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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-05 21:48:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-05 21:48:50 +0100 |
| commit | a1413c89ae6a4b7a9a43f7768934a81ffb5c629a (patch) | |
| tree | 7e16be26407c5fd4dfbfeb98b11590809a963664 /kernel/sched.c | |
| parent | f254f3909efaf59ca2d0f408de2d044dace60706 (diff) | |
| parent | dd4124a8a06bca89c077a16437edac010f0bb993 (diff) | |
| download | blackbird-op-linux-a1413c89ae6a4b7a9a43f7768934a81ffb5c629a.tar.gz blackbird-op-linux-a1413c89ae6a4b7a9a43f7768934a81ffb5c629a.zip | |
Merge branch 'x86/urgent' into x86/core
Conflicts:
arch/x86/include/asm/fixmap_64.h
Semantic merge:
arch/x86/include/asm/fixmap.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 0e5c38e1c8b5..0a76d0b6f215 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -223,7 +223,7 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b) { ktime_t now; - if (rt_bandwidth_enabled() && rt_b->rt_runtime == RUNTIME_INF) + if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF) return; if (hrtimer_active(&rt_b->rt_period_timer)) @@ -9219,6 +9219,16 @@ static int sched_rt_global_constraints(void) return ret; } + +int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk) +{ + /* Don't accept realtime tasks when there is no way for them to run */ + if (rt_task(tsk) && tg->rt_bandwidth.rt_runtime == 0) + return 0; + + return 1; +} + #else /* !CONFIG_RT_GROUP_SCHED */ static int sched_rt_global_constraints(void) { @@ -9312,8 +9322,7 @@ cpu_cgroup_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp, struct task_struct *tsk) { #ifdef CONFIG_RT_GROUP_SCHED - /* Don't accept realtime tasks when there is no way for them to run */ - if (rt_task(tsk) && cgroup_tg(cgrp)->rt_bandwidth.rt_runtime == 0) + if (!sched_rt_can_attach(cgroup_tg(cgrp), tsk)) return -EINVAL; #else /* We don't support RT-tasks being in separate groups */ |
