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Commit 2f63b840 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Ingo Molnar
Browse files

trace_workqueues: fix empty line's output 



Empty lines separate cpus stat. After previous
fix(trace_stat: keep original order) applied, the empty lines
are displayed at incorrect position.

Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: default avatarSteven Rostedt <srostedt@redhat.com>
Acked-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <49C9F266.2060706@cn.fujitsu.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 220ba351

kernel/trace/trace_workqueue.c

+6 −6
Original line number Diff line number Diff line
@@ -196,6 +196,11 @@ static int workqueue_stat_show(struct seq_file *s, void *p) 
	struct pid *pid;

	struct task_struct *tsk;



	spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags);

	if (&cws->list == workqueue_cpu_stat(cpu)->list.next)

		seq_printf(s, "\n");

	spin_unlock_irqrestore(&workqueue_cpu_stat(cpu)->lock, flags);



	pid = find_get_pid(cws->pid);

	if (pid) {

		tsk = get_pid_task(pid, PIDTYPE_PID);
@@ -208,18 +213,13 @@ static int workqueue_stat_show(struct seq_file *s, void *p) 
		put_pid(pid);

	}



	spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags);

	if (&cws->list == workqueue_cpu_stat(cpu)->list.next)

		seq_printf(s, "\n");

	spin_unlock_irqrestore(&workqueue_cpu_stat(cpu)->lock, flags);



	return 0;

}



static int workqueue_stat_headers(struct seq_file *s)

{

	seq_printf(s, "# CPU  INSERTED  EXECUTED   NAME\n");

	seq_printf(s, "# |      |         |          |\n\n");

	seq_printf(s, "# |      |         |          |\n");

	return 0;

}