diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 08:54:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 08:54:21 -0700 |
| commit | 91151240ed8e97cc4457dae4094153c2744f1eb8 (patch) | |
| tree | 201a449a659bcc31cf528f4630b8ec4c49b26f02 /arch/x86/kernel | |
| parent | 211baf4ffc6e78a2299bb4215264ada313048ec5 (diff) | |
| parent | fe8e0c25cad28e8858ecfa5863333c70685a6811 (diff) | |
Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, 32-bit: Align percpu area and irq stacks to THREAD_SIZE
x86: Move alloc_desk_mask variables inside ifdef
x86-32: Align IRQ stacks properly
x86: Remove CONFIG_4KSTACKS
x86: Always use irq stacks
Fixed up trivial conflicts in include/linux/{irq.h, percpu-defs.h}
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/irq_32.c | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 2 |
2 files changed, 4 insertions, 10 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c index 10709f29d16..50fbbe60e50 100644 --- a/arch/x86/kernel/irq_32.c +++ b/arch/x86/kernel/irq_32.c @@ -49,20 +49,19 @@ static inline int check_stack_overflow(void) { return 0; } static inline void print_stack_overflow(void) { } #endif -#ifdef CONFIG_4KSTACKS /* * per-CPU IRQ handling contexts (thread information and stack) */ union irq_ctx { struct thread_info tinfo; u32 stack[THREAD_SIZE/sizeof(u32)]; -} __attribute__((aligned(PAGE_SIZE))); +} __attribute__((aligned(THREAD_SIZE))); static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx); static DEFINE_PER_CPU(union irq_ctx *, softirq_ctx); -static DEFINE_PER_CPU_PAGE_ALIGNED(union irq_ctx, hardirq_stack); -static DEFINE_PER_CPU_PAGE_ALIGNED(union irq_ctx, softirq_stack); +static DEFINE_PER_CPU_MULTIPAGE_ALIGNED(union irq_ctx, hardirq_stack, THREAD_SIZE); +static DEFINE_PER_CPU_MULTIPAGE_ALIGNED(union irq_ctx, softirq_stack, THREAD_SIZE); static void call_on_stack(void *func, void *stack) { @@ -187,11 +186,6 @@ asmlinkage void do_softirq(void) local_irq_restore(flags); } -#else -static inline int -execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) { return 0; } -#endif - bool handle_irq(unsigned irq, struct pt_regs *regs) { struct irq_desc *desc; diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 38e2b67807e..e03530aebfd 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -301,7 +301,7 @@ SECTIONS } #if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) - PERCPU(PAGE_SIZE) + PERCPU(THREAD_SIZE) #endif . = ALIGN(PAGE_SIZE); |