Index: kernel/generic/include/proc/thread.h
===================================================================
--- kernel/generic/include/proc/thread.h	(revision 79ae36ddc409577eb0da3750b3a7280e034566a2)
+++ kernel/generic/include/proc/thread.h	(revision 9f7276d086028d3d36b9d3638e5d4759150cd6c9)
@@ -156,4 +156,7 @@
 	int fpu_context_engaged;
 	
+	/* The thread will not be migrated if nomigrate is non-zero. */
+	int nomigrate;
+	
 	/** Thread's state. */
 	state_t state;
@@ -245,4 +248,7 @@
 extern bool thread_exists(thread_t *);
 
+extern void thread_migration_disable(void);
+extern void thread_migration_enable(void);
+
 #ifdef CONFIG_UDEBUG
 extern void thread_stack_trace(thread_id_t);