BUG();
spin_lock(&init_mm.page_table_lock);
do {
+ pud_t *pud;
pmd_t *pmd;
- pmd = pmd_alloc(&init_mm, dir, address);
+
error = -ENOMEM;
+ pud = pud_alloc(&init_mm, dir, address);
+ if (!pud)
+ break;
+ pmd = pmd_alloc(&init_mm, pud, address);
if (!pmd)
break;
if (remap_area_pmd(pmd, address, end - address,
/*
* Don't allow anybody to remap normal RAM that we're using..
*/
- if (phys_addr < virt_to_phys(high_memory)) {
+ if (phys_addr <= virt_to_phys(high_memory - 1)) {
char *t_addr, *t_end;
struct page *page;
/*
* Ok, go for it..
*/
- area = get_vm_area(size, VM_IOREMAP);
+ area = get_vm_area(size, VM_IOREMAP | (flags << 20));
if (!area)
return NULL;
area->phys_addr = phys_addr;
/* Guaranteed to be > phys_addr, as per __ioremap() */
last_addr = phys_addr + size - 1;
- if (last_addr < virt_to_phys(high_memory)) {
+ if (last_addr < virt_to_phys(high_memory) - 1) {
struct page *ppage = virt_to_page(__va(phys_addr));
unsigned long npages;
if (!p) {
printk("__iounmap: bad address %p\n", addr);
return;
- }
+ }
- if (p->flags && p->phys_addr < virt_to_phys(high_memory)) {
+ if ((p->flags >> 20) && p->phys_addr < virt_to_phys(high_memory) - 1) {
+ /* p->size includes the guard page, but cpa doesn't like that */
change_page_attr(virt_to_page(__va(p->phys_addr)),
- p->size >> PAGE_SHIFT,
+ (p->size - PAGE_SIZE) >> PAGE_SHIFT,
PAGE_KERNEL);
global_flush_tlb();
}