}
flush_icache_page(vma, page);
set_pte_at(mm, address, page_table, pte);
- do_page_add_anon_rmap(page, vma, address, exclusive);
+ if (swapcache) /* ksm created a completely new copy */
+ page_add_new_anon_rmap(page, vma, address);
+ else
+ do_page_add_anon_rmap(page, vma, address, exclusive);
/* It's better to call commit-charge after rmap is established */
mem_cgroup_commit_charge_swapin(page, ptr);
}
#endif /* __PAGETABLE_PMD_FOLDED */
-int make_pages_present(unsigned long addr, unsigned long end)
-{
- int ret, len, write;
- struct vm_area_struct * vma;
-
- vma = find_vma(current->mm, addr);
- if (!vma)
- return -ENOMEM;
- /*
- * We want to touch writable mappings with a write fault in order
- * to break COW, except for shared mappings because these don't COW
- * and we would not want to dirty them for nothing.
- */
- write = (vma->vm_flags & (VM_WRITE | VM_SHARED)) == VM_WRITE;
- BUG_ON(addr >= end);
- BUG_ON(end > vma->vm_end);
- len = DIV_ROUND_UP(end, PAGE_SIZE) - addr/PAGE_SIZE;
- ret = get_user_pages(current, current->mm, addr,
- len, write, 0, NULL, NULL);
- if (ret < 0)
- return ret;
- return ret == len ? 0 : -EFAULT;
-}
-
#if !defined(__HAVE_ARCH_GATE_AREA)
#if defined(AT_SYSINFO_EHDR)