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s390/thread_info: get rid of THREAD_ORDER define

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We have the s390 specific THREAD_ORDER define and the THREAD_SIZE_ORDER
define which is also used in common code. Both have exactly the same
semantics. Therefore get rid of THREAD_ORDER and always use
THREAD_SIZE_ORDER instead.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2016-11-14 14:39:16 +01:00 committed by Martin Schwidefsky
parent 56e9219a82
commit 3a890380e4
7 changed files with 8 additions and 10 deletions
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2
arch/s390/boot/compressed/head.S
View File

@ -46,7 +46,7 @@ mover_end:
.align 8
.Lstack:
.quad 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
.quad 0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER))
.Loffset:
.quad 0x11000
.Lmvsize:

6
arch/s390/include/asm/thread_info.h
View File

@ -12,10 +12,10 @@
/*
* Size of kernel stack for each process
*/
#define THREAD_ORDER 2
#define THREAD_SIZE_ORDER 2
#define ASYNC_ORDER 2
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
#define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER)
#ifndef __ASSEMBLY__
@ -46,8 +46,6 @@ struct thread_info {
void arch_release_task_struct(struct task_struct *tsk);
int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define THREAD_SIZE_ORDER THREAD_ORDER
#endif
/*

2
arch/s390/kernel/entry.S
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@ -42,7 +42,7 @@ __PT_R13 = __PT_GPRS + 104
__PT_R14 = __PT_GPRS + 112
__PT_R15 = __PT_GPRS + 120
STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER
STACK_SHIFT = PAGE_SHIFT + THREAD_SIZE_ORDER
STACK_SIZE = 1 << STACK_SHIFT
STACK_INIT = STACK_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE

2
arch/s390/kernel/head.S
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@ -315,7 +315,7 @@ ENTRY(startup_kdump)
jg startup_continue
.Lstack:
.long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
.long 0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER))
.align 8
6: .long 0x7fffffff,0xffffffff

2
arch/s390/kernel/head64.S
View File

@ -35,7 +35,7 @@ ENTRY(startup_continue)
larl %r14,init_task
stg %r14,__LC_CURRENT
larl %r15,init_thread_union
aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
aghi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER) # init_task_union + THREAD_SIZE
stg %r15,__LC_KERNEL_STACK # set end of kernel stack
aghi %r15,-160
#

2
arch/s390/kernel/irq.c
View File

@ -168,7 +168,7 @@ void do_softirq_own_stack(void)
old = current_stack_pointer();
/* Check against async. stack address range. */
new = S390_lowcore.async_stack;
if (((new - old) >> (PAGE_SHIFT + THREAD_ORDER)) != 0) {
if (((new - old) >> (PAGE_SHIFT + THREAD_SIZE_ORDER)) != 0) {
/* Need to switch to the async. stack. */
new -= STACK_FRAME_OVERHEAD;
((struct stack_frame *) new)->back_chain = old;

2
arch/s390/kernel/swsusp.S
View File

@ -194,7 +194,7 @@ pgm_check_entry:
/* Suspend CPU not available -> panic */
larl %r15,init_thread_union
ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER)
ahi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)
larl %r2,.Lpanic_string
larl %r3,_sclp_print_early
lghi %r1,0