16 +1483,18 @@ map_switch_event(struct trace_switch_event *switch_event,
 | 
			
		|||
	} else {
 | 
			
		||||
		printf("\n");
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_switch_event(struct perf_tool *tool __used,
 | 
			
		||||
			   struct event_format *event,
 | 
			
		||||
			   struct perf_sample *sample,
 | 
			
		||||
			   struct machine *machine,
 | 
			
		||||
			   struct thread *thread __used)
 | 
			
		||||
{
 | 
			
		||||
	int this_cpu = sample->cpu;
 | 
			
		||||
	int this_cpu = sample->cpu, err = 0;
 | 
			
		||||
	void *data = sample->raw_data;
 | 
			
		||||
	struct trace_switch_event switch_event;
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1470,12 +1517,13 @@ process_sched_switch_event(struct perf_tool *tool __used,
 | 
			
		|||
			nr_context_switch_bugs++;
 | 
			
		||||
	}
 | 
			
		||||
	if (trace_handler->switch_event)
 | 
			
		||||
		trace_handler->switch_event(&switch_event, machine, event, sample);
 | 
			
		||||
		err = trace_handler->switch_event(&switch_event, machine, event, sample);
 | 
			
		||||
 | 
			
		||||
	curr_pid[this_cpu] = switch_event.next_pid;
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_runtime_event(struct perf_tool *tool __used,
 | 
			
		||||
			    struct event_format *event,
 | 
			
		||||
			    struct perf_sample *sample,
 | 
			
		||||
| 
						 | 
				
			
			@ -1484,6 +1532,7 @@ process_sched_runtime_event(struct perf_tool *tool __used,
 | 
			
		|||
{
 | 
			
		||||
	void *data = sample->raw_data;
 | 
			
		||||
	struct trace_runtime_event runtime_event;
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	FILL_ARRAY(runtime_event, comm, event, data);
 | 
			
		||||
	FILL_FIELD(runtime_event, pid, event, data);
 | 
			
		||||
| 
						 | 
				
			
			@ -1491,10 +1540,12 @@ process_sched_runtime_event(struct perf_tool *tool __used,
 | 
			
		|||
	FILL_FIELD(runtime_event, vruntime, event, data);
 | 
			
		||||
 | 
			
		||||
	if (trace_handler->runtime_event)
 | 
			
		||||
		trace_handler->runtime_event(&runtime_event, machine, sample);
 | 
			
		||||
		err = trace_handler->runtime_event(&runtime_event, machine, sample);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_fork_event(struct perf_tool *tool __used,
 | 
			
		||||
			 struct event_format *event,
 | 
			
		||||
			 struct perf_sample *sample,
 | 
			
		||||
| 
						 | 
				
			
			@ -1503,6 +1554,7 @@ process_sched_fork_event(struct perf_tool *tool __used,
 | 
			
		|||
{
 | 
			
		||||
	void *data = sample->raw_data;
 | 
			
		||||
	struct trace_fork_event fork_event;
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	FILL_COMMON_FIELDS(fork_event, event, data);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1512,10 +1564,12 @@ process_sched_fork_event(struct perf_tool *tool __used,
 | 
			
		|||
	FILL_FIELD(fork_event, child_pid, event, data);
 | 
			
		||||
 | 
			
		||||
	if (trace_handler->fork_event)
 | 
			
		||||
		trace_handler->fork_event(&fork_event, event);
 | 
			
		||||
		err = trace_handler->fork_event(&fork_event, event);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_exit_event(struct perf_tool *tool __used,
 | 
			
		||||
			 struct event_format *event,
 | 
			
		||||
			 struct perf_sample *sample __used,
 | 
			
		||||
| 
						 | 
				
			
			@ -1524,9 +1578,11 @@ process_sched_exit_event(struct perf_tool *tool __used,
 | 
			
		|||
{
 | 
			
		||||
	if (verbose)
 | 
			
		||||
		printf("sched_exit event %p\n", event);
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void
 | 
			
		||||
static int
 | 
			
		||||
process_sched_migrate_task_event(struct perf_tool *tool __used,
 | 
			
		||||
				 struct event_format *event,
 | 
			
		||||
				 struct perf_sample *sample,
 | 
			
		||||
| 
						 | 
				
			
			@ -1535,6 +1591,7 @@ process_sched_migrate_task_event(struct perf_tool *tool __used,
 | 
			
