[PATCH] fix for sched_clock() when using jiffies

From: Ron
Date: Fri May 08 2009 - 16:40:30 EST



Account for the initial offset to the jiffy count.

Signed-off-by: Ron Lee <ron@xxxxxxxxxx>

---
kernel/sched_clock.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/sched_clock.c b/kernel/sched_clock.c
index a0b0852..a1567b1 100644
--- a/kernel/sched_clock.c
+++ b/kernel/sched_clock.c
@@ -37,7 +37,8 @@
*/
unsigned long long __attribute__((weak)) sched_clock(void)
{
- return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
+ return (unsigned long long)(jiffies - INITIAL_JIFFIES)
+ * (NSEC_PER_SEC / HZ);
}

static __read_mostly int sched_clock_running;
--
1.6.1.3

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