AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sched: fix sysctl_sched_child_runs_first flag

Browse Source 
fix the sched_child_runs_first flag: always call into ->task_new()
if we are on the same CPU, as SCHED_OTHER tasks depend on it for
correct initial setup.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2007-10-15 17:00:01 +02:00
parent 23fd50450a
commit 44142fac34
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/sched.c
View File

@ -1688,10 +1688,8 @@ void fastcall wake_up_new_task(struct task_struct *p, unsigned long clone_flags)
else else
p->sched_class = &fair_sched_class; p->sched_class = &fair_sched_class;
if (!p->sched_class->task_new || !sysctl_sched_child_runs_first || if (task_cpu(p) != this_cpu || !p->sched_class->task_new ||
(clone_flags & CLONE_VM) || task_cpu(p) != this_cpu || !current->se.on_rq) {
!current->se.on_rq) {
activate_task(rq, p, 0); activate_task(rq, p, 0);
} else { } else {
/* /*