diff options
Diffstat (limited to 'arch/score/mm')
| -rw-r--r-- | arch/score/mm/cache.c | 2 | ||||
| -rw-r--r-- | arch/score/mm/fault.c | 21 | ||||
| -rw-r--r-- | arch/score/mm/init.c | 68 | ||||
| -rw-r--r-- | arch/score/mm/tlb-score.c | 2 |
4 files changed, 22 insertions, 71 deletions
diff --git a/arch/score/mm/cache.c b/arch/score/mm/cache.c index b25e9574360..f85ec1a7c88 100644 --- a/arch/score/mm/cache.c +++ b/arch/score/mm/cache.c @@ -113,7 +113,7 @@ static inline void setup_protection_map(void) protection_map[15] = PAGE_SHARED; } -void __devinit cpu_cache_init(void) +void cpu_cache_init(void) { setup_protection_map(); } diff --git a/arch/score/mm/fault.c b/arch/score/mm/fault.c index 47b600e4b2c..52238983527 100644 --- a/arch/score/mm/fault.c +++ b/arch/score/mm/fault.c @@ -47,6 +47,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, struct task_struct *tsk = current; struct mm_struct *mm = tsk->mm; const int field = sizeof(unsigned long) * 2; + unsigned long flags = 0; siginfo_t info; int fault; @@ -75,6 +76,9 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, if (in_atomic() || !mm) goto bad_area_nosemaphore; + if (user_mode(regs)) + flags |= FAULT_FLAG_USER; + down_read(&mm->mmap_sem); vma = find_vma(mm, address); if (!vma) @@ -95,18 +99,18 @@ good_area: if (write) { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; + flags |= FAULT_FLAG_WRITE; } else { if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC))) goto bad_area; } -survive: /* * If for any reason at all we couldn't handle the fault, * make sure we exit gracefully rather than endlessly redo * the fault. */ - fault = handle_mm_fault(mm, vma, address, write); + fault = handle_mm_fault(mm, vma, address, flags); if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -167,15 +171,10 @@ no_context: */ out_of_memory: up_read(&mm->mmap_sem); - if (is_global_init(tsk)) { - yield(); - down_read(&mm->mmap_sem); - goto survive; - } - printk("VM: killing process %s\n", tsk->comm); - if (user_mode(regs)) - do_group_exit(SIGKILL); - goto no_context; + if (!user_mode(regs)) + goto no_context; + pagefault_out_of_memory(); + return; do_sigbus: up_read(&mm->mmap_sem); diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c index 50fdec54c70..9fbce49ad3b 100644 --- a/arch/score/mm/init.c +++ b/arch/score/mm/init.c @@ -31,21 +31,17 @@ #include <linux/mm.h> #include <linux/mman.h> #include <linux/pagemap.h> -#include <linux/proc_fs.h> +#include <linux/kcore.h> #include <linux/sched.h> #include <linux/initrd.h> #include <asm/sections.h> #include <asm/tlb.h> -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); - unsigned long empty_zero_page; EXPORT_SYMBOL_GPL(empty_zero_page); -static struct kcore_list kcore_mem, kcore_vmalloc; - -static unsigned long setup_zero_page(void) +static void setup_zero_page(void) { struct page *page; @@ -54,9 +50,7 @@ static unsigned long setup_zero_page(void) panic("Oh boy, that early out of memory?"); page = virt_to_page((void *) empty_zero_page); - SetPageReserved(page); - - return 1UL; + mark_page_reserved(page); } #ifndef CONFIG_NEED_MULTIPLE_NODES @@ -81,67 +75,25 @@ void __init paging_init(void) void __init mem_init(void) { - unsigned long codesize, reservedpages, datasize, initsize; - unsigned long tmp, ram = 0; - high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); - totalram_pages += free_all_bootmem(); - totalram_pages -= setup_zero_page(); /* Setup zeroed pages. */ - reservedpages = 0; - - for (tmp = 0; tmp < max_low_pfn; tmp++) - if (page_is_ram(tmp)) { - ram++; - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - } - - num_physpages = ram; - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - ram << (PAGE_SHIFT-10), codesize >> 10, - reservedpages << (PAGE_SHIFT-10), datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); -} -#endif /* !CONFIG_NEED_MULTIPLE_NODES */ + free_all_bootmem(); + setup_zero_page(); /* Setup zeroed pages. */ -static void free_init_pages(const char *what, unsigned long begin, unsigned long end) -{ - unsigned long pfn; - - for (pfn = PFN_UP(begin); pfn < PFN_DOWN(end); pfn++) { - struct page *page = pfn_to_page(pfn); - void *addr = phys_to_virt(PFN_PHYS(pfn)); - - ClearPageReserved(page); - init_page_count(page); - memset(addr, POISON_FREE_INITMEM, PAGE_SIZE); - __free_page(page); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); + mem_init_print_info(NULL); } +#endif /* !CONFIG_NEED_MULTIPLE_NODES */ #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", - virt_to_phys((void *) start), - virt_to_phys((void *) end)); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif void __init_refok free_initmem(void) { - free_init_pages("unused kernel memory", - __pa(&__init_begin), - __pa(&__init_end)); + free_initmem_default(POISON_FREE_INITMEM); } unsigned long pgd_current; diff --git a/arch/score/mm/tlb-score.c b/arch/score/mm/tlb-score.c index 6fdb100244c..004073717de 100644 --- a/arch/score/mm/tlb-score.c +++ b/arch/score/mm/tlb-score.c @@ -240,7 +240,7 @@ void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte) local_irq_restore(flags); } -void __cpuinit tlb_init(void) +void tlb_init(void) { tlblock_set(0); local_flush_tlb_all(); |
