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authorRafael J. Wysocki <rjw@sisk.pl>2009-12-06 16:06:11 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2009-12-06 16:06:11 +0100
commit64357ed468025614d48daa6cc87674ae5616f8fb (patch)
tree2467c239364d7602755b73203025d329c6f84b22 /kernel/trace/trace_clock.c
parentbe404f0212ffa8f67361f8ee460a25d901d88991 (diff)
parent6ec22f9b037fc0c2e00ddb7023fad279c365324d (diff)
Merge branch 'master' into for-linus
Diffstat (limited to 'kernel/trace/trace_clock.c')
-rw-r--r--kernel/trace/trace_clock.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
index 20c5f92e28a8..878c03f386ba 100644
--- a/kernel/trace/trace_clock.c
+++ b/kernel/trace/trace_clock.c
@@ -20,6 +20,8 @@
#include <linux/ktime.h>
#include <linux/trace_clock.h>
+#include "trace.h"
+
/*
* trace_clock_local(): the simplest and least coherent tracing clock.
*
@@ -28,17 +30,17 @@
*/
u64 notrace trace_clock_local(void)
{
- unsigned long flags;
u64 clock;
+ int resched;
/*
* sched_clock() is an architecture implemented, fast, scalable,
* lockless clock. It is not guaranteed to be coherent across
* CPUs, nor across CPU idle events.
*/
- raw_local_irq_save(flags);
+ resched = ftrace_preempt_disable();
clock = sched_clock();
- raw_local_irq_restore(flags);
+ ftrace_preempt_enable(resched);
return clock;
}