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rt,sched,numa: Move task_numa_free() to __put_task_struct(), which -rt offloads 

Bad idea:
[  908.026136]  [<ffffffff8150ad6a>] rt_spin_lock_slowlock+0xaa/0x2c0
[  908.026145]  [<ffffffff8108f701>] task_numa_free+0x31/0x130
[  908.026151]  [<ffffffff8108121e>] finish_task_switch+0xce/0x100
[  908.026156]  [<ffffffff81509c0a>] thread_return+0x48/0x4ae
[  908.026160]  [<ffffffff8150a095>] schedule+0x25/0xa0
[  908.026163]  [<ffffffff8150ad95>] rt_spin_lock_slowlock+0xd5/0x2c0
[  908.026170]  [<ffffffff810658cf>] get_signal_to_deliver+0xaf/0x680
[  908.026175]  [<ffffffff8100242d>] do_signal+0x3d/0x5b0
[  908.026179]  [<ffffffff81002a30>] do_notify_resume+0x90/0xe0
[  908.026186]  [<ffffffff81513176>] int_signal+0x12/0x17
[  908.026193]  [<00007ff2a388b1d0>] 0x7ff2a388b1cf

Signed-off-by: Mike Galbraith <bitbucket@online.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
This commit is contained in:
Mike Galbraith 2014-02-28 07:23:11 +01:00 committed by Alibek Omarov
parent 762167f98c
commit d4fbde7a11
2 changed files with 1 additions and 2 deletions
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1
kernel/fork.c
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@ -239,6 +239,7 @@ void __put_task_struct(struct task_struct *tsk)
WARN_ON(atomic_read(&tsk->usage));
WARN_ON(tsk == current);
task_numa_free(tsk);
security_task_free(tsk);
exit_creds(tsk);
delayacct_tsk_free(tsk);

2
kernel/sched/core.c
View File

@ -2153,8 +2153,6 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
if (mm)
mmdrop(mm);
if (unlikely(prev_state == TASK_DEAD)) {
task_numa_free(prev);
if (prev->sched_class->task_dead)
prev->sched_class->task_dead(prev);