[MINOR] sched: permit a task to stay up between calls
If a task wants to stay in the run queue, it is possible. It just
needs to wake itself up. We just want to ensure that a reniced
task will be processed at the right instant.
diff --git a/src/task.c b/src/task.c
index 17d825e..72e3a93 100644
--- a/src/task.c
+++ b/src/task.c
@@ -225,6 +225,13 @@
task_queue(t);
expire = tick_first_2nz(expire, t->expire);
}
+
+ /* if the task has put itself back into the run queue, we want to ensure
+ * it will be served at the proper time, especially if it's reniced.
+ */
+ if (unlikely(task_in_rq(t)) && (!eb || tick_is_lt(t->rq.key, eb->key))) {
+ eb = eb32_lookup_ge(&rqueue, rqueue_ticks - TIMER_LOOK_BACK);
+ }
}
}
*next = expire;