uml: fold mmu_context_skas into mm_context

This patch folds mmu_context_skas into struct mm_context, changing all users
of these structures as needed.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/include/um_mmu.h b/arch/um/include/um_mmu.h
index 668da84..8855d8d 100644
--- a/arch/um/include/um_mmu.h
+++ b/arch/um/include/um_mmu.h
@@ -7,10 +7,22 @@
 #define __ARCH_UM_MMU_H
 
 #include "uml-config.h"
-#include "mmu-skas.h"
+#include "mm_id.h"
+#include "asm/ldt.h"
 
-typedef union mm_context {
-	struct mmu_context_skas skas;
+typedef struct mm_context {
+	struct mm_id id;
+	unsigned long last_page_table;
+#ifdef CONFIG_3_LEVEL_PGTABLES
+	unsigned long last_pmd;
+#endif
+	struct uml_ldt ldt;
 } mm_context_t;
 
+extern void __switch_mm(struct mm_id * mm_idp);
+
+/* Avoid tangled inclusion with asm/ldt.h */
+extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm);
+extern void free_ldt(struct mm_context *mm);
+
 #endif