s390/mm: rename user_mode variable to addressing_mode

Fix name clash with user_mode() define which is also used in common code.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/mmu_context.h

@@ -57,7 +57,7 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
 	pgd_t *pgd = mm->pgd;
 
 	S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd);
-	if (user_mode != HOME_SPACE_MODE) {
+	if (addressing_mode != HOME_SPACE_MODE) {
 		/* Load primary space page table origin. */
 		asm volatile(LCTL_OPCODE" 1,1,%0\n"
 			     : : "m" (S390_lowcore.user_asce) );

arch/s390/include/asm/setup.h

@@ -60,7 +60,7 @@ void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
 #define SECONDARY_SPACE_MODE	2
 #define HOME_SPACE_MODE		3
 
-extern unsigned int user_mode;
+extern unsigned int addressing_mode;
 
 /*
  * Machine features detected in head.S

arch/s390/kernel/setup.c

@@ -302,8 +302,8 @@ static int __init parse_vmalloc(char *arg)
 }
 early_param("vmalloc", parse_vmalloc);
 
-unsigned int user_mode = HOME_SPACE_MODE;
-EXPORT_SYMBOL_GPL(user_mode);
+unsigned int addressing_mode = HOME_SPACE_MODE;
+EXPORT_SYMBOL_GPL(addressing_mode);
 
 static int set_amode_primary(void)
 {
@@ -328,7 +328,7 @@ static int set_amode_primary(void)
  */
 static int __init early_parse_switch_amode(char *p)
 {
-	user_mode = PRIMARY_SPACE_MODE;
+	addressing_mode = PRIMARY_SPACE_MODE;
 	return 0;
 }
 early_param("switch_amode", early_parse_switch_amode);
@@ -336,9 +336,9 @@ early_param("switch_amode", early_parse_switch_amode);
 static int __init early_parse_user_mode(char *p)
 {
 	if (p && strcmp(p, "primary") == 0)
-		user_mode = PRIMARY_SPACE_MODE;
+		addressing_mode = PRIMARY_SPACE_MODE;
 	else if (!p || strcmp(p, "home") == 0)
-		user_mode = HOME_SPACE_MODE;
+		addressing_mode = HOME_SPACE_MODE;
 	else
 		return 1;
 	return 0;
@@ -347,7 +347,7 @@ early_param("user_mode", early_parse_user_mode);
 
 static void setup_addressing_mode(void)
 {
-	if (user_mode == PRIMARY_SPACE_MODE) {
+	if (addressing_mode == PRIMARY_SPACE_MODE) {
 		if (set_amode_primary())
 			pr_info("Address spaces switched, "
 				"mvcos available\n");

arch/s390/kernel/vdso.c

@@ -84,7 +84,8 @@ struct vdso_data *vdso_data = &vdso_data_store.data;
  */
 static void vdso_init_data(struct vdso_data *vd)
 {
-	vd->ectg_available = user_mode != HOME_SPACE_MODE && test_facility(31);
+	vd->ectg_available =
+		addressing_mode != HOME_SPACE_MODE && test_facility(31);
 }
 
 #ifdef CONFIG_64BIT
@@ -101,7 +102,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore)
 
 	lowcore->vdso_per_cpu_data = __LC_PASTE;
 
-	if (user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
 		return 0;
 
 	segment_table = __get_free_pages(GFP_KERNEL, SEGMENT_ORDER);
@@ -146,7 +147,7 @@ void vdso_free_per_cpu(struct _lowcore *lowcore)
 	unsigned long segment_table, page_table, page_frame;
 	u32 *psal, *aste;
 
-	if (user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
 		return;
 
 	psal = (u32 *)(addr_t) lowcore->paste[4];
@@ -164,7 +165,7 @@ static void vdso_init_cr5(void)
 {
 	unsigned long cr5;
 
-	if (user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
 		return;
 	cr5 = offsetof(struct _lowcore, paste);
 	__ctl_load(cr5, 5, 5);

arch/s390/mm/fault.c

@@ -111,7 +111,7 @@ static inline int user_space_fault(unsigned long trans_exc_code)
 	if (trans_exc_code == 2)
 		/* Access via secondary space, set_fs setting decides */
 		return current->thread.mm_segment.ar4;
-	if (user_mode == HOME_SPACE_MODE)
+	if (addressing_mode == HOME_SPACE_MODE)
 		/* User space if the access has been done via home space. */
 		return trans_exc_code == 3;
 	/*

arch/s390/mm/pgtable.c

@@ -796,7 +796,7 @@ int s390_enable_sie(void)
 	struct mm_struct *mm, *old_mm;
 
 	/* Do we have switched amode? If no, we cannot do sie */
-	if (user_mode == HOME_SPACE_MODE)
+	if (addressing_mode == HOME_SPACE_MODE)
 		return -EINVAL;
 
 	/* Do we have pgstes? if yes, we are done */