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authorIngo Molnar <mingo@elte.hu>2009-03-13 04:34:09 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-13 04:34:09 +0100
commit2084e0225ed14cc1959c8aa703a3870c95fde4ab (patch)
tree818517eb07b585e981ce81c200294a8ec7a8e992 /kernel/trace/trace_workqueue.c
parent4c6ed8f496fe89ff81b3d6e617a531bedfb613e4 (diff)
parent5cc985488845ec7227a2c5cfd2fd62cf57fb411a (diff)
Merge branch 'tip/tracing/ftrace' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace
Diffstat (limited to 'kernel/trace/trace_workqueue.c')
-rw-r--r--kernel/trace/trace_workqueue.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/kernel/trace/trace_workqueue.c b/kernel/trace/trace_workqueue.c
index fb5ccac8bbc..9ab035b58cf 100644
--- a/kernel/trace/trace_workqueue.c
+++ b/kernel/trace/trace_workqueue.c
@@ -193,12 +193,20 @@ static int workqueue_stat_show(struct seq_file *s, void *p)
struct cpu_workqueue_stats *cws = p;
unsigned long flags;
int cpu = cws->cpu;
- struct task_struct *tsk = find_task_by_vpid(cws->pid);
-
- seq_printf(s, "%3d %6d %6u %s\n", cws->cpu,
- atomic_read(&cws->inserted),
- cws->executed,
- tsk ? tsk->comm : "<...>");
+ struct pid *pid;
+ struct task_struct *tsk;
+
+ pid = find_get_pid(cws->pid);
+ if (pid) {
+ tsk = get_pid_task(pid, PIDTYPE_PID);
+ if (tsk) {
+ seq_printf(s, "%3d %6d %6u %s\n", cws->cpu,
+ atomic_read(&cws->inserted), cws->executed,
+ tsk->comm);
+ put_task_struct(tsk);
+ }
+ put_pid(pid);
+ }
spin_lock_irqsave(&workqueue_cpu_stat(cpu)->lock, flags);
if (&cws->list == workqueue_cpu_stat(cpu)->list.next)