1 files changed, 51 insertions, 0 deletions
diff --git a/include/linux/spinlock_types_up.h b/include/linux/spinlock_types_up.h
new file mode 100644
index 00000000000..def2d173a8d
--- /dev/null
+++ b/include/linux/spinlock_types_up.h
@@ -0,0 +1,51 @@
+#ifndef __LINUX_SPINLOCK_TYPES_UP_H
+#define __LINUX_SPINLOCK_TYPES_UP_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_H
+# error "please don't include this file directly"
+#endif
+
+/*
+ * include/linux/spinlock_types_up.h - spinlock type definitions for UP
+ *
+ * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
+ * Released under the General Public License (GPL).
+ */
+
+#ifdef CONFIG_DEBUG_SPINLOCK
+
+typedef struct {
+	volatile unsigned int slock;
+} raw_spinlock_t;
+
+#define __RAW_SPIN_LOCK_UNLOCKED { 1 }
+
+#else
+
+/*
+ * All gcc 2.95 versions and early versions of 2.96 have a nasty bug
+ * with empty initializers.
+ */
+#if (__GNUC__ > 2)
+typedef struct { } raw_spinlock_t;
+
+#define __RAW_SPIN_LOCK_UNLOCKED { }
+#else
+typedef struct { int gcc_is_buggy; } raw_spinlock_t;
+#define __RAW_SPIN_LOCK_UNLOCKED (raw_spinlock_t) { 0 }
+#endif
+
+#endif
+
+#if (__GNUC__ > 2)
+typedef struct {
+	/* no debug version on UP */
+} raw_rwlock_t;
+
+#define __RAW_RW_LOCK_UNLOCKED { }
+#else
+typedef struct { int gcc_is_buggy; } raw_rwlock_t;
+#define __RAW_RW_LOCK_UNLOCKED (raw_rwlock_t) { 0 }
+#endif
+
+#endif /* __LINUX_SPINLOCK_TYPES_UP_H */