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29 lines
915 B
Diff
29 lines
915 B
Diff
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Tue, 30 Jun 2020 11:45:14 +0200
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Subject: [PATCH] x86/entry: Use should_resched() in
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idtentry_exit_cond_resched()
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The TIF_NEED_RESCHED bit is inlined on x86 into the preemption counter.
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By using should_resched(0) instead of need_resched() the same check can
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be performed which uses the same variable as 'preempt_count()` which was
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issued before.
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Use should_resched(0) instead need_resched().
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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kernel/entry/common.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/kernel/entry/common.c
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+++ b/kernel/entry/common.c
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@@ -396,7 +396,7 @@ void irqentry_exit_cond_resched(void)
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rcu_irq_exit_check_preempt();
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if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
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WARN_ON_ONCE(!on_thread_stack());
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- if (need_resched())
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+ if (should_resched(0))
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preempt_schedule_irq();
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}
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}
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