		|||
{
 | 
			
		||||
	void *data = sample->raw_data;
 | 
			
		||||
	struct trace_migrate_task_event migrate_task_event;
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	FILL_COMMON_FIELDS(migrate_task_event, event, data);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1544,13 +1601,16 @@ process_sched_migrate_task_event(struct perf_tool *tool __used,
 | 
			
		|||
	FILL_FIELD(migrate_task_event, cpu, event, data);
 | 
			
		||||
 | 
			
		||||
	if (trace_handler->migrate_task_event)
 | 
			
		||||
		trace_handler->migrate_task_event(&migrate_task_event, machine, sample);
 | 
			
		||||
		err = trace_handler->migrate_task_event(&migrate_task_event, machine, sample);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
typedef void (*tracepoint_handler)(struct perf_tool *tool, struct event_format *event,
 | 
			
		||||
				   struct perf_sample *sample,
 | 
			
		||||
				   struct machine *machine,
 | 
			
		||||
				   struct thread *thread);
 | 
			
		||||
typedef int (*tracepoint_handler)(struct perf_tool *tool,
 | 
			
		||||
				  struct event_format *tp_format,
 | 
			
		||||
				  struct perf_sample *sample,
 | 
			
		||||
				  struct machine *machine,
 | 
			
		||||
				  struct thread *thread);
 | 
			
		||||
 | 
			
		||||
static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
 | 
			
		||||
						 union perf_event *event __used,
 | 
			
		||||
| 
						 | 
				
			
			@ -1559,6 +1619,7 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
 | 
			
		|||
						 struct machine *machine)
 | 
			
		||||
{
 | 
			
		||||
	struct thread *thread = machine__findnew_thread(machine, sample->pid);
 | 
			
		||||
	int err = 0;
 | 
			
		||||
 | 
			
		||||
	if (thread == NULL) {
 | 
			
		||||
		pr_debug("problem processing %s event, skipping it.\n",
 | 
			
		||||
| 
						 | 
				
			
			@ -1571,10 +1632,10 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __used,
 | 
			
		|||
 | 
			
		||||
	if (evsel->handler.func != NULL) {
 | 
			
		||||
		tracepoint_handler f = evsel->handler.func;
 | 
			
		||||
		f(tool, evsel->tp_format, sample, machine, thread);
 | 
			
		||||
		err = f(tool, evsel->tp_format, sample, machine, thread);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static struct perf_tool perf_sched = {
 | 
			
		||||
| 
						 | 
				
			
			@ -1585,9 +1646,8 @@ static struct perf_tool perf_sched = {
 | 
			
		|||
	.ordered_samples = true,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static void read_events(bool destroy, struct perf_session **psession)
 | 
			
		||||
static int read_events(bool destroy, struct perf_session **psession)
 | 
			
		||||
{
 | 
			
		||||
	int err = -EINVAL;
 | 
			
		||||
	const struct perf_evsel_str_handler handlers[] = {
 | 
			
		||||
		{ "sched:sched_switch",	      process_sched_switch_event, },
 | 
			
		||||
		{ "sched:sched_stat_runtime", process_sched_runtime_event, },
 | 
			
		||||
| 
						 | 
				
			
			@ -1600,16 +1660,20 @@ static void read_events(bool destroy, struct perf_session **psession)
 | 
			
		|||
	struct perf_session *session;
 | 
			
		||||
 | 
			
		||||
	session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_sched);
 | 
			
		||||
	if (session == NULL)
 | 
			
		||||
		die("No Memory");
 | 
			
		||||
	if (session == NULL) {
 | 
			
		||||
		pr_debug("No Memory for session\n");
 | 
			
		||||
		return -1;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	err = perf_session__set_tracepoints_handlers(session, handlers);
 | 
			
		||||
	assert(err == 0);
 | 
			
		||||
	if (perf_session__set_tracepoints_handlers(session, handlers))
 | 
			
		||||
		goto out_delete;
 | 
			
		||||
 | 
			
		||||
	if (perf_session__has_traces(session, "record -R")) {
 | 
			
		||||
		err = perf_session__process_events(session, &perf_sched);
 | 
			
		||||
		if (err)
 | 
			
		||||
			die("Failed to process events, error %d", err);
 | 
			
		||||
		int err = perf_session__process_events(session, &perf_sched);
 | 
			
		||||
		if (err) {
 | 
			
		||||
			pr_err("Failed to process events, error %d", err);
 | 
			
		||||
			goto out_delete;
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		nr_events      = session->hists.stats.nr_events[0];
 | 
			
		||||
		nr_lost_events = session->hists.stats.total_lost;
 | 
			
		||||
| 
						 | 
				
			
			@ -1621,6 +1685,12 @@ static void read_events(bool destroy, struct perf_session **psession)
 | 
			
