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Diffstat (limited to 'arch/score/mm')
-rw-r--r--arch/score/mm/cache.c2
-rw-r--r--arch/score/mm/fault.c21
-rw-r--r--arch/score/mm/init.c68
-rw-r--r--arch/score/mm/tlb-score.c2
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();