diff options
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index db3f674ca49d..1bb879013173 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -802,6 +802,8 @@ static void clear_buddies(struct cfs_rq *cfs_rq, struct sched_entity *se) static void dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) { + u64 min_vruntime; + /* * Update run-time statistics of the 'current'. */ @@ -826,6 +828,8 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) if (se != cfs_rq->curr) __dequeue_entity(cfs_rq, se); account_entity_dequeue(cfs_rq, se); + + min_vruntime = cfs_rq->min_vruntime; update_min_vruntime(cfs_rq); /* @@ -834,7 +838,7 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) * movement in our normalized position. */ if (!(flags & DEQUEUE_SLEEP)) - se->vruntime -= cfs_rq->min_vruntime; + se->vruntime -= min_vruntime; } /* @@ -3827,10 +3831,21 @@ static void set_curr_task_fair(struct rq *rq) static void moved_group_fair(struct task_struct *p, int on_rq) { struct cfs_rq *cfs_rq = task_cfs_rq(p); + struct sched_entity *se = &p->se; update_curr(cfs_rq); if (!on_rq) - place_entity(cfs_rq, &p->se, 1); + se->vruntime += cfs_rq->min_vruntime; +} + +static void prep_move_group_fair(struct task_struct *p, int on_rq) +{ + struct cfs_rq *cfs_rq = task_cfs_rq(p); + struct sched_entity *se = &p->se; + + /* normalize the runtime of a sleeping task before moving it */ + if (!on_rq) + se->vruntime -= cfs_rq->min_vruntime; } #endif @@ -3883,6 +3898,7 @@ static const struct sched_class fair_sched_class = { #ifdef CONFIG_FAIR_GROUP_SCHED .moved_group = moved_group_fair, + .prep_move_group = prep_move_group_fair, #endif }; |