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| author | Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> | 2009-05-05 16:49:59 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-06 12:15:51 +0200 |
| commit | de1d7286060430e79a1d50ad6e5fee8fe863c5f6 (patch) | |
| tree | 0d3ebef66d5d4634bc1d4fee501a8a309e5aa874 | |
| parent | 20c8928abe70e204bd077ab6cfe23002d7788983 (diff) | |
| download | op-kernel-dev-de1d7286060430e79a1d50ad6e5fee8fe863c5f6.zip op-kernel-dev-de1d7286060430e79a1d50ad6e5fee8fe863c5f6.tar.gz | |
tracepoint: trace_sched_migrate_task(): remove parameter
The orig_cpu parameter in trace_sched_migrate_task() is not necessary,
it can be got by using task_cpu(p) in the probe.
[ Impact: micro-optimization ]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
[ modified from Mathieu's patch. The original patch is at:
http://marc.info/?l=linux-kernel&m=123791201716239&w=2 ]
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: zhaolei@cn.fujitsu.com
Cc: laijs@cn.fujitsu.com
LKML-Reference: <49FFFDB7.1050402@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | include/trace/events/sched.h | 6 | ||||
| -rw-r--r-- | kernel/sched.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index ffa1cab..dd4033c 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -180,9 +180,9 @@ TRACE_EVENT(sched_switch, */ TRACE_EVENT(sched_migrate_task, - TP_PROTO(struct task_struct *p, int orig_cpu, int dest_cpu), + TP_PROTO(struct task_struct *p, int dest_cpu), - TP_ARGS(p, orig_cpu, dest_cpu), + TP_ARGS(p, dest_cpu), TP_STRUCT__entry( __array( char, comm, TASK_COMM_LEN ) @@ -196,7 +196,7 @@ TRACE_EVENT(sched_migrate_task, memcpy(__entry->comm, p->comm, TASK_COMM_LEN); __entry->pid = p->pid; __entry->prio = p->prio; - __entry->orig_cpu = orig_cpu; + __entry->orig_cpu = task_cpu(p); __entry->dest_cpu = dest_cpu; ), diff --git a/kernel/sched.c b/kernel/sched.c index 9f7ffd0..9cdedbd 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1954,7 +1954,7 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) clock_offset = old_rq->clock - new_rq->clock; - trace_sched_migrate_task(p, task_cpu(p), new_cpu); + trace_sched_migrate_task(p, new_cpu); #ifdef CONFIG_SCHEDSTATS if (p->se.wait_start) |
