Commit-ID: de1d7286060430e79a1d50ad6e5fee8fe863c5f6 Gitweb: http://git.kernel.org/tip/de1d7286060430e79a1d50ad6e5fee8fe863c5f6 Author: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx> AuthorDate: Tue, 5 May 2009 16:49:59 +0800 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Wed, 6 May 2009 12:15:51 +0200 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@xxxxxxxxxx> [ 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@xxxxxxxxxxxxxx> Cc: fweisbec@xxxxxxxxx Cc: rostedt@xxxxxxxxxxx Cc: Li Zefan <lizf@xxxxxxxxxxxxxx> Cc: zhaolei@xxxxxxxxxxxxxx Cc: laijs@xxxxxxxxxxxxxx LKML-Reference: <49FFFDB7.1050402@xxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- include/trace/events/sched.h | 6 +++--- 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) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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