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-rw-r--r--include/linux/spinlock_api_up.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/include/linux/spinlock_api_up.h b/include/linux/spinlock_api_up.h
new file mode 100644
index 00000000..af1f4722
--- /dev/null
+++ b/include/linux/spinlock_api_up.h
@@ -0,0 +1,85 @@
+#ifndef __LINUX_SPINLOCK_API_UP_H
+#define __LINUX_SPINLOCK_API_UP_H
+
+#ifndef __LINUX_SPINLOCK_H
+# error "please don't include this file directly"
+#endif
+
+/*
+ * include/linux/spinlock_api_up.h
+ *
+ * spinlock API implementation on UP-nondebug (inlined implementation)
+ *
+ * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
+ * Released under the General Public License (GPL).
+ */
+
+#define in_lock_functions(ADDR) 0
+
+#define assert_raw_spin_locked(lock) do { (void)(lock); } while (0)
+
+/*
+ * In the UP-nondebug case there's no real locking going on, so the
+ * only thing we have to do is to keep the preempt counts and irq
+ * flags straight, to suppress compiler warnings of unused lock
+ * variables, and to add the proper checker annotations:
+ */
+#define __LOCK(lock) \
+ do { preempt_disable(); __acquire(lock); (void)(lock); } while (0)
+
+#define __LOCK_BH(lock) \
+ do { local_bh_disable(); __LOCK(lock); } while (0)
+
+#define __LOCK_IRQ(lock) \
+ do { local_irq_disable(); __LOCK(lock); } while (0)
+
+#define __LOCK_IRQSAVE(lock, flags) \
+ do { local_irq_save(flags); __LOCK(lock); } while (0)
+
+#define __UNLOCK(lock) \
+ do { preempt_enable(); __release(lock); (void)(lock); } while (0)
+
+#define __UNLOCK_BH(lock) \
+ do { preempt_enable_no_resched(); local_bh_enable(); \
+ __release(lock); (void)(lock); } while (0)
+
+#define __UNLOCK_IRQ(lock) \
+ do { local_irq_enable(); __UNLOCK(lock); } while (0)
+
+#define __UNLOCK_IRQRESTORE(lock, flags) \
+ do { local_irq_restore(flags); __UNLOCK(lock); } while (0)
+
+#define _raw_spin_lock(lock) __LOCK(lock)
+#define _raw_spin_lock_nested(lock, subclass) __LOCK(lock)
+#define _raw_read_lock(lock) __LOCK(lock)
+#define _raw_write_lock(lock) __LOCK(lock)
+#define _raw_spin_lock_bh(lock) __LOCK_BH(lock)
+#define _raw_read_lock_bh(lock) __LOCK_BH(lock)
+#define _raw_write_lock_bh(lock) __LOCK_BH(lock)
+#define _raw_spin_lock_irq(lock) __LOCK_IRQ(lock)
+#define _raw_read_lock_irq(lock) __LOCK_IRQ(lock)
+#define _raw_write_lock_irq(lock) __LOCK_IRQ(lock)
+#define _raw_spin_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
+#define _raw_read_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
+#define _raw_write_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags)
+#define _raw_spin_trylock(lock) ({ __LOCK(lock); 1; })
+#define _raw_read_trylock(lock) ({ __LOCK(lock); 1; })
+#define _raw_write_trylock(lock) ({ __LOCK(lock); 1; })
+#define _raw_spin_trylock_bh(lock) ({ __LOCK_BH(lock); 1; })
+#define _raw_spin_unlock(lock) __UNLOCK(lock)
+#define _raw_read_unlock(lock) __UNLOCK(lock)
+#define _raw_write_unlock(lock) __UNLOCK(lock)
+#define _raw_spin_unlock_bh(lock) __UNLOCK_BH(lock)
+#define _raw_write_unlock_bh(lock) __UNLOCK_BH(lock)
+#define _raw_read_unlock_bh(lock) __UNLOCK_BH(lock)
+#define _raw_spin_unlock_irq(lock) __UNLOCK_IRQ(lock)
+#define _raw_read_unlock_irq(lock) __UNLOCK_IRQ(lock)
+#define _raw_write_unlock_irq(lock) __UNLOCK_IRQ(lock)
+#define _raw_spin_unlock_irqrestore(lock, flags) \
+ __UNLOCK_IRQRESTORE(lock, flags)
+#define _raw_read_unlock_irqrestore(lock, flags) \
+ __UNLOCK_IRQRESTORE(lock, flags)
+#define _raw_write_unlock_irqrestore(lock, flags) \
+ __UNLOCK_IRQRESTORE(lock, flags)
+
+#endif /* __LINUX_SPINLOCK_API_UP_H */