From 810b38179e9e4d4f57b4b733767bb08f8291a965 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 29 Feb 2008 15:21:01 -0500 Subject: sched: retain vruntime Kei Tokunaga reported an interactivity problem when moving tasks between control groups. Tasks would retain their old vruntime when moved between groups, this can cause funny lags. Re-set the vruntime on group move to fit within the new tree. Reported-by: Kei Tokunaga Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'kernel/sched.c') diff --git a/kernel/sched.c b/kernel/sched.c index dcd553cc4ee8..0b949c4e73ad 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -7625,6 +7625,11 @@ void sched_move_task(struct task_struct *tsk) set_task_rq(tsk, task_cpu(tsk)); +#ifdef CONFIG_FAIR_GROUP_SCHED + if (tsk->sched_class->moved_group) + tsk->sched_class->moved_group(tsk); +#endif + if (on_rq) { if (unlikely(running)) tsk->sched_class->set_curr_task(rq); -- cgit v1.2.3