Update comments to ease RT throttling understanding.
Signed-off-by: Michal Koutný <mkoutny@xxxxxxxx>
---
kernel/sched/sched.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d8d28c3d1ac5f..5c32c23915810 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -812,17 +812,17 @@ struct rt_rq {
#ifdef CONFIG_RT_GROUP_SCHED
int rt_throttled;
- u64 rt_time;
- u64 rt_runtime;
+ u64 rt_time; /* consumed RT time, goes up in update_curr_rt */
+ u64 rt_runtime; /* allotted RT time, "slice" from rt_bandwidth, RT sharing/balancing */
/* Nests inside the rq lock: */
raw_spinlock_t rt_runtime_lock;
unsigned int rt_nr_boosted;
- struct rq *rq;
+ struct rq *rq; /* this is always top-level rq, cache? */
#endif
#ifdef CONFIG_CGROUP_SCHED
- struct task_group *tg;
+ struct task_group *tg; /* this tg has "this" rt_rq on given CPU for runnable entities */
#endif
};
--
2.47.1
