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-rw-r--r--block/bfq-wf2q.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c
index 5f26cc2..86a928d 100644
--- a/block/bfq-wf2q.c
+++ b/block/bfq-wf2q.c
@@ -86,9 +86,8 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
* or repositiong of an entity that does not coincide with
* sd->next_in_service, then a full lookup in the active tree
* can be avoided. In fact, it is enough to check whether the
- * just-modified entity has a higher priority than
- * sd->next_in_service, or, even if it has the same priority
- * as sd->next_in_service, is eligible and has a lower virtual
+ * just-modified entity has the same priority as
+ * sd->next_in_service, is eligible and has a lower virtual
* finish time than sd->next_in_service. If this compound
* condition holds, then the new entity becomes the new
* next_in_service. Otherwise no change is needed.
@@ -104,9 +103,8 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
/*
* If there is already a next_in_service candidate
- * entity, then compare class priorities or timestamps
- * to decide whether to replace sd->service_tree with
- * new_entity.
+ * entity, then compare timestamps to decide whether
+ * to replace sd->service_tree with new_entity.
*/
if (next_in_service) {
unsigned int new_entity_class_idx =
@@ -114,10 +112,6 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
struct bfq_service_tree *st =
sd->service_tree + new_entity_class_idx;
- /*
- * For efficiency, evaluate the most likely
- * sub-condition first.
- */
replace_next =
(new_entity_class_idx ==
bfq_class_idx(next_in_service)
@@ -125,10 +119,7 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
!bfq_gt(new_entity->start, st->vtime)
&&
bfq_gt(next_in_service->finish,
- new_entity->finish))
- ||
- new_entity_class_idx <
- bfq_class_idx(next_in_service);
+ new_entity->finish));
}
if (replace_next)
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