Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / linux / hardirq.h

diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index ebc712e..eab5370 100644 (file)
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -2,6 +2,7 @@
 #define LINUX_HARDIRQ_H
 
 #include <linux/config.h>
+#include <linux/preempt.h>
 #include <linux/smp_lock.h>
 #include <asm/hardirq.h>
 #include <asm/system.h>
@@ -43,13 +44,17 @@
 #define __IRQ_MASK(x)  ((1UL << (x))-1)
 
 #define PREEMPT_MASK   (__IRQ_MASK(PREEMPT_BITS) << PREEMPT_SHIFT)
-#define HARDIRQ_MASK   (__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
 #define SOFTIRQ_MASK   (__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT)
+#define HARDIRQ_MASK   (__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
 
 #define PREEMPT_OFFSET (1UL << PREEMPT_SHIFT)
 #define SOFTIRQ_OFFSET (1UL << SOFTIRQ_SHIFT)
 #define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT)
 
+#if PREEMPT_ACTIVE < (1 << (HARDIRQ_SHIFT + HARDIRQ_BITS))
+#error PREEMPT_ACTIVE is too low!
+#endif
+
 #define hardirq_count()        (preempt_count() & HARDIRQ_MASK)
 #define softirq_count()        (preempt_count() & SOFTIRQ_MASK)
 #define irq_count()    (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK))
@@ -85,11 +90,9 @@ extern void synchronize_irq(unsigned int irq);
 #define nmi_enter()            irq_enter()
 #define nmi_exit()             sub_preempt_count(HARDIRQ_OFFSET)
 
-#ifndef CONFIG_VIRT_CPU_ACCOUNTING
-static inline void account_user_vtime(struct task_struct *tsk)
-{
-}
+struct task_struct;
 
+#ifndef CONFIG_VIRT_CPU_ACCOUNTING
 static inline void account_system_vtime(struct task_struct *tsk)
 {
 }