Messages in this thread Patch in this message | | | Subject | [PATCH] sched: At sched_fork use __set_task_cpu(). | From | Rakib Mullick <> | Date | Sun, 29 Jan 2012 22:34:37 +0600 |
| |
We don't use select_task_rq() from sched_fork() anymore and no chance of task gets migrated at this point. Therefore, we can avoid task migration related checking/accounting, so use __set_task_cpu() instead of set_task_cpu().
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> ---
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index df00cb0..a38026e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1755,7 +1755,7 @@ void sched_fork(struct task_struct *p) * Silence PROVE_RCU. */ raw_spin_lock_irqsave(&p->pi_lock, flags); - set_task_cpu(p, cpu); + __set_task_cpu(p, cpu); raw_spin_unlock_irqrestore(&p->pi_lock, flags); #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
| |