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author | Ingo Molnar <mingo@elte.hu> | 2010-11-26 14:03:27 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-11-26 14:05:21 (GMT) |
commit | 22a867d81707b0a2720bb5f65255265b95d30526 (patch) | |
tree | 7ec19b155b50b13ae95244c2bfa16aea4920c4f6 /kernel/sched.c | |
parent | 5bb6b1ea67a73f0665a41726dd7138977b992c6c (diff) | |
parent | 3561d43fd289f590fdae672e5eb831b8d5cf0bf6 (diff) | |
download | linux-22a867d81707b0a2720bb5f65255265b95d30526.tar.xz |
Merge commit 'v2.6.37-rc3' into sched/core
Merge reason: Pick up latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r-- | kernel/sched.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 324afce..3e8a7db 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -557,18 +557,8 @@ struct rq { static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); -static inline -void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags) -{ - rq->curr->sched_class->check_preempt_curr(rq, p, flags); - /* - * A queue event has occurred, and we're going to schedule. In - * this case, we can save a useless back to back clock update. - */ - if (test_tsk_need_resched(p)) - rq->skip_clock_update = 1; -} +static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags); static inline int cpu_of(struct rq *rq) { @@ -1980,6 +1970,31 @@ static inline void check_class_changed(struct rq *rq, struct task_struct *p, p->sched_class->prio_changed(rq, p, oldprio, running); } +static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags) +{ + const struct sched_class *class; + + if (p->sched_class == rq->curr->sched_class) { + rq->curr->sched_class->check_preempt_curr(rq, p, flags); + } else { + for_each_class(class) { + if (class == rq->curr->sched_class) + break; + if (class == p->sched_class) { + resched_task(rq->curr); + break; + } + } + } + + /* + * A queue event has occurred, and we're going to schedule. In + * this case, we can save a useless back to back clock update. + */ + if (test_tsk_need_resched(rq->curr)) + rq->skip_clock_update = 1; +} + #ifdef CONFIG_SMP /* * Is this task likely cache-hot: @@ -6737,6 +6752,8 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd) if (cpu != group_first_cpu(sd->groups)) return; + sd->groups->group_weight = cpumask_weight(sched_group_cpus(sd->groups)); + child = sd->child; sd->groups->cpu_power = 0; |