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Commit d1b0d842 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

s390/mm: rename addressing_mode to s390_user_mode 



Renaming the globally visible variable "user_mode" to "addressing_mode" in
order to fix a name clash was not a good idea. (Commit 37fe1d73 "s390/mm:
rename user_mode variable to addressing_mode")
Looking at the code after a couple of weeks one thinks: addressing mode of
what?
So rename the variable again. This time to s390_user_mode. Which hopefully
makes more sense.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 46e88947

arch/s390/include/asm/mmu_context.h

+1 −1
Original line number Diff line number Diff line
@@ -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 (addressing_mode != HOME_SPACE_MODE) {

	if (s390_user_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

+1 −1
Original line number Diff line number Diff line
@@ -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 addressing_mode;

extern unsigned int s390_user_mode;



/*

 * Machine features detected in head.S

arch/s390/kernel/runtime_instr.c

+1 −1
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ static void disable_runtime_instr(void) 
static void init_runtime_instr_cb(struct runtime_instr_cb *cb)

{

	cb->buf_limit = 0xfff;

	if (addressing_mode == HOME_SPACE_MODE)

	if (s390_user_mode == HOME_SPACE_MODE)

		cb->home_space = 1;

	cb->int_requested = 1;

	cb->pstate = 1;

arch/s390/kernel/setup.c

+5 −5
Original line number Diff line number Diff line
@@ -302,8 +302,8 @@ static int __init parse_vmalloc(char *arg) 
}

early_param("vmalloc", parse_vmalloc);



unsigned int addressing_mode = PRIMARY_SPACE_MODE;

EXPORT_SYMBOL_GPL(addressing_mode);

unsigned int s390_user_mode = PRIMARY_SPACE_MODE;

EXPORT_SYMBOL_GPL(s390_user_mode);



static int set_amode_primary(void)

{
@@ -326,9 +326,9 @@ static int set_amode_primary(void) 
static int __init early_parse_user_mode(char *p)

{

	if (p && strcmp(p, "primary") == 0)

		addressing_mode = PRIMARY_SPACE_MODE;

		s390_user_mode = PRIMARY_SPACE_MODE;

	else if (!p || strcmp(p, "home") == 0)

		addressing_mode = HOME_SPACE_MODE;

		s390_user_mode = HOME_SPACE_MODE;

	else

		return 1;

	return 0;
@@ -337,7 +337,7 @@ early_param("user_mode", early_parse_user_mode); 


static void setup_addressing_mode(void)

{

	if (addressing_mode == PRIMARY_SPACE_MODE) {

	if (s390_user_mode == PRIMARY_SPACE_MODE) {

		if (set_amode_primary())

			pr_info("Address spaces switched, "

				"mvcos available\n");

arch/s390/kernel/vdso.c

+4 −4
Original line number Diff line number Diff line
@@ -85,7 +85,7 @@ struct vdso_data *vdso_data = &vdso_data_store.data; 
static void vdso_init_data(struct vdso_data *vd)

{

	vd->ectg_available =

		addressing_mode != HOME_SPACE_MODE && test_facility(31);

		s390_user_mode != HOME_SPACE_MODE && test_facility(31);

}



#ifdef CONFIG_64BIT
@@ -102,7 +102,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore) 


	lowcore->vdso_per_cpu_data = __LC_PASTE;



	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)

	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)

		return 0;



	segment_table = __get_free_pages(GFP_KERNEL, SEGMENT_ORDER);
@@ -147,7 +147,7 @@ void vdso_free_per_cpu(struct _lowcore *lowcore) 
	unsigned long segment_table, page_table, page_frame;

	u32 *psal, *aste;



	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)

	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)

		return;



	psal = (u32 *)(addr_t) lowcore->paste[4];
@@ -165,7 +165,7 @@ static void vdso_init_cr5(void) 
{

	unsigned long cr5;



	if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)

	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)

		return;

	cr5 = offsetof(struct _lowcore, paste);

	__ctl_load(cr5, 5, 5);