diff options
| -rw-r--r-- | kernel/sched_fair.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index c9fbe8e73a4..67c67a87146 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -639,6 +639,16 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) se->block_start = 0; se->sum_sleep_runtime += delta; + + /* + * Blocking time is in units of nanosecs, so shift by 20 to + * get a milliseconds-range estimation of the amount of + * time that the task spent sleeping: + */ + if (unlikely(prof_on == SLEEP_PROFILING)) { + profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk), + delta >> 20); + } } #endif } |