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authorLai Jiangshan <laijs@cn.fujitsu.com>2009-03-06 19:40:20 +0800
committerIngo Molnar <mingo@elte.hu>2009-03-06 12:48:55 +0100
commit5ed0cec0ac5f1b3759bdbe4d9df32ee4ff8afb5a (patch)
treea804da35b296f278865b194661cc6e75bfdaf11f
parent7fc07d84108d54c5b94625c0e168f31b2d66976e (diff)
sched: TIF_NEED_RESCHED -> need_reshed() cleanup
Impact: cleanup Use test_tsk_need_resched(), set_tsk_need_resched(), need_resched() instead of using TIF_NEED_RESCHED. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <49B10BA4.9070209@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/sched.c10
-rw-r--r--lib/kernel_lock.c2
2 files changed, 6 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 8b92f40c147..e0fa739a441 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1189,10 +1189,10 @@ static void resched_task(struct task_struct *p)
assert_spin_locked(&task_rq(p)->lock);
- if (unlikely(test_tsk_thread_flag(p, TIF_NEED_RESCHED)))
+ if (test_tsk_need_resched(p))
return;
- set_tsk_thread_flag(p, TIF_NEED_RESCHED);
+ set_tsk_need_resched(p);
cpu = task_cpu(p);
if (cpu == smp_processor_id())
@@ -1248,7 +1248,7 @@ void wake_up_idle_cpu(int cpu)
* lockless. The worst case is that the other CPU runs the
* idle task through an additional NOOP schedule()
*/
- set_tsk_thread_flag(rq->idle, TIF_NEED_RESCHED);
+ set_tsk_need_resched(rq->idle);
/* NEED_RESCHED must be visible before we test polling */
smp_mb();
@@ -4740,7 +4740,7 @@ asmlinkage void __sched preempt_schedule(void)
* between schedule and now.
*/
barrier();
- } while (unlikely(test_thread_flag(TIF_NEED_RESCHED)));
+ } while (need_resched());
}
EXPORT_SYMBOL(preempt_schedule);
@@ -4769,7 +4769,7 @@ asmlinkage void __sched preempt_schedule_irq(void)
* between schedule and now.
*/
barrier();
- } while (unlikely(test_thread_flag(TIF_NEED_RESCHED)));
+ } while (need_resched());
}
#endif /* CONFIG_PREEMPT */
diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index 01a3c22c1b5..39f1029e352 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -39,7 +39,7 @@ static __cacheline_aligned_in_smp DEFINE_SPINLOCK(kernel_flag);
int __lockfunc __reacquire_kernel_lock(void)
{
while (!_raw_spin_trylock(&kernel_flag)) {
- if (test_thread_flag(TIF_NEED_RESCHED))
+ if (need_resched())
return -EAGAIN;
cpu_relax();
}