47 lines
1.2 KiB
Diff
47 lines
1.2 KiB
Diff
Subject: genirq: Force interrupt thread on RT
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Sun, 03 Apr 2011 11:57:29 +0200
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.1-rt3.tar.xz
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Force threaded_irqs and optimize the code (force_irqthreads) in regard
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to this.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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include/linux/interrupt.h | 4 ++++
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kernel/irq/manage.c | 2 ++
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2 files changed, 6 insertions(+)
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--- a/include/linux/interrupt.h
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+++ b/include/linux/interrupt.h
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@@ -427,7 +427,11 @@ extern int irq_set_irqchip_state(unsigne
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bool state);
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#ifdef CONFIG_IRQ_FORCED_THREADING
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+# ifdef CONFIG_PREEMPT_RT_BASE
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+# define force_irqthreads (true)
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+# else
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extern bool force_irqthreads;
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+# endif
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#else
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#define force_irqthreads (0)
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#endif
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--- a/kernel/irq/manage.c
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+++ b/kernel/irq/manage.c
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@@ -23,6 +23,7 @@
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#include "internals.h"
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#ifdef CONFIG_IRQ_FORCED_THREADING
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+# ifndef CONFIG_PREEMPT_RT_BASE
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__read_mostly bool force_irqthreads;
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EXPORT_SYMBOL_GPL(force_irqthreads);
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@@ -32,6 +33,7 @@ static int __init setup_forced_irqthread
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return 0;
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}
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early_param("threadirqs", setup_forced_irqthreads);
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+# endif
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#endif
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static void __synchronize_hardirq(struct irq_desc *desc)
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