sched: Make task->start_time nanoseconds based

Simplify the timespec to nsec/usec conversions.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 67678fa76f99..10c6e829927f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1367,7 +1367,7 @@ struct task_struct {
         } vtime_snap_whence;
 #endif
         unsigned long nvcsw, nivcsw; /* context switch counts */
-        struct timespec start_time;             /* monotonic time */
+        u64 start_time;         /* monotonic time in nsec */
         u64 real_start_time;    /* boot based time in nsec */
 /* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */
         unsigned long min_flt, maj_flt;