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s390: unify stack size definitions

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Remove STACK_ORDER and STACK_SIZE in favour of identical THREAD_SIZE_ORDER
and THREAD_SIZE definitions. THREAD_SIZE and THREAD_SIZE_ORDER naming is
misleading since it is used as general kernel stack size information. But
both those definitions are used in the common code and throughout
architectures specific code, so changing the naming is problematic.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik 2018-09-18 18:23:40 +02:00 • committed by Martin Schwidefsky
parent ce3dc44749
commit 32ce55a659
6 changed files with 16 additions and 21 deletions
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12
arch/s390/kernel/setup.c
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@ -308,13 +308,13 @@ unsigned long stack_alloc(void)
{
#ifdef CONFIG_VMAP_STACK
return (unsigned long)
__vmalloc_node_range(STACK_SIZE, STACK_SIZE,
__vmalloc_node_range(THREAD_SIZE, THREAD_SIZE,
VMALLOC_START, VMALLOC_END,
THREADINFO_GFP,
PAGE_KERNEL, 0, NUMA_NO_NODE,
__builtin_return_address(0));
#else
return __get_free_pages(GFP_KERNEL, STACK_ORDER);
return __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER);
#endif
}
@ -323,7 +323,7 @@ void stack_free(unsigned long stack)
#ifdef CONFIG_VMAP_STACK
vfree((void *) stack);
#else
free_pages(stack, STACK_ORDER);
free_pages(stack, THREAD_SIZE_ORDER);
#endif
}
@ -331,7 +331,7 @@ int __init arch_early_irq_init(void)
{
unsigned long stack;
stack = __get_free_pages(GFP_KERNEL, STACK_ORDER);
stack = __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER);
if (!stack)
panic("Couldn't allocate async stack");
S390_lowcore.async_stack = stack + STACK_INIT_OFFSET;
@ -347,7 +347,7 @@ static int __init async_stack_realloc(void)
if (!new)
panic("Couldn't allocate async stack");
S390_lowcore.async_stack = new + STACK_INIT_OFFSET;
free_pages(old, STACK_ORDER);
free_pages(old, THREAD_SIZE_ORDER);
return 0;
}
early_initcall(async_stack_realloc);
@ -428,7 +428,7 @@ static void __init setup_lowcore(void)
* Allocate the global restart stack which is the same for
* all CPUs in cast *one* of them does a PSW restart.
*/
restart_stack = memblock_virt_alloc(STACK_SIZE, STACK_SIZE);
restart_stack = memblock_virt_alloc(THREAD_SIZE, THREAD_SIZE);
restart_stack += STACK_INIT_OFFSET;
/*