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authorLinus Torvalds <torvalds@linux-foundation.org>2008-09-19 16:17:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-09-19 16:17:12 -0700
commitb4df9d88a62c6db4cee0d96507a27527bf205dde (patch)
treeebd97fe13e070bff1f5b24d3de8b26ad3b7cf056
parent902f2ac9da7975a5a04fc835860f2a7096c481d3 (diff)
parentec5d498991e87c74730509508b25c3959192b7e7 (diff)
downloadlinux-b4df9d88a62c6db4cee0d96507a27527bf205dde.tar.gz
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: fix deadlock in setting scheduler parameter to zero sched: fix 2.6.27-rc5 couldn't boot on tulsa machine randomly
-rw-r--r--kernel/sched.c6
-rw-r--r--kernel/sched_rt.c1
2 files changed, 7 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index cc1f81b50b8..98890807375 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -8909,6 +8909,9 @@ static int sched_rt_global_constraints(void)
u64 rt_runtime, rt_period;
int ret = 0;
+ if (sysctl_sched_rt_period <= 0)
+ return -EINVAL;
+
rt_period = ktime_to_ns(tg->rt_bandwidth.rt_period);
rt_runtime = tg->rt_bandwidth.rt_runtime;
@@ -8925,6 +8928,9 @@ static int sched_rt_global_constraints(void)
unsigned long flags;
int i;
+ if (sysctl_sched_rt_period <= 0)
+ return -EINVAL;
+
spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
for_each_possible_cpu(i) {
struct rt_rq *rt_rq = &cpu_rq(i)->rt;
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 552310798da..1113157b205 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -350,6 +350,7 @@ static void __enable_runtime(struct rq *rq)
spin_lock(&rt_rq->rt_runtime_lock);
rt_rq->rt_runtime = rt_b->rt_runtime;
rt_rq->rt_time = 0;
+ rt_rq->rt_throttled = 0;
spin_unlock(&rt_rq->rt_runtime_lock);
spin_unlock(&rt_b->rt_runtime_lock);
}