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Message-ID: <20111129065315.GA15774@linux.vnet.ibm.com> Date: Tue, 29 Nov 2011 12:23:15 +0530 From: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com> To: Shan Hai <haishan.bai@...il.com> Cc: linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu, tglx@...utronix.de Subject: Re: [PATCH 1/1] sched/rt: code cleanup, remove a redundant function call * Shan Hai <haishan.bai@...il.com> [2011-11-29 11:03:56]: > The second time call to sched_rt_period is redundant, because the value of the > rt_runtime was already read and it was protected by the rurt_runtime_lock. > > Signed-off-by: Shan Hai <haishan.bai@...il.com> Reviewed-by: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com> > --- > kernel/sched_rt.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c > index 056cbd2..2171ac8 100644 > --- a/kernel/sched_rt.c > +++ b/kernel/sched_rt.c > @@ -645,7 +645,7 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq) > if (rt_rq->rt_throttled) > return rt_rq_throttled(rt_rq); > > - if (sched_rt_runtime(rt_rq) >= sched_rt_period(rt_rq)) > + if (runtime >= sched_rt_period(rt_rq)) > return 0; > > balance_runtime(rt_rq); > -- > 1.7.4.1 -- 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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