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| author | Ron <ron@voicetronix.com> | 2009-05-08 22:54:49 +0930 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-09 10:08:19 +0200 |
| commit | 92d23f703c608fcb2c8edd74a3fd0f4031e18606 (patch) | |
| tree | ecd2e7f94fea20188eb75cabbcd48a7f7ab79dbc /kernel | |
| parent | 091bf7624d1c90cec9e578a18529f615213ff847 (diff) | |
| download | lwn-92d23f703c608fcb2c8edd74a3fd0f4031e18606.tar.gz lwn-92d23f703c608fcb2c8edd74a3fd0f4031e18606.zip | |
sched: Fix fallback sched_clock()'s offset when using jiffies
Account for the initial offset to the jiffy count.
[ Impact: fix printk timestamps on architectures using fallback sched_clock() ]
Signed-off-by: Ron Lee <ron@debian.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | 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 819f17ac796e..e1d16c9a7680 100644 --- a/kernel/sched_clock.c +++ b/kernel/sched_clock.c @@ -38,7 +38,8 @@ */ 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; |