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path: root/kernel/trace/trace_sched_wakeup.c
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Diffstat (limited to 'kernel/trace/trace_sched_wakeup.c')
-rw-r--r--kernel/trace/trace_sched_wakeup.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 3ae93f16b565..7bc4abf6fca8 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -50,8 +50,7 @@ wakeup_tracer_call(unsigned long ip, unsigned long parent_ip)
50 return; 50 return;
51 51
52 pc = preempt_count(); 52 pc = preempt_count();
53 resched = need_resched(); 53 resched = ftrace_preempt_disable();
54 preempt_disable_notrace();
55 54
56 cpu = raw_smp_processor_id(); 55 cpu = raw_smp_processor_id();
57 data = tr->data[cpu]; 56 data = tr->data[cpu];
@@ -81,15 +80,7 @@ wakeup_tracer_call(unsigned long ip, unsigned long parent_ip)
81 out: 80 out:
82 atomic_dec(&data->disabled); 81 atomic_dec(&data->disabled);
83 82
84 /* 83 ftrace_preempt_enable(resched);
85 * To prevent recursion from the scheduler, if the
86 * resched flag was set before we entered, then
87 * don't reschedule.
88 */
89 if (resched)
90 preempt_enable_no_resched_notrace();
91 else
92 preempt_enable_notrace();
93} 84}
94 85
95static struct ftrace_ops trace_ops __read_mostly = 86static struct ftrace_ops trace_ops __read_mostly =