From f5e10287367dcffb5504d19c83e85ca041ca2596 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 5 May 2012 15:05:48 +0000 Subject: [PATCH] task_allocator: Use config switches instead of magic defines Replace __HAVE_ARCH_TASK_ALLOCATOR and __HAVE_ARCH_THREAD_ALLOCATOR with proper config switches. Signed-off-by: Thomas Gleixner Cc: Sam Ravnborg Cc: Tony Luck Link: http://lkml.kernel.org/r/20120505150142.371309416@linutronix.de --- arch/Kconfig | 8 ++++++++ arch/ia64/Kconfig | 2 ++ arch/ia64/include/asm/thread_info.h | 3 --- arch/sparc/Kconfig | 1 + arch/sparc/include/asm/thread_info_32.h | 2 -- kernel/fork.c | 7 +++---- 6 files changed, 14 insertions(+), 9 deletions(-) diff --git a/arch/Kconfig b/arch/Kconfig index 597b132b3902..bd265a217bd2 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -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 diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 022ea3a9d1ab..ba667b60f32d 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -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 diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index e054bcc4273c..310d9734f02d 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -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, \ diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index e417f35d5912..ec0347aaeaa8 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -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 diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index c2a1080cdd3b..b29498dea6b7 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -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) diff --git a/kernel/fork.c b/kernel/fork.c index 7590bd6e8dff..a1793e442b20 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -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