NUMA: add NUMA mask to process VM structure

kernel/include/process.h

@@ -22,6 +22,7 @@
 #include <memobj.h>
 #include <affinity.h>
 #include <syscall.h>
+#include <bitops.h>
 
 #define VR_NONE            0x0
 #define VR_STACK           0x1
@@ -165,6 +166,8 @@
 
 #define NOPHYS ((uintptr_t)-1)
 
+#define PROCESS_NUMA_MASK_BITS 64
+
 #include <waitq.h>
 #include <futex.h>
 
@@ -594,6 +597,7 @@ struct process_vm {
 	int exiting;
 
 	long currss;
+	DECLARE_BITMAP(numa_mask, PROCESS_NUMA_MASK_BITS);
 };
 
 static inline int has_cap_ipc_lock(struct thread *th)