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60 lines
2.1 KiB
Diff
60 lines
2.1 KiB
Diff
From 390089fdda959fa80d82a9be49d46ef817e37c24 Mon Sep 17 00:00:00 2001
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Tue, 21 Jul 2009 22:34:14 +0200
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Subject: [PATCH 147/413] rt: local_irq_* variants depending on RT/!RT
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Add local_irq_*_(no)rt variant which are mainly used to break
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interrupt disabled sections on PREEMPT_RT or to explicitely disable
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interrupts on PREEMPT_RT.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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include/linux/interrupt.h | 2 +-
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include/linux/irqflags.h | 19 +++++++++++++++++++
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2 files changed, 20 insertions(+), 1 deletion(-)
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diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
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index af15bfd89598..2957da07e967 100644
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--- a/include/linux/interrupt.h
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+++ b/include/linux/interrupt.h
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@@ -207,7 +207,7 @@ extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
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#ifdef CONFIG_LOCKDEP
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# define local_irq_enable_in_hardirq() do { } while (0)
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#else
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-# define local_irq_enable_in_hardirq() local_irq_enable()
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+# define local_irq_enable_in_hardirq() local_irq_enable_nort()
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#endif
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extern void disable_irq_nosync(unsigned int irq);
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diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
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index 46cb57d5eb13..7834117a1ef5 100644
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--- a/include/linux/irqflags.h
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+++ b/include/linux/irqflags.h
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@@ -165,4 +165,23 @@ do { \
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#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
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+/*
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+ * local_irq* variants depending on RT/!RT
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+ */
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+#ifdef CONFIG_PREEMPT_RT_FULL
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+# define local_irq_disable_nort() do { } while (0)
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+# define local_irq_enable_nort() do { } while (0)
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+# define local_irq_save_nort(flags) local_save_flags(flags)
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+# define local_irq_restore_nort(flags) (void)(flags)
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+# define local_irq_disable_rt() local_irq_disable()
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+# define local_irq_enable_rt() local_irq_enable()
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+#else
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+# define local_irq_disable_nort() local_irq_disable()
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+# define local_irq_enable_nort() local_irq_enable()
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+# define local_irq_save_nort(flags) local_irq_save(flags)
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+# define local_irq_restore_nort(flags) local_irq_restore(flags)
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+# define local_irq_disable_rt() do { } while (0)
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+# define local_irq_enable_rt() do { } while (0)
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+#endif
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+
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#endif
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--
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2.18.0
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