bfq-wf2q.c (415812f2d6b856d33ede9bf4a2b95575dbbb3d4e) bfq-wf2q.c (a66c38a171ed25488debf80247a9e72e1026e82c)
1/*
2 * Hierarchical Budget Worst-case Fair Weighted Fair Queueing
3 * (B-WF2Q+): hierarchical scheduling algorithm by which the BFQ I/O
4 * scheduler schedules generic entities. The latter can represent
5 * either single bfq queues (associated with processes) or groups of
6 * bfq queues (associated with cgroups).
7 *
8 * This program is free software; you can redistribute it and/or

--- 1100 unchanged lines hidden (view full) ---

1109 * Deactivates an entity, independently from its previous state. Must
1110 * be invoked only if entity is on a service tree. Extracts the entity
1111 * from that tree, and if necessary and allowed, puts it on the idle
1112 * tree.
1113 */
1114bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
1115{
1116 struct bfq_sched_data *sd = entity->sched_data;
1/*
2 * Hierarchical Budget Worst-case Fair Weighted Fair Queueing
3 * (B-WF2Q+): hierarchical scheduling algorithm by which the BFQ I/O
4 * scheduler schedules generic entities. The latter can represent
5 * either single bfq queues (associated with processes) or groups of
6 * bfq queues (associated with cgroups).
7 *
8 * This program is free software; you can redistribute it and/or

--- 1100 unchanged lines hidden (view full) ---

1109 * Deactivates an entity, independently from its previous state. Must
1110 * be invoked only if entity is on a service tree. Extracts the entity
1111 * from that tree, and if necessary and allowed, puts it on the idle
1112 * tree.
1113 */
1114bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
1115{
1116 struct bfq_sched_data *sd = entity->sched_data;
1117 struct bfq_service_tree *st = bfq_entity_service_tree(entity);
1118 int is_in_service = entity == sd->in_service_entity;
1117 struct bfq_service_tree *st;
1118 bool is_in_service;
1119
1120 if (!entity->on_st) /* entity never activated, or already inactive */
1121 return false;
1122
1119
1120 if (!entity->on_st) /* entity never activated, or already inactive */
1121 return false;
1122
1123 /*
1124 * If we get here, then entity is active, which implies that
1125 * bfq_group_set_parent has already been invoked for the group
1126 * represented by entity. Therefore, the field
1127 * entity->sched_data has been set, and we can safely use it.
1128 */
1129 st = bfq_entity_service_tree(entity);
1130 is_in_service = entity == sd->in_service_entity;
1131
1123 if (is_in_service)
1124 bfq_calc_finish(entity, entity->service);
1125
1126 if (entity->tree == &st->active)
1127 bfq_active_extract(st, entity);
1128 else if (!is_in_service && entity->tree == &st->idle)
1129 bfq_idle_extract(st, entity);
1130

--- 486 unchanged lines hidden --- 		1132 if (is_in_service)
1133 bfq_calc_finish(entity, entity->service);
1134
1135 if (entity->tree == &st->active)
1136 bfq_active_extract(st, entity);
1137 else if (!is_in_service && entity->tree == &st->idle)
1138 bfq_idle_extract(st, entity);
1139

--- 486 unchanged lines hidden ---