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Upgrade -rt patches to v4.14.29-rt25

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Signed-off-by: Tiejun Chen <tiejun.china@gmail.com>
This commit is contained in:
Tiejun Chen
2018-03-21 11:52:25 -07:00
parent fa51dea7fb
commit 9a88a5e986
393 changed files with 877 additions and 405 deletions
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52
kernel/patches-4.14.x-rt/0133-local-irq-rt-depending-variants.patch Normal file
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@@ -0,0 +1,52 @@
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 21 Jul 2009 22:34:14 +0200
Subject: rt: local_irq_* variants depending on RT/!RT
Add local_irq_*_(no)rt variant which are mainly used to break
interrupt disabled sections on PREEMPT_RT or to explicitely disable
interrupts on PREEMPT_RT.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/interrupt.h | 2 +-
include/linux/irqflags.h | 19 +++++++++++++++++++
2 files changed, 20 insertions(+), 1 deletion(-)
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -207,7 +207,7 @@ extern void devm_free_irq(struct device
#ifdef CONFIG_LOCKDEP
# define local_irq_enable_in_hardirq() do { } while (0)
#else
-# define local_irq_enable_in_hardirq() local_irq_enable()
+# define local_irq_enable_in_hardirq() local_irq_enable_nort()
#endif
extern void disable_irq_nosync(unsigned int irq);
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -165,4 +165,23 @@ do { \
#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
+/*
+ * local_irq* variants depending on RT/!RT
+ */
+#ifdef CONFIG_PREEMPT_RT_FULL
+# define local_irq_disable_nort() do { } while (0)
+# define local_irq_enable_nort() do { } while (0)
+# define local_irq_save_nort(flags) local_save_flags(flags)
+# define local_irq_restore_nort(flags) (void)(flags)
+# define local_irq_disable_rt() local_irq_disable()
+# define local_irq_enable_rt() local_irq_enable()
+#else
+# define local_irq_disable_nort() local_irq_disable()
+# define local_irq_enable_nort() local_irq_enable()
+# define local_irq_save_nort(flags) local_irq_save(flags)
+# define local_irq_restore_nort(flags) local_irq_restore(flags)
+# define local_irq_disable_rt() do { } while (0)
+# define local_irq_enable_rt() do { } while (0)
+#endif
+
#endif