diff options
| author | Ingo Molnar <mingo@kernel.org> | 2018-07-25 11:29:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-07-25 11:29:58 +0200 |
| commit | 4765096f4f7829d933354ddffedfad32cf063467 (patch) | |
| tree | e8ab2bfc2062324911de12d034f5d4f222c480b6 /kernel/sched/deadline.c | |
| parent | sched/core: Remove get_cpu() from sched_fork() (diff) | |
| parent | sched/rt: Restore rt_runtime after disabling RT_RUNTIME_SHARE (diff) | |
| download | linux-4765096f4f7829d933354ddffedfad32cf063467.tar.xz linux-4765096f4f7829d933354ddffedfad32cf063467.zip | |
Merge branch 'sched/urgent' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/deadline.c')
| -rw-r--r-- | kernel/sched/deadline.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 68b8a9f1c9ca..997ea7b839fa 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -2094,8 +2094,14 @@ retry: sub_rq_bw(&next_task->dl, &rq->dl); set_task_cpu(next_task, later_rq->cpu); add_rq_bw(&next_task->dl, &later_rq->dl); + + /* + * Update the later_rq clock here, because the clock is used + * by the cpufreq_update_util() inside __add_running_bw(). + */ + update_rq_clock(later_rq); add_running_bw(&next_task->dl, &later_rq->dl); - activate_task(later_rq, next_task, 0); + activate_task(later_rq, next_task, ENQUEUE_NOCLOCK); ret = 1; resched_curr(later_rq); @@ -2294,8 +2300,17 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p) if (task_on_rq_queued(p) && p->dl.dl_runtime) task_non_contending(p); - if (!task_on_rq_queued(p)) + if (!task_on_rq_queued(p)) { + /* + * Inactive timer is armed. However, p is leaving DEADLINE and + * might migrate away from this rq while continuing to run on + * some other class. We need to remove its contribution from + * this rq running_bw now, or sub_rq_bw (below) will complain. + */ + if (p->dl.dl_non_contending) + sub_running_bw(&p->dl, &rq->dl); sub_rq_bw(&p->dl, &rq->dl); + } /* * We cannot use inactive_task_timer() to invoke sub_running_bw() |