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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-05-05 15:05:42 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-05-08 14:08:44 +0200 |
| commit | 38e7c572ce7310def003d8bb7c34260f5d8118cb (patch) | |
| tree | 26382e768460c49a09ebe15e57ad3e69a36d1660 /arch/x86 | |
| parent | 7b8fe0570a65486e77823d5fcec9998c2aae9970 (diff) | |
| download | linux-3.10-38e7c572ce7310def003d8bb7c34260f5d8118cb.tar.gz linux-3.10-38e7c572ce7310def003d8bb7c34260f5d8118cb.tar.bz2 linux-3.10-38e7c572ce7310def003d8bb7c34260f5d8118cb.zip | |
x86: Use common threadinfo allocator
The only difference is the free_thread_info function, which frees
xstate.
Use the new arch_release_task_struct() function instead and switch
over to the core allocator.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20120505150141.559556763@linutronix.de
Cc: x86@kernel.org
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/boot.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/page_32_types.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/page_64_types.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 20 | ||||
| -rw-r--r-- | arch/x86/kernel/irq_32.c | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/process.c | 5 |
6 files changed, 12 insertions, 31 deletions
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h index 5e1a2eef3e7..b13fe63bdc5 100644 --- a/arch/x86/include/asm/boot.h +++ b/arch/x86/include/asm/boot.h @@ -19,7 +19,7 @@ #ifdef CONFIG_X86_64 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT #else -#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_ORDER) +#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_SIZE_ORDER) #endif #define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2) diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h index ade619ff9e2..ef17af01347 100644 --- a/arch/x86/include/asm/page_32_types.h +++ b/arch/x86/include/asm/page_32_types.h @@ -15,8 +15,8 @@ */ #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) -#define THREAD_ORDER 1 -#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) +#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define STACKFAULT_STACK 0 #define DOUBLEFAULT_STACK 1 diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h index 7639dbf5d22..320f7bb95f7 100644 --- a/arch/x86/include/asm/page_64_types.h +++ b/arch/x86/include/asm/page_64_types.h @@ -1,8 +1,8 @@ #ifndef _ASM_X86_PAGE_64_DEFS_H #define _ASM_X86_PAGE_64_DEFS_H -#define THREAD_ORDER 1 -#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) +#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define CURRENT_MASK (~(THREAD_SIZE - 1)) #define EXCEPTION_STACK_ORDER 0 diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 8692a166dd4..73cfe0d309c 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -155,24 +155,6 @@ struct thread_info { #define PREEMPT_ACTIVE 0x10000000 -/* thread information allocation */ -#ifdef CONFIG_DEBUG_STACK_USAGE -#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO) -#else -#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK) -#endif - -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - -#define alloc_thread_info_node(tsk, node) \ -({ \ - struct page *page = alloc_pages_node(node, THREAD_FLAGS, \ - THREAD_ORDER); \ - struct thread_info *ret = page ? page_address(page) : NULL; \ - \ - ret; \ -}) - #ifdef CONFIG_X86_32 #define STACK_WARN (THREAD_SIZE/8) @@ -282,7 +264,7 @@ static inline bool is_ia32_task(void) #ifndef __ASSEMBLY__ extern void arch_task_cache_init(void); -extern void free_thread_info(struct thread_info *ti); extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); +extern void arch_release_task_struct(struct task_struct *tsk); #endif #endif /* _ASM_X86_THREAD_INFO_H */ diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c index 58b7f27cb3e..344faf8d0d6 100644 --- a/arch/x86/kernel/irq_32.c +++ b/arch/x86/kernel/irq_32.c @@ -127,8 +127,8 @@ void __cpuinit irq_ctx_init(int cpu) return; irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), - THREAD_FLAGS, - THREAD_ORDER)); + THREADINFO_GFP, + THREAD_SIZE_ORDER)); memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); irqctx->tinfo.cpu = cpu; irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; @@ -137,8 +137,8 @@ void __cpuinit irq_ctx_init(int cpu) per_cpu(hardirq_ctx, cpu) = irqctx; irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), - THREAD_FLAGS, - THREAD_ORDER)); + THREADINFO_GFP, + THREAD_SIZE_ORDER)); memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); irqctx->tinfo.cpu = cpu; irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 8215458f6af..e8173154800 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -76,10 +76,9 @@ void free_thread_xstate(struct task_struct *tsk) fpu_free(&tsk->thread.fpu); } -void free_thread_info(struct thread_info *ti) +void arch_release_task_struct(struct task_struct *tsk) { - free_thread_xstate(ti->task); - free_pages((unsigned long)ti, THREAD_ORDER); + free_thread_xstate(tsk); } void arch_task_cache_init(void) |