1 files changed, 92 insertions, 0 deletions

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
new file mode 100644
index 000000000000..d252f45a0f9b
--- /dev/null
+++ b/include/linux/thread_info.h
@@ -0,0 +1,92 @@
+/* thread_info.h: common low-level thread information accessors
+ *
+ * Copyright (C) 2002  David Howells (dhowells@redhat.com)
+ * - Incorporating suggestions made by Linus Torvalds
+ */
+
+#ifndef _LINUX_THREAD_INFO_H
+#define _LINUX_THREAD_INFO_H
+
+/*
+ * System call restart block. 
+ */
+struct restart_block {
+        long (*fn)(struct restart_block *);
+        unsigned long arg0, arg1, arg2, arg3;
+};
+
+extern long do_no_restart_syscall(struct restart_block *parm);
+
+#include <linux/bitops.h>
+#include <asm/thread_info.h>
+
+#ifdef __KERNEL__
+
+/*
+ * flag set/clear/test wrappers
+ * - pass TIF_xxxx constants to these functions
+ */
+
+static inline void set_thread_flag(int flag)
+{
+        set_bit(flag,&current_thread_info()->flags);
+}
+
+static inline void clear_thread_flag(int flag)
+{
+        clear_bit(flag,&current_thread_info()->flags);
+}
+
+static inline int test_and_set_thread_flag(int flag)
+{
+        return test_and_set_bit(flag,&current_thread_info()->flags);
+}
+
+static inline int test_and_clear_thread_flag(int flag)
+{
+        return test_and_clear_bit(flag,&current_thread_info()->flags);
+}
+
+static inline int test_thread_flag(int flag)
+{
+        return test_bit(flag,&current_thread_info()->flags);
+}
+
+static inline void set_ti_thread_flag(struct thread_info *ti, int flag)
+{
+        set_bit(flag,&ti->flags);
+}
+
+static inline void clear_ti_thread_flag(struct thread_info *ti, int flag)
+{
+        clear_bit(flag,&ti->flags);
+}
+
+static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag)
+{
+        return test_and_set_bit(flag,&ti->flags);
+}
+
+static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag)
+{
+        return test_and_clear_bit(flag,&ti->flags);
+}
+
+static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
+{
+        return test_bit(flag,&ti->flags);
+}
+
+static inline void set_need_resched(void)
+{
+        set_thread_flag(TIF_NEED_RESCHED);
+}
+
+static inline void clear_need_resched(void)
+{
+        clear_thread_flag(TIF_NEED_RESCHED);
+}
+
+#endif
+
+#endif /* _LINUX_THREAD_INFO_H */