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task_allocator: Use config switches instead of magic defines

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Replace __HAVE_ARCH_TASK_ALLOCATOR and __HAVE_ARCH_THREAD_ALLOCATOR
with proper config switches.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20120505150142.371309416@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-05-05 15:05:48 +00:00
parent 66bb4cda55
commit f5e1028736
6 changed files with 14 additions and 9 deletions
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8
arch/Kconfig
View File

@ -152,6 +152,14 @@ config GENERIC_SMP_IDLE_THREAD
config ARCH_INIT_TASK
bool
# Select if arch has its private alloc_task_struct() function
config ARCH_TASK_STRUCT_ALLOCATOR
bool
# Select if arch has its private alloc_thread_info() function
config ARCH_THREAD_INFO_ALLOCATOR
bool
config HAVE_REGS_AND_STACK_ACCESS_API
bool
help

2
arch/ia64/Kconfig
View File

@ -35,6 +35,8 @@ config IA64
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD
select ARCH_INIT_TASK
select ARCH_TASK_STRUCT_ALLOCATOR
select ARCH_THREAD_INFO_ALLOCATOR
default y
help
The Itanium Processor Family is Intel's 64-bit successor to

3
arch/ia64/include/asm/thread_info.h
View File

@ -54,8 +54,6 @@ struct thread_info {
}, \
}
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
#ifndef ASM_OFFSETS_C
/* how to get the thread information struct from C */
#define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE))
@ -84,7 +82,6 @@ struct thread_info {
#endif
#define end_of_stack(p) (unsigned long *)((void *)(p) + IA64_RBS_OFFSET)
#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
#define alloc_task_struct_node(node) \
({ \
struct page *page = alloc_pages_node(node, GFP_KERNEL | __GFP_COMP, \

1
arch/sparc/Kconfig
View File

@ -36,6 +36,7 @@ config SPARC32
def_bool !64BIT
select GENERIC_ATOMIC64
select CLZ_TAB
select ARCH_THREAD_INFO_ALLOCATOR
config SPARC64
def_bool 64BIT

2
arch/sparc/include/asm/thread_info_32.h
View File

@ -80,8 +80,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
*/
#define THREAD_INFO_ORDER 1
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info_node, int)
#define alloc_thread_info_node(tsk, node) BTFIXUP_CALL(alloc_thread_info_node)(node)

7
kernel/fork.c
View File

@ -111,7 +111,7 @@ int nr_processes(void)
return total;
}
#ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
#ifndef CONFIG_ARCH_TASK_STRUCT_ALLOCATOR
static struct kmem_cache *task_struct_cachep;
static inline struct task_struct *alloc_task_struct_node(int node)
@ -128,8 +128,7 @@ static inline void free_task_struct(struct task_struct *tsk)
}
#endif
#ifndef __HAVE_ARCH_THREAD_INFO_ALLOCATOR
#ifndef CONFIG_ARCH_THREAD_INFO_ALLOCATOR
void __weak arch_release_thread_info(struct thread_info *ti) { }
/*
@ -243,7 +242,7 @@ void __init __weak arch_task_cache_init(void) { }
void __init fork_init(unsigned long mempages)
{
#ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
#ifndef CONFIG_ARCH_TASK_STRUCT_ALLOCATOR
#ifndef ARCH_MIN_TASKALIGN
#define ARCH_MIN_TASKALIGN L1_CACHE_BYTES
#endif