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authorIngo Molnar <mingo@elte.hu>2008-07-30 10:38:30 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-30 10:38:30 +0200
commit39675e89fb472c1b9c8e740e00acb1df2bbc6be7 (patch)
treecce6814d3e7c62adf59e565fb6ae95fd409f86ab /kernel
parent6e86841d05f371b5b9b86ce76c02aaee83352298 (diff)
parent2c3d103ba90827cfb478bf10464d9b5b9cea369c (diff)
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Merge branch 'sched/urgent' into sched/clock
Diffstat (limited to 'kernel')
-rw-r--r--kernel/Kconfig.hz2
-rw-r--r--kernel/sched.c2
-rw-r--r--kernel/sched_clock.c19
-rw-r--r--kernel/sched_fair.c2
4 files changed, 12 insertions, 13 deletions
diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 382dd5a..94fabd5 100644
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -55,4 +55,4 @@ config HZ
default 1000 if HZ_1000
config SCHED_HRTICK
- def_bool HIGH_RES_TIMERS && USE_GENERIC_SMP_HELPERS
+ def_bool HIGH_RES_TIMERS && (!SMP || USE_GENERIC_SMP_HELPERS)
diff --git a/kernel/sched.c b/kernel/sched.c
index 0236958..0d1717b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -834,7 +834,7 @@ static inline u64 global_rt_period(void)
static inline u64 global_rt_runtime(void)
{
- if (sysctl_sched_rt_period < 0)
+ if (sysctl_sched_rt_runtime < 0)
return RUNTIME_INF;
return (u64)sysctl_sched_rt_runtime * NSEC_PER_USEC;
diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index 22ed55d..5a2dc7d 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -32,6 +32,15 @@
#include <linux/ktime.h>
#include <linux/module.h>
+/*
+ * Scheduler clock - returns current time in nanosec units.
+ * This is default implementation.
+ * Architectures and sub-architectures can override this.
+ */
+unsigned long long __attribute__((weak)) sched_clock(void)
+{
+ return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
+}
#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
@@ -321,16 +330,6 @@ EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);
#endif
-/*
- * Scheduler clock - returns current time in nanosec units.
- * This is default implementation.
- * Architectures and sub-architectures can override this.
- */
-unsigned long long __attribute__((weak)) sched_clock(void)
-{
- return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
-}
-
unsigned long long cpu_clock(int cpu)
{
unsigned long long clock;
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index cf2cd6c..0fe94ea 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -899,7 +899,7 @@ static void hrtick_start_fair(struct rq *rq, struct task_struct *p)
* doesn't make sense. Rely on vruntime for fairness.
*/
if (rq->curr != p)
- delta = max(10000LL, delta);
+ delta = max_t(s64, 10000LL, delta);
hrtick_start(rq, delta);
}