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Diffstat (limited to 'include/linux/hardirq.h')
-rw-r--r--include/linux/hardirq.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index bb7f30971858..318d91ecc667 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -60,7 +60,11 @@
#define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT)
#define NMI_OFFSET (1UL << NMI_SHIFT)
-#define SOFTIRQ_DISABLE_OFFSET (2 * SOFTIRQ_OFFSET)
+#ifndef CONFIG_PREEMPT_RT_FULL
+# define SOFTIRQ_DISABLE_OFFSET (2 * SOFTIRQ_OFFSET)
+#else
+# define SOFTIRQ_DISABLE_OFFSET (0)
+#endif
#ifndef PREEMPT_ACTIVE
#define PREEMPT_ACTIVE_BITS 1
@@ -73,10 +77,17 @@
#endif
#define hardirq_count() (preempt_count() & HARDIRQ_MASK)
-#define softirq_count() (preempt_count() & SOFTIRQ_MASK)
#define irq_count() (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK \
| NMI_MASK))
+#ifndef CONFIG_PREEMPT_RT_FULL
+# define softirq_count() (preempt_count() & SOFTIRQ_MASK)
+# define in_serving_softirq() (softirq_count() & SOFTIRQ_OFFSET)
+#else
+# define softirq_count() (0UL)
+extern int in_serving_softirq(void);
+#endif
+
/*
* Are we doing bottom half or hardware interrupt processing?
* Are we in a softirq context? Interrupt context?
@@ -86,7 +97,6 @@
#define in_irq() (hardirq_count())
#define in_softirq() (softirq_count())
#define in_interrupt() (irq_count())
-#define in_serving_softirq() (softirq_count() & SOFTIRQ_OFFSET)
/*
* Are we in NMI context?