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-rw-r--r--kernel/sched/deadline.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index c75d1307d86d..9bedd148f007 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1804,8 +1804,13 @@ static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags)
* The replenish timer needs to be canceled. No
* problem if it fires concurrently: boosted threads
* are ignored in dl_task_timer().
+ *
+ * If the timer callback was running (hrtimer_try_to_cancel == -1),
+ * it will eventually call put_task_struct().
*/
- hrtimer_try_to_cancel(&p->dl.dl_timer);
+ if (hrtimer_try_to_cancel(&p->dl.dl_timer) == 1 &&
+ !dl_server(&p->dl))
+ put_task_struct(p);
p->dl.dl_throttled = 0;
}
} else if (!dl_prio(p->normal_prio)) {