um: merge tls_{32,64}.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/x86/um/shared/sysdep/tls.h

@@ -1,5 +1,37 @@
+#ifndef _SYSDEP_TLS_H
+#define _SYSDEP_TLS_H
+
+# ifndef __KERNEL__
+
+/* Change name to avoid conflicts with the original one from <asm/ldt.h>, which
+ * may be named user_desc (but in 2.4 and in header matching its API was named
+ * modify_ldt_ldt_s). */
+
+typedef struct um_dup_user_desc {
+	unsigned int  entry_number;
+	unsigned int  base_addr;
+	unsigned int  limit;
+	unsigned int  seg_32bit:1;
+	unsigned int  contents:2;
+	unsigned int  read_exec_only:1;
+	unsigned int  limit_in_pages:1;
+	unsigned int  seg_not_present:1;
+	unsigned int  useable:1;
+#ifdef __x86_64__
+	unsigned int  lm:1;
+#endif
+} user_desc_t;
+
+# else /* __KERNEL__ */
+
+#  include <ldt.h>
+typedef struct user_desc user_desc_t;
+
+# endif /* __KERNEL__ */
+
 #ifdef __i386__
-#include "tls_32.h"
-#else
-#include "tls_64.h"
+#define GDT_ENTRY_TLS_MIN_I386 6
+#define GDT_ENTRY_TLS_MIN_X86_64 12
 #endif
+
+#endif /* _SYSDEP_TLS_H */