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Date: Tue, 12 Feb 2013 01:40:04 +0400 From: Kirill Tkhai <tkhai@...dex.ru> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Cc: Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>, linux-rt-users <linux-rt-users@...r.kernel.org> Subject: [PATCH]sched/stop_task: Do not account zero delta_exec in put_prev_task_stop Simple return Signed-off-by: Kirill V Tkhai <tkhai@...dex.ru> CC: Steven Rostedt <rostedt@...dmis.org> CC: Ingo Molnar <mingo@...nel.org> CC: Peter Zijlstra <peterz@...radead.org> CC: linux-rt-users <linux-rt-users@...r.kernel.org> --- kernel/sched/stop_task.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c index da5eb5b..78d0458 100644 --- a/kernel/sched/stop_task.c +++ b/kernel/sched/stop_task.c @@ -58,8 +58,8 @@ static void put_prev_task_stop(struct rq *rq, struct task_struct *prev) u64 delta_exec; delta_exec = rq->clock_task - curr->se.exec_start; - if (unlikely((s64)delta_exec < 0)) - delta_exec = 0; + if (unlikely((s64)delta_exec <= 0)) + return; schedstat_set(curr->se.statistics.exec_max, max(curr->se.statistics.exec_max, delta_exec)); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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