diff options
| -rw-r--r-- | mm/memory.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index 5596d77e8656..5c55270729f7 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3613,11 +3613,13 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, ret = get_user_pages(tsk, mm, addr, 1, write, 1, &page, &vma); if (ret <= 0) { +#ifndef CONFIG_HAVE_IOREMAP_PROT + break; +#else /* * Check if this is a VM_IO | VM_PFNMAP VMA, which * we can access using slightly different code. */ -#ifdef CONFIG_HAVE_IOREMAP_PROT vma = find_vma(mm, addr); if (!vma || vma->vm_start > addr) break; @@ -3625,9 +3627,9 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, ret = vma->vm_ops->access(vma, addr, buf, len, write); if (ret <= 0) -#endif break; bytes = ret; +#endif } else { bytes = len; offset = addr & (PAGE_SIZE-1); |