		|||
 | 
			
		||||
	if (psession)
 | 
			
		||||
		*psession = session;
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
 | 
			
		||||
out_delete:
 | 
			
		||||
	perf_session__delete(session);
 | 
			
		||||
	return -1;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void print_bad_events(void)
 | 
			
		||||
| 
						 | 
				
			
			@ -1653,13 +1723,14 @@ static void print_bad_events(void)
 | 
			
		|||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void __cmd_lat(void)
 | 
			
		||||
static int __cmd_lat(void)
 | 
			
		||||
{
 | 
			
		||||
	struct rb_node *next;
 | 
			
		||||
	struct perf_session *session;
 | 
			
		||||
 | 
			
		||||
	setup_pager();
 | 
			
		||||
	read_events(false, &session);
 | 
			
		||||
	if (read_events(false, &session))
 | 
			
		||||
		return -1;
 | 
			
		||||
	sort_lat();
 | 
			
		||||
 | 
			
		||||
	printf("\n ---------------------------------------------------------------------------------------------------------------\n");
 | 
			
		||||
| 
						 | 
				
			
			@ -1686,6 +1757,7 @@ static void __cmd_lat(void)
 | 
			
		|||
	printf("\n");
 | 
			
		||||
 | 
			
		||||
	perf_session__delete(session);
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static struct trace_sched_handler map_ops  = {
 | 
			
		||||
| 
						 | 
				
			
			@ -1695,16 +1767,18 @@ static struct trace_sched_handler map_ops  = {
 | 
			
		|||
	.fork_event		= NULL,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static void __cmd_map(void)
 | 
			
		||||
static int __cmd_map(void)
 | 
			
		||||
{
 | 
			
		||||
	max_cpu = sysconf(_SC_NPROCESSORS_CONF);
 | 
			
		||||
 | 
			
		||||
	setup_pager();
 | 
			
		||||
	read_events(true, NULL);
 | 
			
		||||
	if (read_events(true, NULL))
 | 
			
		||||
		return -1;
 | 
			
		||||
	print_bad_events();
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void __cmd_replay(void)
 | 
			
		||||
static int __cmd_replay(void)
 | 
			
		||||
{
 | 
			
		||||
	unsigned long i;
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1713,7 +1787,8 @@ static void __cmd_replay(void)
 | 
			
		|||
 | 
			
		||||
	test_calibrations();
 | 
			
		||||
 | 
			
		||||
	read_events(true, NULL);
 | 
			
		||||
	if (read_events(true, NULL))
 | 
			
		||||
		return -1;
 | 
			
		||||
 | 
			
		||||
	printf("nr_run_events:        %ld\n", nr_run_events);
 | 
			
		||||
	printf("nr_sleep_events:      %ld\n", nr_sleep_events);
 | 
			
		||||
| 
						 | 
				
			
			@ -1734,6 +1809,8 @@ static void __cmd_replay(void)
 | 
			
		|||
	printf("------------------------------------------------------------\n");
 | 
			
		||||
	for (i = 0; i < replay_repeat; i++)
 | 
			
		||||
		run_one_test();
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -1865,11 +1942,11 @@ int cmd_sched(int argc, const char **argv, const char *prefix __used)
 | 
			
		|||
				usage_with_options(latency_usage, latency_options);
 | 
			
		||||
		}
 | 
			
		||||
		setup_sorting();
 | 
			
		||||
		__cmd_lat();
 | 
			
		||||
		return __cmd_lat();
 | 
			
		||||
	} else if (!strcmp(argv[0], "map")) {
 | 
			
		||||
		trace_handler = &map_ops;
 | 
			
		||||
		setup_sorting();
 | 
			
		||||
		__cmd_map();
 | 
			
		||||
		return __cmd_map();
 | 
			
		||||
	} else if (!strncmp(argv[0], "rep", 3)) {
 | 
			
		||||
		trace_handler = &replay_ops;
 | 
			
		||||
		if (argc) {
 | 
			
		||||
| 
						 | 
				
			
			@ -1877,7 +1954,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __used)
 | 
			
		|||
			if (argc)
 | 
			
		||||
				usage_with_options(replay_usage, replay_options);
 | 
			
		||||
		}
 | 
			
		||||
		__cmd_replay();
 | 
			
		||||
		return __cmd_replay();
 | 
			
		||||
	} else {
 | 
			
		||||
		usage_with_options(sched_usage, sched_options);
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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		Reference in a new issue