locks: rename lock-manager ops

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / nommu.c

diff --git a/mm/nommu.c b/mm/nommu.c
index 1fd0c51b10a63db69181fc6ba2f42127aaad6ef7..9edc897a3970e3a22753e6bbed4ce0bdde9d0f19 100644 (file)
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1813,10 +1813,13 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
        return NULL;
 }
 
-int remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
-               unsigned long to, unsigned long size, pgprot_t prot)
+int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
+               unsigned long pfn, unsigned long size, pgprot_t prot)
 {
-       vma->vm_start = vma->vm_pgoff << PAGE_SHIFT;
+       if (addr != (pfn << PAGE_SHIFT))
+               return -EINVAL;
+
+       vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
        return 0;
 }
 EXPORT_SYMBOL(remap_pfn_range);