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-rw-r--r--include/linux/hardirq.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 6f657d7f2d04..7803014f3a11 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -106,6 +106,16 @@ static inline void account_system_vtime(struct task_struct *tsk)
106 * always balanced, so the interrupted value of ->hardirq_context 106 * always balanced, so the interrupted value of ->hardirq_context
107 * will always be restored. 107 * will always be restored.
108 */ 108 */
109#define __irq_enter() \
110 do { \
111 account_system_vtime(current); \
112 add_preempt_count(HARDIRQ_OFFSET); \
113 trace_hardirq_enter(); \
114 } while (0)
115
116/*
117 * Enter irq context (on NO_HZ, update jiffies):
118 */
109extern void irq_enter(void); 119extern void irq_enter(void);
110 120
111/* 121/*
@@ -123,7 +133,7 @@ extern void irq_enter(void);
123 */ 133 */
124extern void irq_exit(void); 134extern void irq_exit(void);
125 135
126#define nmi_enter() do { lockdep_off(); irq_enter(); } while (0) 136#define nmi_enter() do { lockdep_off(); __irq_enter(); } while (0)
127#define nmi_exit() do { __irq_exit(); lockdep_on(); } while (0) 137#define nmi_exit() do { __irq_exit(); lockdep_on(); } while (0)
128 138
129#endif /* LINUX_HARDIRQ_H */ 139#endif /* LINUX_HARDIRQ_H */